R5550 系列
智能电源开关IC

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  • 概述

    The R5550 Series are CMOS-based intelligent power switch IC. R5550 is a protection IC used in power line with built-in current limit circuit and under-voltage lockout circuit (UVLO). Due to a built-in 180mΩ on-resistor, R5550 can provide a low supply current.

    R5550 can detect two different over current threshold and under voltage error. When the R5550 detects over current, the switch turns off after the preset delay time (10ms). If the output current exceeds the larger current limit, the current is limited by the preset value immediately, and the switch turns off after the preset delay time (1.33ms).

    R5550 has VSENSE pin. If an abnormal low voltage is detected, after the preset delay time (10ms), the switch turns off. After detecting the abnormal situation, the switch turns on automatically if the cause of the error is removed. A 1mm square DFN(PL)1010-4F package called a flip chip is available.

  • 规格
    消费
    输入电压范围 2.3 V to 5.25 V (6.0 V)
    工作温度范围 -40°C to 85°C (125°C)
    电源电流 Typ. 2.6 µA (Enable, VSENSE = 2.0 V)
    输出电流 1 A
    导通电阻 180 mΩ (VIN = 3.3 V, IOUT = 100 mA)
    内置FET Pch
    封装 DFN(PL)1010-4F
    SENSE Pin Detector Threshold Typ. 0.5 V
    SENSE Pin Detector Threshold Accuracy ±3%

    保护回路/功能

    TSD Reverse OCP UVLO OVLO Soft Start PGOOD Auto Discharge Reset
  • 技术资料
    • Typical Application

      Typical Application

    • Output Voltage vs. Output Current

      Output Voltage vs. Output Current

    • Timing Chart Current Limit Detection

      Timing Chart Current Limit Detection

    • Timing Chart Low Voltage Detection

      Timing Chart Low Voltage Detection

    • Timing Chart Over Current Detection

      Timing Chart Over Current Detection

  • 品质&封装
    • 有关产品的详细信息,请参见数据表。
    • 封装文件或数据表包括封装尺寸,卷带规格,卷带盘尺寸,功耗和建议的焊盘图案。

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功能说明

TSD Thermal Shutdown Function
Reverse Current Protection Reverse Current Protection
OCP Overcurrent Protection
UVLO Undervoltage Lockout Protection
OVLO Overvoltage Lockout Protection
Soft Start Soft Start Function
PGOOD Power Good Output
Auto Discharge Auto Discharge Circuit

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分类:开关IC

特性 Intelligent Power SW
输入电压
min (V)
2.3
输入电压
max (V)
5.25
导通电阻
(mΩ)
180
输出电流
(mA)
1000