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微功耗、可调过压保护控制器

产品详情

主要特征

应用/用途

Parametric specs for Multifunction PMICs
VIN (V) (min) 4.4
VIN (V) (max) 28
Package/Pins UMAX/10
Budgetary
Price (See Notes)
0
Parametric specs for Overvoltage Protection Controllers
# Channels 5
VIN (V) (min) 2
VIN (V) (max) 28
Over Voltage Trip Level (V) Adjustable (1.1V)
Under Voltage Lockout (V) 2.7
VGATE (V) 9.5
Over Volt. Flag Open-Drain
tGATE (On) (ms) 40
tGATE (Off) (µs) 11
Package/Pins UMAX/10
Budgetary
Price (See Notes)
0
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简化框图

支持和培训

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参量

Parametric specs for Multifunction PMICs
VIN (V) (min) 4.4
VIN (V) (max) 28
Package/Pins UMAX/10
Budgetary
Price (See Notes)
0
Parametric specs for Overvoltage Protection Controllers
# Channels 5
VIN (V) (min) 2
VIN (V) (max) 28
Over Voltage Trip Level (V) Adjustable (1.1V)
Under Voltage Lockout (V) 2.7
VGATE (V) 9.5
Over Volt. Flag Open-Drain
tGATE (On) (ms) 40
tGATE (Off) (µs) 11
Package/Pins UMAX/10
Budgetary
Price (See Notes)
0

主要特征

  • 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/用途

  • 多输出电源
  • 笔记本电脑
  • 电源模块

描述

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.

简化框图

MAX1807、MAX1808:典型工作电路 MAX1807、MAX1808:典型工作电路 Zoom icon

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