MAX894L:双路、限流型、高边P沟道开关,带有热关断

低电阻p沟道开关,为系统和USB提供可调节的、精确的限流保护

The MAX894L/MAX895L smart, dual, low-voltage, P-channel, MOSFET power switches are intended for high-side load-switching applications. These switches operate with inputs from +2.7V to +5.5V, making them ideal for both 3V and 5V systems. Internal current-limiting circuitry protects the input supply against overload. Thermal-overload protection limits power dissipation and junction temperature. The MAX894L/MAX895L's maximum current limits are 500mA and 250mA, respectively. The current limit through the switches is programmed with resistors from SET A/SET B to ground. When the switches are on, the quiescent supply current is a low 16µA. When the switches are off, the supply current decreases to 0.1µA. The MAX894L/MAX895L are available in an 8-pin SO package.

关键特性
  • +2.7V to +5.5V Input Range
  • Programmable Current Limits
  • Low Supply Current:
    • 16µA IQ at VIN = 3.3V
    • 0.1µA with Switch Off
  • Thermal Shutdown
MAX894L、MAX895L:典型工作电路
MAX894L、MAX895L:典型工作电路
应用
  • 接入总线插槽
  • PCMCIA槽
  • 便携式设备
数据手册DataSheet
语言下载文件备注
英文MAX894L-MAX895L.pdfRev 1; 03/2007
关键参数
Part NumberPower SwitchesCurrent Limit
(mA)
Current Limit
(mA)
Fault IndicatorCurrent Limit Accuracy
(%)
Current Limit Set ByLowest Adj. Setting
(A)
RON
(Ω)
VSUPPLY
(V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxtypminmaxSee Notes
MAX894L2500500No15Resistor0.10.122.75.5-40 to +85SOIC(N)/8$2.20 @1k
MAX895L2502500.050.25SOIC(N)/8
技术资料
质量和环境数据
相关产品
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订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX894LC/D停止供货DICE SALES,;NA引脚;DICE;0°C至+70°C参考数据资料
MAX894LESA停止供货MAX894LESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX894LESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX894LESA+T生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX894LESA-T停止供货MAX894LESA+TSOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
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