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2A、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

产品详情

主要特征

应用/用途

Parametric specs for Current Limit and USB Power Switches
Current Limit (mA) (min) 2000
Current Limit (mA) (max) 2000
# Power Switches 1
USB Yes
Fault Indicator Yes
Current Limit Accuracy (%) 15
Current Limit Set By Resistor
Lowest Adj. Setting (A) 0.4
RON (Ω) (typ) 0.038
VSUPPLY (V) (min) 2.7
VSUPPLY (V) (max) 5.5
Oper. Temp. (°C) -40 to +85
Package/Pins QSOP/16
Budgetary
Price (See Notes)
2.26
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简化框图

技术文档

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参量

Parametric specs for Current Limit and USB Power Switches
Current Limit (mA) (min) 2000
Current Limit (mA) (max) 2000
# Power Switches 1
USB Yes
Fault Indicator Yes
Current Limit Accuracy (%) 15
Current Limit Set By Resistor
Lowest Adj. Setting (A) 0.4
RON (Ω) (typ) 0.038
VSUPPLY (V) (min) 2.7
VSUPPLY (V) (max) 5.5
Oper. Temp. (°C) -40 to +85
Package/Pins QSOP/16
Budgetary
Price (See Notes)
2.26

主要特征

  • Very Small Footprint (16-pin QSOP is the same size as an 8-pin SO)
  • Low Resistance: 45mΩ at 3V
  • ±21%-Accurate, User-Set Current Limit
  • 12µA (typ) Quiescent Current
  • 0.01µA (typ) Shutdown Current
  • 0.04µA (typ) Leakage to Output when Switch is Off
  • 2.7V to 5.5V Input Range
  • Thermal Shutdown
  • Active-Low FAULT Output

应用/用途

  • 手持式仪表(PDA、掌上电脑)
  • 笔记本电脑
  • 掌上电脑
  • 个人通信装置
  • 便携式医用仪表
  • 通用串行总线(USB)

描述

The MAX869L P-channel load switch features an accurate user-set current limit and low on-resistance. This switch is designed to protect your power source from shorts and surges by limiting current and preventing the system supply from being pulled low. The input voltage range is 2.7V to 5.5V.

The MAX869L features a 2A, 45mΩ switch controlled by a logic signal. Current-limit accuracy is ±21%, and can be set from 400mA to 2.4A using a single resistor.

The device has a low 12µA quiescent supply current, which reduces to 2µA max in shutdown. It features thermal-shutdown protection and a logic-signal output pin (active-low FAULT) that signals when there is an overcurrent or overtemperature condition.

简化框图

MAX869L:典型工作电路 MAX869L:典型工作电路 Zoom icon

技术文档

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心