Features and Benefits
- 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
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.
- Multi-Output Power Supplies
- Notebook Computers
- Power-Supply Modules
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
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