MAX1807/MAX1808 Micropower Adjustable Overvoltage Protection Controllers
■General description:
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 overvoltage 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.
■Features
●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
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MAX1807 、 MAX1808 、 MAX1807EUB 、 MAX1808EUB |
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[ Notebook Computers ][ Power-Supply Modules ][ Multi-Output Power Supplies ] |
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Datasheet |
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Please see the document for details |
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μMAX |
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English Chinese Chinese and English Japanese |
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10/00 |
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Rev 0; |
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19-1791 |
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490 KB |
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