FM2113(单节锂电池保护IC)

HY2113规格书1节锂离子/锂聚合物电池保护IC .目录概述1. (5)特点2. (5)应用3. (5)方框图4. (6)订购信息5. (6)产品目录6. (7)电气参数选择6.1. (7)6.2. (8)延迟时间代码－延迟时间参数选择6.3. (9)特性代码－其它功能选择封装、脚位及标记信息7. (9)绝对最大额定值8. (11).电气特性9. (12)电气参数（延迟时间除外）9.1. (12)9.2. (13)延迟时间参数电池保护IC应用电路示例10. (14)工作说明11. (15)正常工作状态11.1. (15)11.2. (15)过充电状态11.3. (15)过放电状态11.4. (16)放电过流状态（放电过流检测功能和负载短路检测功能）11.5. (16)充电过流状态11.6. (17)向0V电池充电功能（允许）11.7. (17)向0V电池充电功能（禁止）特性（典型数据）12. (18)封装信息13. (21)DFN-6L 封装13.1. (21)13.2. (22)SOT-23-6封装14. (23)修订记录.注意：1、本说明书中的内容，随着产品的改进，有可能不经过预告而更改。

请客户及时到本公司网站下载更新。

2、本规格书中的图形、应用电路等，因第三方工业所有权引发的问题，本公司不承担其责任。

3、本产品在单独应用的情况下，本公司保证它的性能、典型应用和功能符合说明书中的条件。

当使用在客户的产品或设备中，以上条件我们不作保证，建议客户做充分的评估和测试。

4、请注意输入电压、输出电压、负载电流的使用条件，使IC内的功耗不超过封装的容许功耗。

对于客户在超出说明书中规定额定值使用产品，即使是瞬间的使用，由此所造成的损失，本公司不承担任何责任。

5、本产品虽内置防静电保护电路，但请不要施加超过保护电路性能的过大静电。

6、本规格书中的产品，未经书面许可，不可使用在要求高可靠性的电路中。

例如健康医疗器械、防灾器械、车辆器械、车载器械及航空器械等对人体产生影响的器械或装置，不得作为其部件使用。

MITSUMI ()HE jin hui 135******** 锂离子电池充电控制用（1~2节电池用）本IC 是锂离子电池充电控制用IC ，只用本IC 就可进行稳流、稳压充电，同时是一种内置预充电、过充电定时器、电池温度检测功能等保护电路的单片充电IC 。

本IC 在以前充电用的MM1332、MM1333的基础上，增加了上述功能。

(1) 充电电压精度(Ta = 0°C ~ +50°C) ±30mV/节(2) 消耗电流5mA 典型值(3) 预充电功能(4) 再次充电功能(5) 充电超时定时器(6) 电池温度检测功能(7) 适配器（初级）异常检测功能(8) LED 驱动器（R 、G 端子）(9) 备有1节或2节电池TSOP-24A锂离子电池充电控制用MITSUMI锂离子电池充电控制用（1~2节电池用）TSOP-24A注：上图是典型的应用实例参考，对因使用这些电路所造成的损害或对第三者工业所有权的侵犯，本公司不承担任何责任。

3509633055MITSUMI锂离子电池充电控制用（1~2节电池用）1注1：电流限制值1、2及满充电检测规定使用电流检测电阻上的电压降的对应值。

注2：如本IC损坏，控制失效时，不能保证安全。

请用本IC以外的装置来加以保护。

注3：温度检测用B常数3435（石冢电子公司产品10KC15-1608）的设定值。

注4：OSC部分的电容器请使用温度特性好的元件。

电容器的特性差异会造成定时器的误差。

注5：对过放电电池，用1mA电流充电14秒，在此期间不转换到预充电状态时，本IC将判定该电池异常。

OSC CR设定参考资料(1) OSC CR－振荡周期T一览表实例(2)各定时器的时间1基本功能•稳压/稳流控制充电•满充电检测2保护功能• AC适配器/电池异常时的保护•利用电池温度监视功能，工作异常时进行保护•利用时间限制功能，工作异常时进行保护3显示功能•显示正常充电结束状态的绿色LED连续点亮•显示正常充电工作状态的红色LED连续点亮•显示检测到异常时充电禁止的红色LED闪亮•限时用内部定时器的工作状态检查4强制停止功能•通过RESET端子、CHGSW端子控制停止充电5恢复充电功能•通过满充电检测后的电池电压降的检测进行重新充电•通过AC适配器断开后的再连接进行重新充电•通过电池断开后的再连接进行重新充电•通过解除强制停止工作进行重新充电说明1.充电动作1.1充电开始•充电开始时，在以下场合充电处于禁止状态。

单节锂电池保护解决方案(3)CSS-3---单节电池保护解决方案引言：前面两节分别介绍了PCM的几种方案，本节聚焦于PCM 的性能评估以及可能遇到的问题优化。

1. 功率（MOSFET）的性能要求离子电池容量从早期的600mAh、1000mAh到现在已经达到6000mAh、10000mAh。

为了实现更快的充电速度和更短的充电时间，通常采用增加（电流）和大电流充电的快充技术。

大电流充电对电池组中的功率MOSFET提出了更高的技术要求。

此外在生产线和使用过程中，对大容量（锂离子电池）有一些特定的技术要求。

所有这些因素都对大容量锂离子电池PCM中功率MOSFET的充放电管理提出了严格的技术设计挑战。

为了实现功率MOSFET的低导通电阻RDSon，有必要提高MOSFET单元密度。

其他技术也用于降低电阻，例如厚金属键合线和薄晶片。

N沟道功率MOSFET可以以减小的形状因数实现较低的导通电阻RDSon。

功率MOSFET封装通常使用引线，为了进一步降低导通电阻，在PCM中通过使用新的（芯片）级CSP封装技术完全消除了封装线电阻。

同时芯片级CSP的封装技术具有更好的导热性，从而降低功率MOSFET的温升，这有助于提高其可靠性。

使用CSP封装技术的功率MOSFET在没有外部塑料外壳和其他材料保护的情况下，在PCM生产过程中会受到各种热应力和（机械）应力的影响，例如（PCB）板的焊接过程，这可能会导致模具开裂的高风险。

因此应使用各种技术，例如在功率MOSFET芯片表面涂覆新材料，以确保其抵抗机械应力和热应力的能力，并提高可靠性。

短路能力大容量锂离子电池在应用中，特别是在极端条件下，如输出负载短路，会有非常大的电流通过电池。

当IC（检测）到输出过流时，它将延迟一段时间以进行保护动作。

在延迟时间期间，MOSFET的工作电流非常大，这要求MOSFET对大电流应力具有鲁棒性，因此所有锂离子电池都需要进行短路测试。

理论上芯片尺寸越大，对短路电流的鲁棒性越强。

PW3133AOne Cell Lithium-ion/Polymer Battery Protection ICGENERAL DESCRIPTIONThe PW3133A series product is a high integration solution for lithiumion/polymer battery protection. PW3133A contains advanced power MOSFET, high-accuracy voltage detection circuits and delay circuits. PW3133A is put into an ultra-small SOT23-3 package and only one external component makes it an ideal solution in limited space of battery pack.PW3133A has all the protection functions required in the battery application including overcharging, overdischarging, overcurrent and load short circuiting protection etc. The accurate overcharging detection voltage ensures safe and full utilization charging. The low standby current drains little current from the cell while in storage. The device is not only targeted for digital cellular phones, but also for any other Li-Ion and Li-Poly battery-powered information appliances requiring longterm battery life.FEATURES● Protection of Charger Reverse Connection ● Protection of Battery Cell ReverseConnection● Integrate Advanced Power MOSFETwithEquivalent of 56mΩ RSS(ON) ● Ultra-small SOT23-3 Package● Only One External CapacitorRequired ● Over-temperature Protection ● Overcharge Current Protection● Two-step Overcurrent Detection :Overdischarge Current;Load Short Circuiting● Charger Detection Function ● 0V Battery Charging Function ● Delay Times are generated inside ● High-accuracy Voltage Detection ● Low Current Consumption: OperationMode: 2.8μA typ.Power-down Mode: 1.5μA typ.● RoHS Compliant and Lead (Pb) FreeAPPLICATIONS● One-Cell Lithium-ion Battery Pack ● Lithium-Polymer Battery PackTYPICAL APPLICATION CIRCUIT代理深圳夸克微科技Wuxi PWChip Semi Technology CO., LTDELECTRICAL CHARACTERISTICSTypicals and limits appearing in normal type apply for TA = 25oC, unless otherwise specifiedNote: The parameter is guaranteed by design .ParameterSymbol Test Condition Min Typ Max UnitDetection VoltageOvercharge Detection Voltage V CU4.254.30 4.35VOvercharge Release Voltage V CL 4.054.10 4.15VOverdischarge Detection VoltageV DL 2.3 2.4 2.5VOverdischarge Release Voltage V DR2.93.03.1VDetection CurrentOverdischarge Current1Detection *I IOV1V DD =3.6V3.5A Load Short-Circuiting Detection*I SHORT V DD =3.6V20ACurrent ConsumptionCurrent Consumption in Normal OperationI OPE V DD =3.6V VM =0V 2.86μA Current Consumption in power DownI PDNV DD =2.0VVM pin floating1.53μAVM Internal Resistance Internal Resistance between VM and V DD*R VMD VDD=2.0V VM pin floating 300k ΩInternal Resistance between VM and GND*R VMSV DD =3.6V VM=1.0V20k ΩFET on ResistanceEquivalent FET on Resistance *R SS(ON)V DD =3.6V I VM =1.0A56m ΩOver Temperature Protection Over T emperature Protection*T SHD+150oCOver T emperature Recovery Degree *T SHD-110Detection Delay TimeOvercharge Voltage Detection Delay Timet CU 80130200mS Overdischarge Voltage Detection Delay Timet DL 204060mS Overdischarge Current Detection Delay Time*t IOV V DD =3.6V 4816mS Load Short-Circuiting Detection Delay Time*t SHORTV DD =3.6V80180300uSFunctional Block DiagramOPERATIONThe PW3133A monitors the voltage and current of a battery and protects it from being damaged due to overcharge voltage, overdischarge voltage, overdischarge current, and short circuit conditions by disconnecting the battery from the load or charger. These functions are required in order to operate the battery cell within specified limits.The device requires only one external capacitor. The MOSFET is integrated and its RSS(ON) is as low as 56mΩ typical.Normal operating modeIf no exception condition is detected, charging and discharging can be carried out freely. This condition is called the normal operating mode.Overcharge ConditionWhen the battery voltage becomes higher than the overcharge detection voltage (VCU) during charging under normal condition and the state continues for the overcharge detection delay time (tCU) or longer, the PW3133A turns the charging control FET off to stop charging. This condition is called the overcharge condition. The overcharge condition is released in the following two cases:1, When the battery voltage drops below the overcharge release voltage (VCL), the PW3133A turns the charging control FET on and returns to the normal condition.2, When a load is connected and discharging starts, the PW3133A turns the charging control FET on and returns to the normal condition. The release mechanism is as follows: the discharging current flows through an internal parasitic diode of the charging FET immediately after a load is connected and discharging starts, and the VM pin voltage increases about 0.7 V (forward voltage of the diode) from the GND pin voltage momentarily. The PW3133A detects this voltage and releases the overcharge condition. Consequently, in the case that the battery voltage is equal to or lower than the overcharge detection voltage (VCU), the PW3133A returns to the normal condition immediately, but in the case the battery voltage is higher than the overcharge detection voltage (VCU),the chip does not return to the normal condition until the battery voltage drops below the overcharge detection voltage (VCU) even if the load is connected. In addition, if the VM pin voltage is equal to or lower than the overcurrent 1 detection voltage when a load is connected and discharging starts, the chip does not return to the normal condition.Remark If the battery is charged to a voltage higher than the overcharge detection voltage (VCU) and the battery voltage does not drops below the overcharge detection voltage (VCU) even when a heavy load, which causes an overcurrent, is connected, the overcurrent 1 and overcurrent 2 do not work until the battery voltage drops below the overcharge detection voltage (VCU). Since an actual battery has, however, an internal impedance of several dozens of mΩ, and the battery voltage drops immediately after a heavy load which causes an overcurrent is connected, the overcurrent 1 and overcurrent 2 work. Detection of load shortcircuiting works regardless of the battery voltage.Overdischarge ConditionWhen the battery voltage drops below the overdischarge detection voltage (VDL) during discharging under normal condition and it continues for the overdischarge detection delay time (tDL) or longer, the PW3133A turns the discharging control FET off and stops discharging. This condition is called overdischarge condition. After the discharging control FET is turned off, the VM pin is pulled up by the RVMD resistor between VM and VDD in PW3133A.Meanwhile when VM is bigger than 1.5V (typ.) (the load short-circuiting detection voltage), the current of the chip is reduced to the power-down current (IPDN). This condition is called power-down condition. The VM and VDD pins are shorted by the RVMD resistor in the IC under the overdischarge and power-down conditions. The power-down condition is released when a charger is connected and the potential difference between VM and VDD becomes 1.3 V (typ.) or higher (load shortcircuiting detection voltage). At this time, the FET is still off. When the battery voltage becomes the overdischarge detection voltage (VDL) or higher (see note), the PW3133A turns the FET on and changes to the normal condition from the overdischarge condition.Remark If the VM pin voltage is no less than the charger detection voltage (VCHA), when the battery under overdischarge condition is connected to a charger, the overdischarge condition is released (the discharging control FET is turned on) as usual, provided that the battery voltage reaches the overdischarge release voltage (VDU) or higher.When the discharging current becomes equal to or higher than a specified value (the VM pin voltage is equal to or higher than the overcurrent detection voltage) during discharging under normal condition and the state continues for the overcurrent detection delay time or longer, the PW3133A turns off the discharging control FET to stop discharging. This condition is called overcurrent condition. (The overcurrent includes overcurrent, or load short-circuiting.)The VM and GND pins are shorted internally by the RVMS resistor under the overcurrent condition. When a load is connected, the VM pin voltage equals the VDD voltage due to the load. The overcurrent condition returns to the normal condition when the load is released and the impedance between the B+ and Bpins becomes higher than the automatic recoverable impedance. When the load is removed, the VM pin goes back to the GND potential since the VM pin is shorted the GND pin with the RVMS resistor. Detecting that the VM pin potential is lower than the overcurrent detection voltage (VIOV1), the IC returns to the normal condition.Abnormal Charge Current DetectionIf the VM pin voltage drops below the charger detection voltage (VCHA) during charging under the normal condition and it continues for the overcharge detection delay time (tCU) or longer, the PW3133A turns the charging control FET off and stops charging. This action is called abnormal charge current detection. Abnormal charge current detection works when the discharging control FET is on and the VM pin voltage drops below the charger detection voltage (VCHA). When an abnormal charge current flows into a battery in the overdischarge condition, the PW3133A consequently turns the charging control FET off and stops charging after the battery voltage becomes the overdischarge detection voltage and the overcharge detection delay time (tCU) elapses.Abnormal charge current detection is released when the voltage difference between VM pin and GND pin becomes lower than the charger detection voltage (VCHA) by separating the charger. Since the 0 V battery charging function has higher priority than the abnormal charge current detection function, abnormal charge current may not be detected by the product with the 0 V battery charging function while the battery voltage is low.Load Short-circuiting conditionIf voltage of VM pin is equal or below short circuiting protection voltage (VSHORT), the PW3133A will stop discharging and battery is disconnected from load. The maximum delay time to switch current off is tSHORT. This status is released when voltage of VM pin is higher than short protection voltage (VSHORT), such as when disconnecting the load.Delay CircuitsThe detection delay time for overdischarge current 2 and load short-circuiting starts when overdischarge current 1 is detected. As soon as overdischarge current 2 or load short-circuiting is detected over detection delay time for overdischarge current 2 or load short- circuiting, the PW3133A stops discharging. When battery voltage falls below overdischarge detection voltage due to overdischarge current, the PW3133A stop discharging by overdischarge current detection. In thisPW3133Acase the recovery of battery voltage is so slow that if battery voltage after overdischarge voltage detection delay time is still lower than overdischarge detection voltage, the PW3133A shifts to power-down.Overcurrent delay time0V Battery Charging Function (1) (2) (3)This function enables the charging of a connected battery whose voltage is 0 V by self-discharge. When a charger having 0 V battery start charging charger voltage (V0CHA) or higher is connected between B+ and B- pins, the charging control FET gate is fixed to VDD potential. When the voltage between the gate and the source of the charging control FET becomes equal to or higher than the turn-on voltage by the charger voltage, the charging control FET is turned on to start charging. At this time, the discharging control FET is off and the charging current flows through the internal parasitic diode in the discharging control FET. If the battery voltage becomes equal to or higher than the overdischarge release voltage (VDU), the normal condition returns.Note(1) Some battery providers do not recommend charging of completely discharged batteries. Please refer to battery providers before the selection of 0 V battery charging function.(2) The 0V battery charging function has higher priority than the abnormal charge current detection function. Consequently, a product with the 0 V battery charging function charges a battery and abnormal charge current cannot be detected during the battery voltage is low (at most 1.8 V or lower).(3) When a battery is connected to the IC for the first time, the IC may not enter the normal condition in which discharging is possible. In this case, set the VM pin voltage equal to the GND voltage (short the VM and GND pins or connect a charger) to enter the normal condition.TIMING CHART1． Overcharge and overdischarge detectionOvercharge and Overdischarge Voltage Detection2． Overdischarge current detectionOverdischarge Current DetectionRemark: (1) Normal condition (2) Overcharge voltage condition (3) Overdischarge voltage condition (4)Overcurrent conditionVV CU -VV DL +V VDLONONCHARGEV DD Vov1VSS VVM Charger Load V CUV CU -V HCV DL +V DHV DLONDISCHARGE OFF V DD V V ov2V ov1V SSCharger Load(1)(4)(1)(1)(1)(4)(4)Charger Detection4． Abnormal Charger DetectionAbnormal Charger DetectionRemark: (1) Normal condition (2) Overcharge voltage condition (3) Overdischarge voltage condition (4) Overcurrent conditionVV CU -V V DL +V V DL ON Charger Load V DDV SSV VMVVCU -VV DL +VV DL ON ONCHARGE VDD V SS VVM Charger LoadTYPICAL APPLICATIONAs shown in Figure 6, the bold line is the high density current path which must be kept asshort as possible. For thermal management, ensure that these trace widths are adequate. C1 is a decoupling capacitor which should be placed as close as possible to PW3133A.PW3133A in a Typical Battery Protection CircuitPrecautions• Pay attention to the operating conditions for input/output voltage and load current so that the power loss in PW3133A does not exceed the power dissipation of the package.• Do not apply an electrostatic discharge to this PW3133A that exceeds the performance ratings of the built-in electrostatic protection circuit.PW3133A 11 PW3133A_2.3 PACKAGE DESCRIPTION SOT23-3无锡平芯微。

基准电源常用芯片
基准电源芯片（也称作电压基准源或参考电压源）是电子电路中用于提供精确、稳定且温度系数极低的固定输出电压的集成电路。

这类芯片在许多需要高精度和长期稳定的系统中扮演着重要角色，例如仪表仪器、数据转换器（ADC/DAC）、电源管理以及各类精密模拟电路。

以下是一些常见的基准电压芯片：
1. LM236系列：
LM236D-2.5, LM236DR-2.5, LM236LP-2.5：这些是Texas Instruments（TI）生产的2.5V基准电压源芯片，具有较宽的工作电流范围（400uA~10mA）。

2. LM285系列：
LM285D-1.2, LM285D-2.5, LM285LP-2.5：这些是微功耗电压基准芯片，适用于电流需求较低的应用，工作电流范围为10uA至20mA。

3. LM336系列：
LM336BD-2.5：同样是TI的一款2.5V基准电压源，具有与LM285类似的微功耗特性，工作电流也在10uA至20mA之间。

4. 其他典型基准电压芯片：
MC1403：摩托罗拉（现NXP）生产的2.5V基准电压源。

TL431：一个精密可调基准稳压源，其输出电压可在2.5V至36V范围内调节，广泛应用于各种电源控制和保护电路中。

AZ431BN-ATRE1：可能是ADI公司的一款高精度电压基准芯片。