R5494 系列


  • 概述

    The R5494 is a high voltage tolerance CMOS-based protection IC for Over-charge / discharge and Overcurrent of a rechargeable one-cell Lithium-ion (Li+) / Lithium polymer battery. The R5494 can detect Over-charge / discharge of the Li+ one-cell, Excess load current, and Charge-current. And, the R5494 has a short circuit detector for preventing large external short circuit current. The R5494 consists of four voltage detectors, a reference unit, a delay circuit, a short circuit detector, an oscillator, a counter, and logic circuits.

  • 规格
    输入电压 1.5 V to 5.0 V (Maximum Rating: 12 V)
    元件数 1
    电源电流 Typ. 3.0 µA
    待机电流 Max. 0.5 µA
    过充电检测电压 4.1 V to 4.5 V (0.005 V step)
    过充电检测电压精度 ±20 mV
    过充电检测延迟时间 1.0 s
    过放电检测电压 2.1 V to 3.0 V (0.050 V step)
    过放电检测电压精度 ±35 mV
    过放电检测延迟时间 128 ms
    放电过电流检测电压 0.030 V to 0.048 V (0.001 V step)
    放电过电流检测电压精度 ±10% or ±4 mV
    放电过电流检测延迟时间 8 ms
    充电过电流检测电压 -0.030 V to -0.020 V (0.001 V step)
    充电过电流检测电压精度 ±15%
    充电过电流检测延迟时间 9 ms
    短路检测电压 VDET3 = 0.030 V to 0.047 V : VDET3 x 3
    VDET3 = 0.048 V : VDET3 x 3 -1mV
    检测延迟时间短 200 µs (tVDET3 = 8 ms)
    恢复过充的条件 Voltage Release
    恢复过放电的条件 Voltage Release
    封装 DFN1814-6C
    0 V Charge Optional


    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


  • 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。



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"。



特性 Battery Protection
元件 1
功能 Short-circuit Current Detection,Delay Time Shortening