ULN2803A资料

2803 THRU 2824HIGH-VOLTAGE,HIGH-CURRENT DARLINGTON ARRAYSTest Applicable Limits Characteristic Symbol Fig.DevicesTest Conditions Min.Typ.Max.Units Output Leakage CurrentI CEX1A All V CE = 50 V, T A = 25°C —< 150µA V CE = 50 V, T A = 70°C—< 1100µA 1BULx2804xV CE = 50 V, T A = 70°C, V IN = 1.0 V —< 5500µA Collector-Emitter V CE(SAT)2AllI C = 100 mA, I B = 250 µA —0.9 1.1V Saturation Voltagel C = 200 mA, I B = 350 µA — 1.1 1.3V I C = 350 mA, I B = 500 µA— 1.3 1.6V Input CurrentI IN(ON)3ULx2803x V IN = 3.85 V —0.93 1.35mA ULx2804xV IN = 5.0 V —0.350.5mA V IN = 12 V— 1.0 1.45mA I IN(OFF)4All l C = 500 µA, T A = 70°C 5065—µA Input VoltageV IN(ON)5ULx2803xV CE = 2.0 V, l C = 200 mA —— 2.4V V CE = 2.0 V, I C = 250 mA —— 2.7V V CE = 2.0 V, l C = 300 mA—— 3.0V ULx2804xV CE = 2.0 V, l C = 125 mA —— 5.0V V CE = 2.0 V, l C = 200 mA —— 6.0V V CE = 2.0 V, I C = 275 mA ——7.0V V CE = 2.0 V, l C = 350 mA——8.0V Input Capacitance C IN —All —1525pF Turn-On Delay t PLH 8All 0.5 E IN to 0.5 E OUT —0.25 1.0µs Turn-Off Delay t PHL 8All 0.5 E IN to 0.5 E OUT —0.25 1.0µs Clamp Diode I R 6All V R = 50 V, T A = 25°C ——50µA Leakage Current V R = 50 V, T A = 70°C ——100µA Clamp Diode V F7AllI F = 350 mA—1.72.0VForward VoltageComplete part number includes prefix to operating temperature range: ULN = -20°C to +85°C, ULQ = -40°C to +85°C and a suffix to identify package style: A = DIP, LW = SOIC.Types ULx2803A, ULx2803LW, ULx2804A, and ULx2804LWELECTRICAL CHARACTERISTICS at +25°C (unless otherwise noted).2803 THRU 2824HIGH-VOLTAGE,HIGH-CURRENTDARLINGTON ARRAYS115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-5000Test Applicable Limits Characteristic Symbol Fig.DevicesTest Conditions Min.Typ.Max.Units Output Leakage CurrentI CEX1A All V CE = 95 V, T A = 25°C —< 150µA V CE = 95 V, T A = 70°C—< 1100µA 1BULx2824xV CE = 95 V, T A = 70°C, V IN = 1.0 V —< 5500µA Collector-Emitter V CE(SAT)2AllI C = 100 mA, I B = 250 µA —0.9 1.1V Saturation Voltagel C = 200 mA, I B = 350 µA — 1.1 1.3V I C = 350 mA, I B = 500 µA— 1.3 1.6V Input CurrentI IN(ON)3ULx2823x V IN = 3.85 V —0.93 1.35mA ULx2824xV IN = 5.0 V —0.350.5mA V IN = 12 V— 1.0 1.45mA I IN(OFF)4All l C = 500 µA, T A = 70°C 5065—µA Input VoltageV IN(ON)5ULx2823xV CE = 2.0 V, l C = 200 mA —— 2.4V V CE = 2.0 V, I C = 250 mA —— 2.7V V CE = 2.0 V, l C = 300 mA—— 3.0V ULx2824xV CE = 2.0 V, l C = 125 mA —— 5.0V V CE = 2.0 V, l C = 200 mA —— 6.0V V CE = 2.0 V, I C = 275 mA ——7.0V V CE = 2.0 V, l C = 350 mA——8.0V Input Capacitance C IN —All —1525pF Turn-On Delay t PLH 8All 0.5 E IN to 0.5 E OUT —0.25 1.0µs Turn-Off Delay t PHL 8All 0.5 E IN to 0.5 E OUT —0.25 1.0µs Clamp Diode I R 6All V R = 95 V, T A = 25°C ——50µA Leakage Current V R = 95 V, T A = 70°C ——100µA Clamp Diode V F7AllI F = 350 mA—1.72.0VForward VoltageComplete part number includes prefix to operating temperature range: ULN = -20°C to +85°C, ULQ = -40°C to +85°Cand a suffix to identify package style: A = DIP, LW = SOIC. Note that the ULQ2823LW and ULQ2824LW are not presently available.Types ULx2823A, ULN2823LW, ULx2824A, and ULN2824LWELECTRICAL CHARACTERISTICS at +25°C (unless otherwise noted).2803 THRU 2824HIGH-VOLTAGE,HIGH-CURRENTDARLINGTON ARRAYS115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-500020Dwg. GP-070-44010080DUTY CYCLE IN PER CENT0600400O U T P U T C U R R E N T I N m A /C H A N N E L2006020Dwg. GP-070-34010080DUTY CYCLE IN PER CENT0600400O U T P U T C U R R E N T I N m A /C H A N N E L20060ALLOWABLE COLLECTOR CURRENT AS A FUNCTION OF DUTY CYCLEULx28xxLW20Dwg. GP-070-24010080DUTY CYCLE IN PER CENT 0600400O U T P U T C U R R E N T I N m A /C H A N N E L2006020Dwg. GP-070-14010080DUTY CYCLE IN PER CENT 0600400O U T P U T C U R R E N T I N m A /C H A N N E L20060ALLOWABLE COLLECTOR CURRENT AS A FUNCTION OF DUTY CYCLEULx28xxAx = Characters to identify specific device. Specification shown applies to family of devices with remaining digits as shown.2803 THRU 2824HIGH-VOLTAGE,HIGH-CURRENT DARLINGTON ARRAYSINPUT CURRENT AS AFUNCTION OF INPUT VOLTAGEULx28x3xDwg. GP-069INPUT VOLTAGE2.52.0I N P U T C U R R E N T I N m A — II N1.00.51.50.5Dwg. GP-0671.01.5COLLECTOR-EMITTER SATURATION VOLTAGE0600400C O L L E C T O R C U R R E N T I N m A200COLLECTOR CURRENT AS A FUNCTION OF INPUT CURRENT200Dwg. GP-068400INPUT CURRENT IN µA0600400C O L L E C T O R C U R R E N T I N m A200ULx28x4x6Dwg. GP-069-11012INPUT VOLTAGE52.0I N P U T C U R R E N T I N m A — I I N1.00.51.587911SATURATION VOLTAGE AS A FUNCTION OFCOLLECTOR CURRENTx = Characters to identify specific device. Characteristic shown applies to family of devices with remaining digits as shown.2803 THRU 2824HIGH-VOLTAGE,HIGH-CURRENTDARLINGTON ARRAYS115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-5000PACKAGE DESIGNATOR “A” DIMENSIONSDimensions in Inches (controlling dimensions)Dimensions in Millimeters (for reference only)NOTES:1.Exact body and lead configuration at vendor’s option within limits shown.2.Lead spacing tolerance is non-cumulative.3.Lead thickness is measured at seating plane or below.Dwg. MA-001-18A in19Dwg. MA-001-18A mm192803THRU2824HIGH-VOLTAGE,HIGH-CURRENT DARLINGTON ARRAYS PACKAGE DESIGNATOR “LW” DIMENSIONSDimensions in Inches(for reference only)Dimensions in Millimeters(controlling dimensions)Dwg. MA-008-18A mm1.27BSCDwg. MA-008-18A inBSCNOTES:1.Exact body and lead configuration at vendor’s option within limits shown.2.Lead spacing tolerance is non-cumulative.2803 THRU 2824HIGH-VOLTAGE,HIGH-CURRENTDARLINGTON ARRAYS115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-5000The products described here are manufactured under one or more U.S. patents or U.S. patents pending.Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, ormanufacturability of its products. Before placing an order, the user is cautioned to verify that the information being relied upon is current.Allegro products are not authorized for use as critical components in life-support devices or systems without express written approval.The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsi-bility for its use; nor for any infringement of patents or other rights of third parties which may result from its use.。

6
V
7
V
8
V
2.4
V
–2
25 pF –
1
µs –
1
µs –
50 µA 6 100 µA 6
2
V7
3/8
ULN2801A - ULN2802A - ULN2803A - ULN2804A - ULN2805A
TEST CIRCUITS Figure 1a.
Figure 1b.
Figure 2.
Figure 3.
MAX. 0.065
0.915
0.280 0.155 0.063
7/8
ULN2801A - ULN2802A - ULN2803A - ULN2804A - ULN2805A
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rig hts of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics.

uln2803工作原理
ULN2803是一种8位继电器驱动器芯片。

它的工作原理如下：
1. 输入信号：ULN2803芯片有8个输入引脚，用于接收外部
输入信号。

当输入信号为高电平时，对应的输出引脚会被拉低。

当输入信号为低电平时，对应的输出引脚会被拉高。

2. 输出驱动能力：ULN2803芯片的每个输出引脚都能驱动高
达500mA的电流。

这使得它在控制各种继电器、电磁阀等高
功率负载时非常有效。

3. 电流限制：ULN2803芯片内部集成了输入端的稳定电流源，用于控制每个输出引脚的电流。

这样可以保证输出的电流在适当范围内，避免过大电流导致芯片损坏。

4. 抑制反馈：ULN2803芯片还内部具有抑制反馈电路，以防
止开关继电器等负载产生过多的电磁干扰。

总的来说，ULN2803芯片通过接收外部输入信号，控制对应
输出引脚的电平状态，从而实现对启动高功率负载（如继电器）的控制。

它具有较高的驱动能力和稳定性，被广泛用于自动化控制、电子设备等领域。

PACKAGING INFORMATIONOrderable Device Status (1)Package Type Package Drawing Pins Package Qty Eco Plan (2)Lead/Ball Finish MSL Peak Temp (3)ULN2803ADW ACTIVE SOIC DW 1840Green (RoHS &no Sb/Br)CU NIPDAU Level-2-260C-1YEAR ULN2803ADWG4ACTIVE SOIC DW 1840Green (RoHS &no Sb/Br)CU NIPDAU Level-2-260C-1YEAR ULN2803ADWR ACTIVE SOIC DW 182000Green (RoHS &no Sb/Br)CU NIPDAU Level-2-260C-1YEAR ULN2803ADWRG4ACTIVE SOIC DW 182000Green (RoHS &no Sb/Br)CU NIPDAU Level-2-260C-1YEAR ULN2803AN ACTIVE PDIP N 1820Pb-Free (RoHS)CU NIPDAU N /A for Pkg Type ULN2803ANE4ACTIVEPDIPN1820Pb-Free (RoHS)CU NIPDAUN /A for Pkg Type(1)The marketing status values are defined as follows:ACTIVE:Product device recommended for new designs.LIFEBUY:TI has announced that the device will be discontinued,and a lifetime-buy period is in effect.NRND:Not recommended for new designs.Device is in production to support existing customers,but TI does not recommend using this part in a new design.PREVIEW:Device has been announced but is not in production.Samples may or may not be available.OBSOLETE:TI has discontinued the production of the device.(2)Eco Plan -The planned eco-friendly classification:Pb-Free (RoHS),Pb-Free (RoHS Exempt),or Green (RoHS &no Sb/Br)-please check /productcontent for the latest availability information and additional product content details.TBD:The Pb-Free/Green conversion plan has not been defined.Pb-Free (RoHS):TI's terms "Lead-Free"or "Pb-Free"mean semiconductor products that are compatible with the current RoHS requirements for all 6substances,including the requirement that lead not exceed 0.1%by weight in homogeneous materials.Where designed to be soldered at high temperatures,TI Pb-Free products are suitable for use in specified lead-free processes.Pb-Free (RoHS Exempt):This component has a RoHS exemption for either 1)lead-based flip-chip solder bumps used between the die and package,or 2)lead-based die adhesive used between the die and leadframe.The component is otherwise considered Pb-Free (RoHS compatible)as defined above.Green (RoHS &no Sb/Br):TI defines "Green"to mean Pb-Free (RoHS compatible),and free of Bromine (Br)and Antimony (Sb)based flame retardants (Br or Sb do not exceed 0.1%by weight in homogeneous material)(3)MSL,PeakTemp.--The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications,and peak solder temperature.Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.TI bases its knowledge and belief on information provided by third parties,and makes no representation or warranty as to the accuracy of such information.Efforts are underway to better integrate information from third parties.TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.TI and TI suppliers consider certain information to be proprietary,and thus CAS numbers and other limited information may not be available for release.In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s)at issue in this document sold by TI to Customer on an annual basis.PACKAGE OPTION ADDENDUM5-Feb-2007Addendum-Page 1元器件交易网IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,enhancements, improvements, and other changes to its products and services at any time and todiscontinue any product or service without notice. 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