MAX1808

微功耗、可调过压保护控制器


点击查看特定型号的库存状况。

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 NumberChannelsVIN
(V)
VIN
(V)
Over Voltage Trip Level
(V)
Under Voltage Lockout
(V)
VGATE
(V)
Over Volt. FlagtGATE (On)
(ms)
tGATE (Off)
(µs)
Package/Pins
minmax
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 (82)


Part NumberPrimary TopologyMonitor/Control FeaturesVIN
(V)
VIN
(V)
Package/Pins
minmax
MAX1807 Amplifier/Buffer
Feedback Integrator
Output OVP
Shutdown
4.428
UMAX/10
MAX1808 
Feedback Integrator
Low Batt./POK Output
Output OVP
Shutdown
UMAX/10

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: MAX1808 
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。

质量管理体系 >
环境管理体系 >

 
Status:
Package:
Temperature:

相关资料