LTC2952CF#PBF
数据手册.pdfLINEAR TECHNOLOGY LTC2952CF#PBF 电源监控器, 低电平有效, 漏极开路复位, 2监视器, 2.7V-28V输入, TSSOP-20
The is a Power Management Device that features three main functions of pushbutton on/off control of system power, ideal diode PowerPath™ controller and system monitoring. The LTC2952"s pushbutton input, which provides on/off control of system power, has independently adjustable ON and OFF debounce times. A simple microprocessor interface involving an interrupt signal allows for proper system housekeeping prior to power-down. The ideal diode PowerPath controllers provide automatic low loss switchover between two DC sources by regulating two external P-channel MOSFETs to have a small 20mV forward drop. High reliability systems may utilize the LTC2952"s monitoring features to ensure system integrity. These features includes power-fail, voltage monitoring and µP watchdog. The LTC2952 operates over a wide operating voltage range to accommodate a large variety of input power supplies.
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- Pushbutton ON/OFF control
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- Automatic low loss switchover between DC sources
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- Monitored voltage over-temperature
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- Adjustable pushbutton ON/OFF timers
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- Simple interface allows graceful µP shutdown
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- Extendable housekeeping wait time prior to shutdown
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- 25µA Low shutdown current
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- ±1.5% Guaranteed threshold accuracy
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- 1.6s Watchdog timeout
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- ±8kV HBM ESD on PB\ input