MAX890L

1.2A、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


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说明

The MAX890L smart, low-voltage, P-channel, MOSFET power switch is intended for high-side load-switching applications. This switch operates with inputs from +2.7V to +5.5V, making it 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 MAX890L's maximum current limit is 1.2A. The current limit through the switch is programmed with a resistor from SET to ground. The quiescent supply current is a low 10µA. When the switch is off, the supply current decreases to 0.1µA.

The MAX890L is available in an 8-pin SO package.
MAX890、MAX890L:典型工作电路 MAX890、MAX890L:典型工作电路 放大+

关键特性

  • +2.7V to +5.5V Input Range
  • Programmable Current Limit
  • Low Quiescent Current
    • 10µA (typ) at VIN = 3.3V
    • 0.1µA (typ) with Switch Off
  • Thermal Shutdown
  • Active-Low FAULT Indicator Output
  • 0.09Ω (typ) On-Resistance

应用

  • 接入总线插槽
  • PCMCIA槽
  • 便携式设备
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
MAX890L 112001200Yes15Resistor0.320.0752.75.5-40 to +85
SOIC (N)/8
$1.39 @1k
查看所有Current Limit and USB Power Switches (82)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

技术资料

应用笔记 298 Current-Limit Switch Is Digitally Programmable

质量和环境数据

产品可靠性报告: MAX890L.pdf 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

质量管理体系 >
环境管理体系 >

 
Status:
Package:
Temperature:

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类型 编号 PDF 标题
应用笔记 298 Current-Limit Switch Is Digitally Programmable