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BQ0Z80-V102中文资料

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FEATURES

APPLICATIONS

DESCRIPTION

bq20z80-V102

SLUS681B–NOVEMBER2005–REVISED JANUARY2007 SBS1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK?

TECHNOLOGY FOR USE WITH THE bq29312A

?Lifetime Data Logging

?Patented Impedance Track?Technology?38-Pin TSSOP(DBT)

Accurately Measures Available Charge in

Li-Ion and Li-Polymer Batteries

?Notebook PCs

?Better than1%Error Over Lifetime of the

Battery?Medical and Test Equipment

?Portable Instrumentation

?Instant Accuracy–No Learning Cycle

Required

?Supports the Smart Battery Specification SBS

V1.1The bq20z80SBS-compliant gas gauge IC,

incorporating patented Impedance Track??Works With the TI bq29312A Analog

technology,is designed for battery-pack or in-system Front-End(AFE)Protection IC to Provide

installation.The bq20z80measures and maintains Complete Pack Electronics Solution

an accurate record of available charge in Li-ion or ?Full Array of Programmable Voltage,Current,Li-polymer batteries using its integrated and Temperature Protection Features high-performance analog peripherals.The bq20z80

monitors capacity change,battery impedance,?Integrated Time Base Removes Need for

open-circuit voltage,and other critical parameters of External Crystal with Optional Crystal Input

the battery pack,and reports the information to the ?Electronics for7.2-V,10.8-V or14.4-V Battery

system host controller over a serial-communication Packs With Few External Components

bus.It is designed to work with the bq29312A analog ?Based on a Powerful Low-Power RISC CPU front-end(AFE)protection IC to maximize Core With High-Performance Peripherals functionality and safety,and minimize component

count and cost in smart battery circuits.?Integrated Field Programmable FLASH

Memory Eliminates the Need for External The Impedance Track technology continuously Configuration Memory analyzes the battery impedance,resulting in superior

gas-gauging accuracy.This enables remaining ?Measures Charge Flow Using a

capacity to be calculated with discharge rate, High-Resolution,16-Bit Integrating

temperature,and cell aging all accounted for during Delta-Sigma Converter

each stage of every cycle.

–Better Than0.65nVh of Resolution

–Self-Calibrating AVAILABLE OPTIONS

–Offset Error Less Than1μV PACKAGE

T A

?Uses16-Bit Delta-Sigma Converter for38-PIN TSSOP(DBT)38-PIN TSSOP(DBT)

Tube Tape and Reel Accurate Voltage and Temperature

–40°C to

Measurements bq20z80DBT-V102(1)bq20z80DBTR-V102(2)

85°C

?Extensive Data Reporting Options For

Improved System Interaction

?Optional Pulse Charging Feature for Improved

Charge Times

?Drives3-,4-or5-Segment LED Display for

Remaining Capacity Indication

(1)A single tube quantity is50units.

?Supports SHA-1Authentication(2)A single reel quantity is2000units

Please be aware that an important notice concerning availability,standard warranty,and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Impedance Track is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.Copyright?2005–2007,Texas Instruments Incorporated Products conform to specifications per the terms of the Texas

Instruments standard warranty.Production processing does not

necessarily include testing of all parameters.

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XCK1 / VSSA

FIL T

VDDA

SR2

SR1

VSSA

NC - No internal connection

bq20z80-V102

SLUS681B–NOVEMBER2005–REVISED JANUARY2007

These devices have limited built-in ESD protection.The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

TSSOP(DBT)

(TOP VIEW)

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bq20z80-V102

SLUS681B–NOVEMBER2005–REVISED JANUARY2007 TERMINAL FUNCTIONS

TERMINAL

I/O(1)DESCRIPTION

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1VIN I Voltage measurement input from the AFE

2TS1I1st Thermistor voltage input connection to monitor temperature

3TS2I2nd Thermistor voltage input connection to monitor temperature

4PU O Output to pull up the PRES pin for system detection

5PRES I Active low input to sense system insertion and typically requires additional ESD protection

6SCLK I/OD Communication clock to the AFE

7SAFE O Active high output to enforce additional level of safety protection;e.g.,fuse blow.(Inverse of pin12) 8VDDD P Positive supply for digital circuitry and I/O pins

Backup power to the bq20z80data registers during periods of low operating voltage.RBI accepts a 9RBI P

storage capacitor or a battery input.

10SDATA I/O Data transfer to and from the AFE

12SAFE O Active low output to enforce additional level of safety protection;e.g.,fuse blow.(Inverse of pin7) 13NC–Not used—leave floating

14NC–Not used—leave floating

15SMBC I/OD SMBus clock open-drain bidirectional pin used to clock the data transfer to and from the bq20z80 16SMBD I/OD SMBus data open-drain bidirectional pin used to transfer address and data to and from the bq20z80

Display control for the LEDs.This pin is typically connected to bq29312A REG via a100-k?resistor 17DISP I

and a push-button switch to VSSD.

Active low input to detect secondary protector output status and allows the bq20z80to report the 18PFIN I

status of the2nd level protection output

20LED5O LED5display segment that drives an external LED depending on the firmware configuration

21LED4O LED4display segment that drives an external LED depending on the firmware configuration

22LED3O LED3display segment that drives an external LED depending on the firmware configuration

23LED2O LED2display segment that drives an external LED depending on the firmware configuration

24LED1O LED1display segment that drives an external LED depending on the firmware configuration

25XALERT I Input from bq29312A XALERT output.

26MRST I Master reset input that forces the device into reset when held high

Connections for a small-value sense resistor to monitor the battery charge-and discharge-current 27SR2IA

flow

Connections for a small-value sense resistor to monitor the battery charge-and discharge-current 28SR1IA

flow

31VDDA P Positive supply for analog circuitry

Analog input connected to the external PLL filter components which are a150-pF capacitor to V SSA, 32FILT IA in parallel with a61.9-k?resistor and a2200-pF capacitor in series.Place these components as

close as possible to the bq20z80to ensure optimal performance.

32.768-kHz crystal oscillator output pin or connected to a100k,50ppm or better resistor if the

33XCK2/ROSC O

internal oscillator is used

34XCK1/VSSA I32.768-kHz crystal oscillator input pin or connected to VSSA if the internal oscillator is used

35CLKOUT O32.768-kHz output for the bq29312.This pin should be directly connected to the AFE.

36,37NC-Not used—leave floating

11,19,38VSSD P Negative supply for digital circuitry

29,30VSSA P Negative supply for analog circuitry.

(1)I=Input,IA=Analog input,I/O=Input/output,I/OD=Input/Open-drain output,O=Output,OA=Analog output,P=Power

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

over operating free-air temperature range (unless otherwise noted)(1)

RANGE

V DDA and V DDD relative to V SS (2)Supply voltage range –0.3V to 4.1V V (IOD)relative to V SS (2)Open-drain I/O pins

–0.3V to 6V V I relative to V SS (2)Input voltage range to all other pins –0.3V to VDDA +0.3V

T A Operating free-air temperature range –40°C to 85°C T stg Storage temperature range

–65°C to 150°C

(1)Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device.These are stress ratings only,and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied.Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.(2)

V SS refers to the common node of V (SSA)and V (SSD).

V DD =3V to 3.6V,T A =–40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS MIN TYP MAX UNIT V DD Supply voltage

VDDA and VDDD 3

3.3 3.6

V No flash programming 350(1)I DD

Operating mode current

μA bq20z80+bq29312A 375Sleep mode

8(1)I (SLP)Low-power storage mode current μA bq20z80+bq29312A 28Shutdown Mode 0.1(1)I (SLP)Shutdown Current

μA bq20z80+bq29312A 0.1

Output voltage low SMBC,SMBD,SDATA,SCLK,SAFE,I OL =0.5mA 0.4V SAFE,PU V OL

LED1–LED5

I OL =10mA 0.4V V OH Output high voltage,SMBC,SMBD,SDATA,SCLK,SAFE,I OH =–1mA

V DD –0.5

V SAFE,PU

V IL

Input voltage low SMBC,SMBD,SDATA,SCLK,XALERT,–0.30.8V PRES,PFIN DISP

–0.30.8V V IH

Input voltage high SMBC,SMBD,SDATA,SCLK,XALERT,26

V PRES,PFIN DISP

V DD +0.3

V C IN

Input capacitance

pF V (AI1)Input voltage range VIN,TS1,TS2V SS –0.30.8x V DD

V V (AI2)Input voltage range SR1,SR2V SS –0.25

0.25Z (AI1)Input impedance SR1,SR20V–1V 2.5M ?Z (AI2)Input impedance VIN,TS1,TS20V–1V

M ?

(1)

This value does not include the bq29312A

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POWER-ON RESET

2.10

2.15

2.202.252.302.352.402.452.50

T A - Free-Air Temperature - °C

- N e g a t i v e G o i n g I n p u t T h r e s h o l d V o l t a g e - V

POWER ON RESET BEHAVIOR

FREE-AIR TEMPERATURE

V I T V h y s - H y s t e r i s i s V o l t a g e - m V

INTEGRATING ADC (Coulomb Counter)CHARACTERISTICS

PLL SWITCHING CHARACTERISTICS

OSCILLATOR

bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

V DD =3V to 3.6V,T A =–40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS MIN TYP MAX UNIT V IT–Negative-going voltage input 2.1 2.3 2.5V V HYS

Power-on reset hysteresis

150

200

V DD =3V to 3.6V,T A =–40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN TYP

MAX UNIT V (SR)Input voltage range,V (SR2)and V (SR1)V (SR)=V(SR2)–V(SR1)

–0.25

0.25

V V (SROS)Input offset

1μV

INL

Integral nonlinearity error

0.004%

0.019%V DD =3V to 3.6V,T A =–40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN TYP MAX

UNIT t (SP)Start-up time

(1)

0.5%frequency error

(1)

The frequency error is measured from the trimmed frequency of the internal system clock which is 128oscillator frequency,nominally 4.194MHz.

V DD =3V to 3.6V,T A =–40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN TYP MAX UNIT

ROSC =100k ?

–2%0.25%2%f (exo)

Frequency error from 32.768kHz

ROSC =100k ?,V DD =3.3V –1%0.25%1%XCK1=12-pF XTAL

–0.25%

0.25%ROSC =100k ?250μs f (sxo)Start-up time

(1)

XCK1=12-pF XTAL

200

(1)

The start-up time is defined as the time it takes for the oscillator output frequency to be within 1%of the specified frequency.

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DATA FLASH MEMORY CHARACTERISTICS

bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

V DD =3V to 3.6V,T A =–40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS MIN TYP MAX UNIT t DR

Data retention

See (1)10Years Flash programming write-cycles

See (1)20,000

Cycles

t (WORDPROG)Word programming time See (1)2

ms I (DDPROG)Flash-write supply current

See

(1)

Assured by design.Not production tested

V DD =3V to 3.6V,T A =–40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP MAX UNIT I (RBI)RBI data-retention input current V (RBI)>3V,V DD

100

nA V (RBI)RBI data-retention voltage (1)

1.3V

(1)

Specified by design.Not production tested.

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SMBus TIMING

SPECIFICATIONS

bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

V DD =3V to 3.6V,T A =–40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN TYP MAX UNIT f SMB SMBus operating frequency Slave mode,SMBC 50%duty cycle 10

100

kHz

f MAS SMBus master clock frequency Master mode,no clock low slave extend

51.2

t BUF Bus free time between start and stop 4.7t HD:STA Hold time after (repeated)start 4μs

t SU:STA Repeated start setup time 4.7t SU:STO Stop setup time 4

Receive mode 0t HD:DAT Data hold time Transmit mode 300ns

t SU:DAT Data setup time 250t TIMEOUT Error signal/detect See

(1)

2535

ms t LOW Clock low period 4.7μs t HIGH Clock high period

See (2)4

50t LOW:SEXT Cumulative clock low slave extend time See (3)25ms t LOW:MEXT Cumulative clock low master extend time See

(4)

10t F Clock/data fall time (V ILMAX –0.15V)to (V IHMIN +0.15V)300ns t R Clock/data rise time

0.9VDD to (VILMAX –0.15V)

1000(1)The bq20z80times out when any clock low exceeds t TIMEOUT .

(2)t HIGH:MAX .is minimum bus idle time.SMBC =1for t >50μs causes reset of any transaction involving the bq20z80that is in progress.(3)t LOW:SEXT is the cumulative time a slave device is allowed to extend the clock cycles in one message from initial start to the stop.(4)

t LOW:MEXT is the cumulative time a master device is allowed to extend the clock cycles in one message from initial start to the stop.

SMBus TIMING DIAGRAM

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FEATURE SET

Primary (1st Level)Safety Features

Secondary (2nd Level)Safety Features

Charge Control Features

bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

NOTE:

The bq20z80-V102is designed to work with the bq29312A AFE.The bq20z80features are only available with the bq29312A.

The bq20z80supports a wide range of battery and system protection features that can easily be configured.The primary safety features includes:?Battery cell over/under voltage protection ?Battery pack over/under voltage protection ?2independent charge overcurrent protection ?3independent discharge overcurrent protection ?Short circuit protection

?Over temperature protection ?

Host watchdog

The secondary safety features of the bq20z80can be used to indicate more serious faults via the SAFE (pin 7)and SAFE (pin 12)pins.These pins can be used to blow a in-line fuse to permanently disable the battery pack from charging or discharging.The secondary safety features includes:?Safety over voltage ?Battery cell imbalance

?2nd level protection IC input ?Safety over current

?Safety over temperature ?Open thermistor

?Charge FET and 0Volt Charge FET fault ?Discharge FET fault

?Fuse blow failure detection ?AFE communication error ?

Internal flash data error

The bq20z80charge control features includes:?Report the appropriate charging current needed for constant current charging and the appropriate charging voltage needed for constant voltage charging to a smart charger using SMBus broadcasts.

Determines the chemical state of charge of each battery cell using Impendance Track?and can reduce the charge difference of the battery cells in fully charged state of the battery pack gradually using cell balancing algorithm during charging.This prevents fully charged cells from overcharging causing excessive degredation and also increases the usable pack energy by preventing to early charge termination ?supports pre-charging/zero-volt charging ?support fast charging ?supports pulse charging ?detects charge termination

report charging faults and also indicate charge status via charge and discharge alarms.

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Gas Gauging

LED Display

LifeTime Data Logging Features

Authentication

Power Modes

CONFIGURATION

Oscillator Function

bq20z80-V102

SLUS681B–NOVEMBER2005–REVISED JANUARY2007 FEATURE SET(continued)

The bq20z80uses the Impedance Track?Technology to measure and calculate the available charge in battery cells.The archievable accuracy is better than the coloumb counting method over the lifetime of the battery and there is no full charge discharge learning cycle required.

See Theory and Implementation of Impedance Track Battery Fuel-Gauging Algorithm application note (SLUA364)for further details.

The bq20z80can drive3-,4-,or5-segment LED display for remaining capacity indication.

The bq20z80offers a lifetime data logging array,where all important measurements are stored for warranty and analysis purposes.The data monitored includes:

?Lifetime maximum temperature

?Lifetime minimum temperature

?Lifetime maximum battery cell voltage

?Lifetime minimum battery cell voltage

?Lifetime maximum battery pack voltage

?Lifetime minimum battery pack voltage

?Lifetime maximum charge current

?Lifetime maximum discharge current

?Lifetime maximum charge power

?Lifetime maximum discharge power

?Lifetime maximum average discharge current

?Lifetime maximum average discharge power

?Lifetime average temperature

The bq20z80supports authentication by the host using SHA-1.

The bq20z80supports3different power modes to reduce power consumption:

?In Normal Mode,the bq20z80performs measurements,calculations,protection decicions,data update in1 second intervals.Between these intervals,the bq20z80is in a reduced power stage.

?In Sleep Mode,the bq20z80performs measurements,calculations,protection decicions,data update in adjustable time intervals.Between these intervals,the bq20z80is in a reduced power stage.

?In Shutdown Mode the bq20z80is completety disabled.

The oscillator of the bq20z80can be set up for internal or external operation.On power up,the bq20z80 automatically attempts to start the internal oscillator.If a100-k?resistor is not connected to ROSC(pin33), then it attempts to start the oscillator using an external32.768-kHz crystal.

NOTE:

Install either the100-k?ROSC resistor or the12-pF,32.768-kHz crystal.Do not

install both.

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System Present Operation

BATTERY PARAMETER MEASUREMENTS

Charge and Discharge Counting

Voltage

Current

Auto Calibration

Temperature

COMMUNICATIONS

SMBus On and Off State

bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

FEATURE SET (continued)

The performance of the internal oscillator depends on the tolerance of the 100-k ?resistor between RSOC (pin 33)and VSSA (pin 34).Choose a resistor with a tolerance of ±0.1%,and 50-ppm or better temperature drift.Place this resistor as close as possible to the bq20z80.If a 12-pF crystal is used,place it as close as possible to the XCK1(pin 34)and XCK2(pin 33)pins.If not properly implemented,the PCB layout in this area can degrade oscillator performance.The bq20z80pulls the PU pin high periodically (1s).Connect this pin to the PRES pin of the bq20z80via a resistor of approximately 5k ?.The bq20z80measures the PRES input during the PU-active period to determine its state.If PRES input is pulled to ground by external system,the bq20z80detects this as system present.

The bq20z80uses an integrating delta-sigma analog-to-digital converter (ADC)for current measurement,and a second delta-sigma ADC for individual cell and battery voltage,and temperature measurement.The integrating delta-sigma ADC measures the charge/discharge flow of the battery by measuring the voltage drop across a small-value sense resistor between the SR1and SR2pins.The integrating ADC measures bipolar signals from -0.25V to 0.25V.The bq20z80detects charge activity when V SR =V (SR1)-V (SR2)is positive and discharge activity when V SR =V (SR1)-V (SR2)is negative.The bq20z80continuously integrates the signal over time,using an internal counter.The fundamental rate of the counter is 0.65nVh.The bq20z80updates the individual series cell voltages through the bq29312A at one second intervals.The bq20z80configures the bq29312A to connect the selected cell,cell offset,or bq29312A VREF to the CELL pin of the bq29312A,which is required to be connected to VIN of the bq20z80.The internal ADC of the bq20z80measures the voltage,scales and calibrates it appropriately.This data is also used to calculate the impedance of the cell for the Impedance Track?gas-gauging.The bq20z80uses the SR1and SR2inputs to measure and calculate the battery charge and discharge current using a 5m ?to 20m ?typ.sense resistor.The bq20z80provides an auto-calibration feature to cancel the voltage offset error across SR1and SR2for maximum charge measurement accuracy.The bq20z80performs auto-calibration when the SMBus lines stay low continuously for a minimum of 5s.

The bq20z80TS1and TS2inputs,in conjunction with two identical NTC thermistors (default are Semitec 103AT),measure the battery environmental temperature.The bq20z80can also be configured to use its internal temperature sensor.

The bq20z80uses SMBus v1.1with Master Mode and package error checking (PEC)options per the SBS specification.

The bq20z80detects an SMBus off state when SMBC and SMBD are logic-low greater than an adjustable period of time.Clearing this state requires either SMBC or SMBD to transition high.Within 1ms,the communication bus is available.

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SBS and Dataflash Values

bq20z80-V102

SLUS681B–NOVEMBER2005–REVISED JANUARY2007 FEATURE SET(continued)

Table1.SBS COMMANDS

SBS Cmd Mode Name Format Size in Min Max Default Value Unit

Bytes Value Value

0x00R/W ManufacturerAccess hex20x00000xffff—

0x01R/W RemainingCapacityAlarm unsigned int2065535—mAh or

10mWh

0x02R/W RemainingTimeAlarm unsigned int2065535—min

0x03R/W BatteryMode hex20x00000xffff—

0x04R/W AtRate signed int2-3276832767—mA or10mW 0x05R AtRateTimeToFull unsigned int2065535—min

0x06R AtRateTimeToEmpty unsigned int2065535—min

0x07R AtRateOK unsigned int2065535—

0x08R Temperature unsigned int2065535—0.1°K

0x09R Voltage unsigned int2020000—mV

0x0a R Current signed int2-3276832767—mA

0x0b R AverageCurrent signed int2-3276832767—mA

0x0c R MaxError unsigned int10100—%

0x0d R RelativeStateOfCharge unsigned int10100—%

0x0e R AbsoluteStateOfCharge unsigned int10100—%

0x0f R RemainingCapacity unsigned int2065535—mAh or

10mWh

0x10R FullChargeCapacity unsigned int2065535—mAh or

10mWh

0x11R RunTimeToEmpty unsigned int2065535—min

0x12R AverageTimeToEmpty unsigned int2065535—min

0x13R AverageTimeToFull unsigned int2065535—min

0x14R ChargingCurrent unsigned int2065535—mA

0x15R ChargingVoltage unsigned int2065535—mV

0x16R BatteryStatus unsigned int20x00000xffff—

0x17R/W CycleCount unsigned int2065535—

0x18R/W DesignCapacity unsigned int2065535mAh or

10mWh

0x19R/W DesignVoltage unsigned int270001600014400mV

0x1a R/W SpecificationInfo unsigned int20x00000xffff0x0031

0x1b R/W ManufactureDate unsigned int20655350

0x1c R/W SerialNumber hex20x00000xffff0x0001

0x20R/W ManufacturerName String11+1——Texas Instruments ASCII

0x21R/W DeviceName String7+1——bq20z80ASCII

0x22R/W DeviceChemistry String4+1——LION ASCII

0x23R ManufacturerData String14+1———ASCII

0x2f R/W Authenticate String20+1———ASCII

0x3c R CellVoltage4unsigned int2065535mV

0x3d R CellVoltage3unsigned int2065535mV

0x3e R CellVoltage2unsigned int2065535mV

0x3f R CellVoltage1unsigned int2065535mV

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bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

Table 2.EXTENDED SBS COMMANDS

SBS Mode Name Format Size in Min Value Max Value Default Value Unit Cmd Bytes 0x45R AFEData String 11+1———ASCII

0x46R/W FETControl hex 10x000xff —0x4f R StateOfHealth unsigned int 10100—%0x50R SafetyAlert hex 20x00000xffff —0x51R SafetyStatus hex 20x00000xffff —0x52R PFAlert hex 20x00000xffff —0x53R PFStatus hex 20x00000xffff —0x54R OperationStatus hex 20x00000xffff —0x55R ChargingStatus hex 20x00000xffff —0x57R ResetData hex 20x00000xffff —0x58R WDResetData unsigned int 2065535—0x5a R PackVoltage unsigned int 2065535—

mV 0x5d R AverageVoltage unsigned int 20

65535

mV 0x60R/W UnSealKey hex 40x000000000xffffffff —0x62R/W PFKey hex 40x000000000xffffffff —0x63R/W AuthenKey3hex 40x000000000xffffffff —0x64R/W AuthenKey2hex 40x000000000xffffffff —0x65R/W AuthenKey1hex 40x000000000xffffffff —0x66R/W AuthenKey0hex 40x000000000xffffffff —0x70R/W ManufacturerInfo String 8+1———0x71R/W SenseResistor unsigned int 2065535—μ?

0x77R/W DataflashClass hex 20x00000xffff —0x78R/W DataFlashSubClass1hex 32———0x79R/W DataFlashSubClass2hex 32———0x7a R/W DataFlashSubClass3hex 32———0x7b R/W DataFlashSubClass4hex 32———0x7c R/W DataFlashSubClass5hex 32———0x7d R/W DataFlashSubClass6hex 32———0x7e R/W DataFlashSubClass7hex 32———0x7f

R/W

DataFlashSubClass8

hex

—

Table 3.DATAFLASH VALUES

Class Subclass Subclass Offset Name

Data Min Value Max Value Default Units ID Type Value 1st Level 0

Voltage

0COV Threshold U2370050004300mV Safety

2COV Time U10602Sec 3COV Recovery U2044003900mV 5COV Delta U1020020mV 6COV Temp.Hys U102501000.1°C 7POV Threshold U201800017500mV 9POV Time U10602Sec 10POV Recovery U201700016000mV 12CUV Threshold U2035002200mV 14CUV Time U10602Sec 15CUV Recovery U2036003000mV 17PUV Threshold U201600011000mV 19PUV Time U10602Sec 20

PUV Recovery

16000

12000

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bq20z80-V102

SLUS681B–NOVEMBER2005–REVISED JANUARY2007 Table3.DATAFLASH VALUES(continued)

Class Subclass Subclass Offset Name Data Min Value Max Value Default Units ID Type Value

1st Level1Current0OC(1st Tier)Chg U20200006000mA

Safety

2OC(1st Tier)Chg Time U10602sec

3OC Chg Recovery I2-10001000200mA

5OC(1st Tier)Dsg U20200006000mA

7OC(1st Tier)Dsg Time U10602sec

8OC Dsg Recovery U201000200mA

10OC(2nd Tier)Chg U20200008000mA

12OC(2nd Tier)Chg Time U10602Sec

13OC(2nd Tier)Dsg U20220008000mA

15OC(2nd Tier)Dsg Time U10602Sec

16Current Recovery Time U10608Sec

17AFE OC Dsg H10x000x1f0x12hex

18AFE OC Dsg Time H10x000x0f0x0f hex

19AFE OC Dsg Recovery U2101000100mA

21AFE SC Chg Cfg H10x000xff0x77hex

22AFE SC Dsg Cfg H10x000xff0x77hex

23AFE SC Recovery U202001mA

1st Level2Temperature0Over Temp Chg U2012005500.1°C Safety

2OT Chg Time U10602Sec

3OT Chg Recovery U2012005000.1°C

5Over Temp Dsg U2012006000.1°C

7OT Dsg Time U10602Sec

8OT Dsg Recovery U2012005500.1°C

1st Level3Host Comm0Host Watchdog Timeout U102550Sec

Safety

2nd Level16Voltage0SOV Threshold U202000018000mV

Safety

2SOV Time U10300Sec

3Cell Imbalance Current U102005mA

4Cell Imbalance Fail Voltage U2050001000mV

6Cell Imbalance Time U10300Sec

7Battery Rest Time U20655351800Sec

9PFIN Detect Time U10300Sec

2nd Level17Current0SOC Chg U203000010000mA

Safety

2SOC Chg Time U10300Sec

3SOC Dsg U203000010000mA

5SOC Dsg Time U10300Sec

2nd Level18Temperature0SOT Chg U2012006500.1°C Safety

2SOT Chg Time U10300Sec

3SOT Dsg U2012007500.1°C

5SOT Dsg Time U10300Sec

6Open Thermistor I2-10001200-3330.1°C

8Open Time I10300Sec

2nd Level19FET Verification0FET Fail Limit U2050020mA

Safety

2FET Fail Time U10300Sec

2nd Level20AFE Verification0AFE Check Time U102550Sec

Safety

1AFE Fail Limit U1025510cnt

2AFE Fail Recovery Time U1025520Sec

3AFE Init Retry Limit U102556num

4AFE Init Limit U1025520cnt

2nd Level21Fuse Verification0Fuse Fail Limit U20202mA

Safety

2Fuse Fail Time U10300Sec

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bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

Table 3.DATAFLASH VALUES (continued)

Class Subclass Subclass Offset Name

Data Min Value Max Value Default Units ID Type Value Charge 32

Charge Inhibit 0Chg Inhibit Temp Low I2-400120000.1°C Control

Cfg

2Chg Inhibit Temp High I2-40012004500.1°C 4

Temp Hys I20100100.1°C Charge 33

Pre-Charge Cfg

0Pre-chg Current U202000250mA Control

2Pre-chg Temp I2-40012001200.1°C 4Pre-chg Voltage U20200003000mV 6

Recovery Voltage U20200003100mV Charge 34

Fast Charge Cfg

0Fast Charge Current U20100004000mA Control

2Charging Voltage U202000016800mV 4Over Charging Voltage U202000500mV 6Delta Temp I20500500.1°C 8Suspend Low Temp I2-4001200-500.1°C 10

Suspend High Temp I2-40012005500.1°C Charge 35

Pulse Charge 0Turn ON Voltage U2050004150mV Control

Cfg

2Turn OFF Voltage U2050004250mV 4Max ON Pulse Time U10240240S/45Min OFF Pulse Time U102400S/46

Max OFF Voltage U2050004270mV Charge 36

Termination Cfg.

0Maintenance Current U2010000mA Control

2Taper Current U201000250mA 6Termination Voltage U201000300mV 8Current Taper Window U106040Sec 9TCA Set %I1-1100-1%10TCA Clear %I1-110095%11FC Set %I1-1100-1%12

FC Clear %I1-110098%Charge 37Cell Balancing 0Min Cell Deviation U20655351750Sec/mAH Control Cfg

Charge 38

Charging Faults

0Over Charging Voltage U203000500mV Control

2Over Charging Volt Time U10602Sec 3Over Charging Current U202000500mA 5Over Charging Curr Time U10602Sec 6Over Charging Curr Recov U202000100mA 8Depleted Voltage U20160008000mV 10Depleted Voltage Time U10602Sec 11Depleted Recovery U20160008500mV 13Over Charge Capacity U204000300mAh 15Over Charge Recovery U201002mAh 17FC-MTO U206553510800Sec 19PC-MTO U20655353600Sec

Charge Fault Cfg

0x00

0xff

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bq20z80-V102

SLUS681B–NOVEMBER2005–REVISED JANUARY2007 Table3.DATAFLASH VALUES(continued)

Class Subclass Subclass Offset Name Data Min Value Max Value Default Units ID Type Value

SBS48Data0Rem Cap Alarm U20700300mAh Configuration

2Rem Time Alarm U203010Min

4Init Battery Mode H20x00000xffff0x0081hex

6Design Voltage U270001800014400mV

8Spec Info H20x00000xffff0x0031hex

10Manuf Date U20653550date

12Ser.Num.H20x00000xffff0x0001hex

14Cycle Count U20653550cnt

16CC Threshold I2100327674400mAh

18CC%U1010090%

19CF MaxError Limit U10100100%

20Design Capacity U20653554400mAh

22Design Energy U2065355633610mWh

24Manuf Name S12--Texas Inst.

36Device Name S8--bq20z80

44Device Chemistry S5--LION

SBS49Configuration0TDA Set%I1-11006% Configuration

1TDA Clear%I1-11008%

2FD Set%I1-11002%

3FD Clear%I1-11005%

4TDA Set Volt Threshold U20168005000mV

6TDA Set Volt Time U10605Sec

7TDA Clear Volt U20168005500mV

9FD Set Volt Threshold U20168005000mV

11FD Volt Time U10605Sec

12FD Clear Volt U20168005500mV System Data56Manufacturer0Pack Lot Code H20x00000xffff0x0000

Data

2PCB Lot Code H20x00000xffff0x0000

4Firmware Version H20x00000xffff0x0000

6Hardware Revision H20x00000xffff0x0000

8Cell Revision H20x00000xffff0x0000

System https://www.doczj.com/doc/9814331636.html, S9--12345678

Info

System Data59LifeTime Data0Lifetime Max Temp I2014003000.1°C

2Lifetime Min Temp I2-60014002000.1°C

4Lifetime Max Cell Voltage U20655353500mV

6Lifetime Min Cell Voltage U20655353200mV

8Lifetime Max Pack Voltage U206553514000mV

10Lifetime Min Pack Voltage U206553512800mV

12Lifetime Max Chg Current I2-32768327671500mA

14Lifetime Max Dsg Current I2-3276832767-3000mA

16Lifetime Max Chg Power I2-3276832767150010mW

18Lifetime Max Dsg Power I2-3276832767-150010mW

22Life Max AvgDsg Cur I2-3276832767-1000mA

26Life Max AvgDsg Pow I2-3276832767-150010mW

28Lifetime Avg Temp I2014002500.1°C System Data60LifeTime Temp0LT Temp Samples U401400000000num Samples

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bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

Table 3.DATAFLASH VALUES (continued)

Class Subclass Subclass Offset Name

Data Min Value Max Value Default Units

ID Type Value Configuration

Registers

0Operation Cfg A H20x00000xffff 0x0F292Operation Cfg B H20x00000xffff 0x64404Permanent Fail Cfg H20x00000xffff 0x00006

Non-Removable Cfg H20x00000xffff 0x0000hex LED Support

LED Cfg

0LED Flash Rate U2065535512500μs 2LED Blink Rate U20655351024500μs 4LED Delay U2165535100500μs 6LED Hold Time U102554s 7CHG Flash Alarm I1-110110%8CHG Thresh 1I1-11010%9CHG Thresh 2I1-110120%10CHG Thresh 3I1-110140%11CHG Thresh 4I1-110160%12CHG Thresh 5I1-110180%13DSG Flash Alarm I1-110110%14DSG Thresh 1I1-11010%15DSG Thresh 2I1-110120%16DSG Thresh 3I1-110140%17DSG Thresh 4I1-110160%18

DSG Thresh 5

I1-110160%Power

Power

0Flash Update OK Voltage U26000200007500mV 2Shutdown Voltage U25000200007000mV 4Shutdown Time U106010Sec 5Charger Present U202300012000mV 7Sleep Current U2010010mA 9Bus Low Time U102555Sec 10Cal Inhibit Temp Low I2-4001200500.1°C 12Cal Inhibit Temp High I2-40012004500.1°C 14Sleep Voltage Time U101005Sec 15

Sleep Current Time U1025520Sec Gas Gauging

IT Cfg

0Load Select U102553num 1Load Mode U102550num 45Term Voltage I2-327683276712000mV 60User Rate-mA I2-9000-20000mA 62User Rate-mW I2-14000-3000010mW 64Reserve Cap-mAh I2090000mAh 66

Reserve Cap-mWh I2014000010mWh Gas Gauging

Current 0Dsg Current Threshold U202000100mA Thresholds

2Chg Current Threshold U20200050mA 4Quit Current U20100010mA 6Dsg Relax Time U102551Sec 7

Chg Relax Time

255

Sec 16

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bq20z80-V102

SLUS681B–NOVEMBER2005–REVISED JANUARY2007 Table3.DATAFLASH VALUES(continued)

Class Subclass Subclass Offset Name Data Min Value Max Value Default Units ID Type Value

Gas Gauging82State0Qmax Cell0U20655354400mAh

2Qmax Cell1U20655354400mAh

4Qmax Cell2U20655354400mAh

6Qmax Cell3U20655354400mAh

8Qmax Pack U20655354400mAh

12Update Status H10x000x060x00num

21Avg I Last Run I2-3276832767-2000mA

23Avg P Last Run I2-3276832767-302210mW

25Delta Voltage I2-32768327670mV

Ra Table88R_a00Cell0R_a flag H20x00000xffff0xff55

2Cell0R_a0I2-3276832767160m?at0°C

4Cell0R_a1I2-3276832767166m?at0°C

6Cell0R_a2I2-3276832767153m?at0°C

8Cell0R_a3I2-3276832767151m?at0°C

10Cell0R_a4I2-3276832767145m?at0°C

12Cell0R_a5I2-3276832767152m?at0°C

14Cell0R_a6I2-3276832767176m?at0°C

16Cell0R_a7I2-3276832767204m?at0°C

18Cell0R_a8I2-3276832767222m?at0°C

20Cell0R_a9I2-3276832767254m?at0°C

22Cell0R_a10I2-3276832767315m?at0°C

24Cell0R_a11I2-3276832767437m?at0°C

26Cell0R_a12I2-3276832767651m?at0°C

28Cell0R_a13I2-32768327671001m?at0°C

30Cell0R_a14I2-32768327671458m?at0°C Ra Table89R_a10Cell1R_a flag H20x00000xffff0xff55

2Cell1R_a0I2-3276832767160m?at0°C

4Cell1R_a1I2-3276832767166m?at0°C

6Cell1R_a2I2-3276832767153m?at0°C

8Cell1R_a3I2-3276832767151m?at0°C

10Cell1R_a4I2-3276832767145m?at0°C

12Cell1R_a5I2-3276832767152m?at0°C

14Cell1R_a6I2-3276832767176m?at0°C

16Cell1R_a7I2-3276832767204m?at0°C

18Cell1R_a8I2-3276832767222m?at0°C

20Cell1R_a9I2-3276832767254m?at0°C

22Cell1R_a10I2-3276832767315m?at0°C

24Cell1R_a11I2-3276832767437m?at0°C

26Cell1R_a12I2-3276832767651m?at0°C

28Cell1R_a13I2-32768327671001m?at0°C

30Cell1R_a14I2-32768327671458m?at0°C Ra Table90R_a20Cell2R_a flag H20x00000xffff0xff55

2Cell2R_a0I2-3276832767160m?at0°C

4Cell2R_a1I2-3276832767166m?at0°C

6Cell2R_a2I2-3276832767153m?at0°C

8Cell2R_a3I2-3276832767151m?at0°C

10Cell2R_a4I2-3276832767145m?at0°C

12Cell2R_a5I2-3276832767152m?at0°C

14Cell2R_a6I2-3276832767176m?at0°C

16Cell2R_a7I2-3276832767204m?at0°C

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bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

Table 3.DATAFLASH VALUES (continued)

Class

Subclass Subclass

Offset Name Data Min Value Max Value Default Units ID

Type Value 18Cell2R_a 8I2-3276832767222m ?at 0°C 20Cell2R_a 9I2-3276832767254m ?at 0°C 22Cell2R_a 10I2-3276832767315m ?at 0°C 24Cell2R_a 11I2-3276832767437m ?at 0°C 26Cell2R_a 12I2-3276832767651m ?at 0°C 28Cell2R_a 13I2-32768327671001m ?at 0°C 30

Cell2R_a 14I2-32768327671458m ?at 0°C

Ra Table

R_a3

0Cell3R_a flag H20x00000xffff 0xff552Cell3R_a 0I2-3276832767160m ?at 0°C 4Cell3R_a 1I2-3276832767166m ?at 0°C 6Cell3R_a 2I2-3276832767153m ?at 0°C 8Cell3R_a 3I2-3276832767151m ?at 0°C 10Cell3R_a 4I2-3276832767145m ?at 0°C 12Cell3R_a 5I2-3276832767152m ?at 0°C 14Cell3R_a 6I2-3276832767176m ?at 0°C 16Cell3R_a 7I2-3276832767204m ?at 0°C 18Cell3R_a 8I2-3276832767222m ?at 0°C 20Cell3R_a 9I2-3276832767254m ?at 0°C 22Cell3R_a 10I2-3276832767315m ?at 0°C 24Cell3R_a 11I2-3276832767437m ?at 0°C 26Cell3R_a 12I2-3276832767651m ?at 0°C 28Cell3R_a 13I2-32768327671001m ?at 0°C 30

Cell3R_a 14I2-32768327671458m ?at 0°C Ra Table

R_a0x

0xCell0R_a flag H20x00000xffff 0xffff 2xCell0R_a 0I2-3276832767160m ?at 0°C 4xCell0R_a 1I2-3276832767166m ?at 0°C 6xCell0R_a 2I2-3276832767153m ?at 0°C 8xCell0R_a 3I2-3276832767151m ?at 0°C 10xCell0R_a 4I2-3276832767145m ?at 0°C 12xCell0R_a 5I2-3276832767152m ?at 0°C 14xCell0R_a 6I2-3276832767176m ?at 0°C 16xCell0R_a 7I2-3276832767204m ?at 0°C 18xCell0R_a 8I2-3276832767222m ?at 0°C 20xCell0R_a 9I2-3276832767254m ?at 0°C 22xCell0R_a 10I2-3276832767315m ?at 0°C 24xCell0R_a 11I2-3276832767437m ?at 0°C 26xCell0R_a 12I2-3276832767651m ?at 0°C 28xCell0R_a 13I2-32768327671001m ?at 0°C 30

xCell0R_a 14I2-32768327671458m ?at 0°C Ra Table

R_a1x

0xCell1R_a flag H20x00000xffff 0xffff 2xCell1R_a 0I2-3276832767160m ?at 0°C 4xCell1R_a 1I2-3276832767166m ?at 0°C 6xCell1R_a 2I2-3276832767153m ?at 0°C 8xCell1R_a 3I2-3276832767151m ?at 0°C 10xCell1R_a 4I2-3276832767145m ?at 0°C 12xCell1R_a 5I2-3276832767152m ?at 0°C 14xCell1R_a 6I2-3276832767176m ?at 0°C 16xCell1R_a 7I2-3276832767204m ?at 0°C 18xCell1R_a 8I2-3276832767222m ?at 0°C 20

xCell1R_a 9

-32768

32767

254

m ?at 0°C 18

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bq20z80-V102

SLUS681B–NOVEMBER2005–REVISED JANUARY2007 Table3.DATAFLASH VALUES(continued)

Class Subclass Subclass Offset Name Data Min Value Max Value Default Units ID Type Value

22xCell1R_a10I2-3276832767315m?at0°C

24xCell1R_a11I2-3276832767437m?at0°C

26xCell1R_a12I2-3276832767651m?at0°C

28xCell1R_a13I2-32768327671001m?at0°C

30xCell1R_a14I2-32768327671458m?at0°C Ra Table94R_a2x0xCell2R_a flag H20x00000xffff0xffff

2xCell2R_a0I2-3276832767160m?at0°C

4xCell2R_a1I2-3276832767166m?at0°C

6xCell2R_a2I2-3276832767153m?at0°C

8xCell2R_a3I2-3276832767151m?at0°C

10xCell2R_a4I2-3276832767145m?at0°C

12xCell2R_a5I2-3276832767152m?at0°C

14xCell2R_a6I2-3276832767176m?at0°C

16xCell2R_a7I2-3276832767204m?at0°C

18xCell2R_a8I2-3276832767222m?at0°C

20xCell2R_a9I2-3276832767254m?at0°C

22xCell2R_a10I2-3276832767315m?at0°C

24xCell2R_a11I2-3276832767437m?at0°C

26xCell2R_a12I2-3276832767651m?at0°C

28xCell2R_a13I2-32768327671001m?at0°C

30xCell2R_a14I2-32768327671458m?at0°C Ra Table95R_a3x0xCell3R_a flag H20x00000xffff0xffff

2xCell3R_a0I2-3276832767160m?at0°C

4xCell3R_a1I2-3276832767166m?at0°C

6xCell3R_a2I2-3276832767153m?at0°C

8xCell3R_a3I2-3276832767151m?at0°C

10xCell3R_a4I2-3276832767145m?at0°C

12xCell3R_a5I2-3276832767152m?at0°C

14xCell3R_a6I2-3276832767176m?at0°C

16xCell3R_a7I2-3276832767204m?at0°C

18xCell3R_a8I2-3276832767222m?at0°C

20xCell3R_a9I2-3276832767254m?at0°C

22xCell3R_a10I2-3276832767315m?at0°C

24xCell3R_a11I2-3276832767437m?at0°C

26xCell3R_a12I2-3276832767651m?at0°C

28xCell3R_a13I2-32768327671001m?at0°C

30xCell3R_a14I2-32768327671458m?at0°C PF Status96Device Status0PF Flags1H20x00000xffff0x0000

Data

2Fuse Flag H20x00000xffff0x0000

4PF Voltage U20655350mV

6PF C4Voltage U2099990mV

8PF C3Voltage U2099990mV

10PF C2Voltage U2099990mV

12PF C1Voltage U2099990mV

14PF Current I2-32768327670mA

16PF Temperature U20999900.1°K

18PF Batt Stat H20x00000xffff0x0000

20PF RC-mAh U20655350mAh

22PF RC-10mWh U2065535010mWh

24PF Chg Status H20x00000xffff0x0000

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bq20z80-V102

SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007

Table 3.DATAFLASH VALUES (continued)

Class

Subclass Subclass

Offset Name

Data Min Value Max Value Default Units

Type Value 26PF Safety Status H20x00000xffff 0x000028

PF Flags 2H20x00000xffff 0x0000PF Status

AFE Regs

0AFE Status H10x000xffff 0x001AFE Output H10x000xffff 0x002AFE State H10x000xffff 0x003AFE Function H10x000xffff 0x004AFE Cell Select H10x000xffff 0x005AFE OLV H10x000xffff 0x006AFE OLT H10x000xffff 0x007AFE SCC H10x000xffff 0x008

AFE SCD H10x00

0xffff

0x00Calibration

104

Data

0CC Gain F4- 1.00E+128

0.471num 1.00E+128

4CC Delta F4- 1.00E+128

140500num 1.00E+1288Ref Voltage I20327672450050μV 10AFE Corr U20655351288num 12AFE Pack Gain U206553530625num 14CC Offset I2-3276832767-12250num 16Board Offset I1-1281270num 17Int Temp Offset I1-1281270num 18Ext1Temp Offset I1-1281270num 19

Ext2Temp Offset I1-1281270num Calibration

105

Config

0CC Current U20655353000mA 2Voltage Signal U206553516800mV 4Temp Signal U206553529800.1°K 6CC Offset Time U2065535250ms 8ADC Offset Time U206553532ms 10CC Gain Time U2065535250ms 12Voltage Time U20655351984ms 14Temperature Time U206553532ms 17

Cal Mode Timeout U206553538400sec/128Calibration

106

Temp Model

0Ext Coef 1I2-3276832767-28285Sec 2Ext Coef 2I2-327683276720848Sec 4Ext Coef 3I2-3276832767-7537Sec 6Ext Coef 4I2-32768327674012Sec 8Ext Min AD I2-32768327670Sec 10Ext Max Temp I2-32768327674012Sec 12Int Coef 1I2-32768327670Sec 14Int Coef 2I2-32768327670Sec 16Int Coef 3I2-3276832767-11136Sec 18Int Coef 4I2-32768327675754Sec 20Int Min AD I2-32768327670Sec 22

Int Max Temp I2-32768327675754Sec Calibration

107

Current

0Filter U10255239mA 1Deadband U102553mA 2CC Deadband U1025534nV+3CC Max Deadband U102555nV+4CC Deadband Sample U2065535256num 6

CC Max Offset Sample

65535

num 20

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