MAX6399 Description
The MAX6399 is a small overvoltage and undervoltage protection circuit. The device can monitor a DC-DC output voltage and quickly disconnect the power source from the DC-DC input load when an overvoltage condition occurs. A power-OK output signals when the DC-DC input voltage falls below an adjustable threshold.
MAX6399 Key Features
- Wide Supply Voltage Range (5.75V to 72V)
- Internal Charge Pump Ensures n-Channel MOSFET is Fully Enhanced During Normal Operation (VGS = 10V)
- Fast GATE Shutoff During Overvoltage with 20mA Sink Capability
- Latches Off External n-Channel MOSFET During High-Voltage Transients
- Adjustable DC-DC Input Undervoltage Threshold Power-OK Output
- Adjustable DC-DC Output Overvoltage Thresholds
- Overtemperature Shutdown Protection
- Fully Specified from -40°C to +125°C