MAX891L: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 MAX891L/MAX892L smart, 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 temperatures. The MAX891L/MAX892L's maximum current limits are 500mA and 250mA, respectively. The current limit through the switch is programmed with a resistor from SET to ground. When the switch is on, the quiescent supply current is a low 13µA. When the switch is off, the quiescent current decreases to 0.1µA. The MAX891L/MAX892L are available in 8-pin µMAX® packages.

关键特性
  • Ultra-Small µMAX Package-Only 1.11mm High
  • 2.7V to 5.5V Input Range
  • Programmable Current Limit
  • Low 13µA Quiescent Current at VIN = 3.3V, 0.1µA Switch Off
  • Thermal Shutdown
  • FAULT-bar Indicator Output
  • On-Resistances:
MAX891L、MAX892L:典型工作电路
MAX891L、MAX892L: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MAX891L-MAX892L.pdfRev 0; 06/1997
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
MAX891L1500500Yes15Resistor0.10.122.75.5-40 to +85µMAX/8$1.47 @1k
MAX892L2502500.050.25µMAX/8
质量和环境数据
相关产品
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  • MAX894L:双路、限流型、高边P沟道开关,带有热关断
  • MAX890L:1.2A、限流型、高边P沟道开关,带有热关断
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX891LC/D停止供货DICE SALES,;NA引脚;DICE;0°C至+70°C参考数据资料
MAX891LEUA停止供货MAX891LEUA+µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
MAX891LEUA+生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX891LEUA+T生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX891LEUA-T停止供货MAX891LEUA+TµMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
MAX891L-MAX892L.pdf MAX892L
MAX891L.pdf MAX891L
MAX891L-MAX892L.pdf MAX892L