ENGLISH 简体中文 日本語 한국어  

MAX891L, MAX892L
限流型、高端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


  快速浏览     技术文档     定购信息     更多信息     所有内容  
概述
完整的数据资料 (PDF, 120kB)
英文 Download this datasheet in PDF format下载

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   应用/使用
  • 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:
    • 0.12Ω (MAX891L)
    • 0.25Ω (MAX892L)

 
  • 接入总线插槽
  • PCMCIA槽
  • 便携式设备

    Key Specifications:   USB Power Switches
    Part Number Number of Switches Max. Load Current (A) RON (typ) (Ω) Fault Indicator Switch Op. Voltage Range (V) Package Operating Temp. Range (°C) Price**
    MAX891L  1 0.5 0.12 Yes 2.7 to 5.5 uMAX/8 -40 to +85 $1.32 @ 1k
    MAX892L  0.25 0.25 $1.32 @ 1k
    See All USB Power Switches (28)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    图表
    MAX891L,MAX892L:典型工作电路
    典型工作电路

    没有找到你需要的产品吗?
  • 应用工程师帮助选型,下个工作日回复
  • 参数搜索
  • 应用帮助
  •  快速浏览   技术文档   定购信息   更多信息  
     概述 
     关键特性 
     应用/使用 
     关键指标 
     图表 

     数据资料 
     应用笔记 
     设计指南 
     工程期刊 
     可靠性报告 
     软件/模型 
     评估板 

     价格与供货 
     样品 
     在线订购 
     封装信息 
     无铅信息 

     相关产品 
     注释、注解 
     评估板 

    参考文献: 19-1223; Rev. 0; 1997-06-01
    本页最后一次更新: 2008-07-14



          隐私权政策    法律声明

          © 2008 Maxim Integrated Products, Dallas Semiconductor版权所有