R5641 系列
二节至四节锂电池二次保护芯片

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  • 概述

    The R5641 is an overcharge protection IC for 2- to 4-series cell Li-ion / Li-polymer rechargeable battery pack, with built-in high-accuracy voltage detection circuits and delay circuits. Controlling the supply voltage to the CTLC pin can control the COUT pin output. The shutdown detection can reduce the supply current to the minimum.

    • Reducing the supply current to 0.2 µA or less after shutdown detection can achieve the longer battery life.
    • Temperature protection enabled with an external PTC thermistor.
    • Be adaptable to 30 V input voltage by using high-voltage process.

  • 规格
    输入电压 4.0 V to 20 V (Maximum Rating: 30 V)
    元件数 2,3,4
    电源电流 Typ. 2.8 µA
    关断检测电压 Typ. 2.5 V ± 0.3 V, 3.7 V ± 0.3 V
    关断电流 Max. 0.2 µA
    过充电检测电压 4.10 V to 4.60 V (0.005 V Steps)
    过充电检测电压精度 ±0.016 V (Ta = 25°C)
    ±0.025 V (0°C ≤ Ta ≤ 60°C)
    过充电检测延迟时间 2 s, 4 s, 6 s
    过充电恢复电压 VDET1 to VDET1 -0.4 V (0.05 V Steps)
    Min. 4.05 V (Shutdown detection voltage = 3.7 V)
    封装 DFN2020-8C
    CTLC Detection Delay Time 2 ms
    Output Form CMOS Output

    保护回路/功能

    Temperature Protection Reset Alarm Cell Balance Cascadable Open Wire Detection Wakeup Short-circuit Current Detection Delay Time Shortening
  • 技术资料
    • 应用信息: 4节电池组保护电路例

      应用信息: 4节电池组保护电路例

  • 品质&封装
    • 有关产品的详细信息,请参见数据表。
    • 封装文件包括封装尺寸,卷带规格,卷带盘尺寸,功耗和建议的焊盘图案。
    • 请联系我们或我们的代理商以获取未发布的可靠性信息。

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功能说明

Temperature Protection Temperature Protection
Reset Reset Function
Alarm Alarm Function
Cell Balance Cell Balance Function
Cascadable Cascade Connect Function
Open Wire Detection Open Wire Detect Function
Wakeup Wakeup Function
Short-circuit Current Detection Short-circuit Current Protection
Delay Time Shorting Output Delay Time Short Function

有关详细信息,请参阅 "关于外部保护功能以及它们的优点"。

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分类:锂离子电池保护芯片

特性 Second Protection
元件 2,3,4
功能 Temperature Protection,Delay Time Shortening
长期供给 Applicable