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TPS53513: Are UVP/OVP/OCP latch mode?

Part Number: TPS53513

Hi team,

I would like to double confirm TPS53513 UVP/OVP/OCP are all latch mode, and can only be recovered by recycling VDD or EN, correct?

Thank you.

Regards,

Allen

  • OVP UVP

    Overvoltage and Undervoltage Protection The TPS53513 device monitors a resistor-divided feedback voltage to detect overvoltage and undervoltage. When the feedback voltage becomes lower than 68% of the target voltage, the UVP comparator output goes high and an internal UVP delay counter begins counting. After 1 ms, the TPS53513 device latches OFF both high-side and low-side MOSFETs drivers. The UVP function enables after soft-start is complete. When the feedback voltage becomes higher than 120% of the target voltage, the OVP comparator output goes high and the circuit latches OFF the high-side MOSFET driver and turns on the low-side MOSFET until reaching a negative current limit. Upon reaching the negative current limit, the low-side FET is turned off and the high-side FET is turned on again for a minimum on-time. The TPS53513 device operates in this cycle until the output voltage is pulled down under the UVP threshold voltage for 1 ms. After the 1-ms UVP delay time, the high-side FET is latched off and low-side FET is latched on. The fault is cleared with a reset of VDD or by retoggling the EN pin.

    OCP is non latched

    The TPS53513 device has cycle-by-cycle overcurrent limiting control.

    Thermal Shutdown

    The TPS53513 device monitors internal temperature. If the temperature exceeds the threshold value (typically 140°C), TPS53513 device shuts off. When the temperature falls approximately 40°C below the threshold value, the device turns on. Thermal shutdown is a non-latch protection.