MAX1807

微功耗、可调过压保护控制器


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说明

The MAX1807/MAX1808 monitor up to five supply rails for an overvoltage condition and provide a latched output when any one of the five supplies exceeds the trip thresholds. The latched output drives an external P-channel load switch to remove power when an over-voltage condition is detected. The latch is reset when a logic low is input to ON or the power supply is cycled.

The MAX1807 provides a 28V open-drain fault output that can be used to trigger an alert, trip a resetable fuse, or for other purposes. The MAX1808 includes a low-battery comparator with hysteresis to drive the DP output high, turning off the external P-channel switch when the input voltage is too low.

The MAX1807/MAX1808 are available in a miniature 10-pin µMAX® package.
MAX1807、MAX1808:典型工作电路 MAX1807、MAX1808:典型工作电路 放大+

关键特性

  • Five 3% Accurate Overvoltage Comparators
  • Series PFET Gate Driver with VGS Limiter
  • 21µA Quiescent Supply Current
  • 4µA Shutdown Current
  • 4.4V to 28V Operating Voltage Range
  • 3% Accurate Comparator with 10% Hysteresis for Low-Battery Detection (MAX1808)
  • 28V Open-Drain N-Channel Output (MAX1807)
  • Small 10-Pin µMAX Package

应用

  • 多输出电源
  • 笔记本电脑
  • 电源模块

请查看具体的参数规格 Overvoltage Protection Controllers (74)


Part Number# ChannelsVIN
(V)
VIN
(V)
Over Voltage Trip Level
(V)
Under Voltage Lockout
(V)
VGATE
(V)
Over Volt. FlagtGATE (On)
(ms)
tGATE (Off)
(µs)
Package/Pins
(min)(max)
MAX1807 5228Adjustable (1.1V)2.79.5Open-Drain4011
UMAX/10
MAX1808 -
See Data Sheet

请查看具体的参数规格 Multifunction PMICs (83)


Part NumberVIN
(V)
VIN
(V)
(min)(max)
MAX1807 4.428
MAX1808 

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。
申请可靠性报告: MAX1807 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

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。

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