JAJSOY7A June 2008 – September 2023 TPS2551-Q1
PRODUCTION DATA
The FAULT open-drain output is asserted (active low) during an overcurrent, overtemperature or reverse-voltage condition. The output remains asserted until the fault condition is removed. The TPS2551 is designed to eliminate false FAULT reporting by using an internal delay "deglitch" circuit for overcurrent (7.5-ms) and reverse-voltage (4-ms) conditions without the need for external circuitry. This design ensures that FAULT is not accidentally asserted due to normal operation such as starting into a heavy capacitive load. The deglitch circuitry delays entering and leaving fault conditions. Overtemperature conditions are not deglitched and assert the FAULT signal immediately.