Mp3378e Protection Pin Upd -

Limits current to the external MOSFET and internal buck converter.

Monitored through a specific resistor divider to prevent output voltage from exceeding safe limits.

The is a versatile, single-chip integrated circuit designed by Monolithic Power Systems (MPS) for liquid crystal display (LCD) monitor applications. It combines a 4-channel White LED (WLED) controller for backlighting with a high-efficiency buck converter for internal system power. mp3378e protection pin upd

The MP3378E integrates multiple protection modes to safeguard the IC and the LED strings from damage:

Current sinks for the 4 LED strings; failures here often trigger protection. Limits current to the external MOSFET and internal

Sets the LED current; a resistor between this pin and ground programs the brightness.

Automatically shuts down the chip if internal temperatures reach unsafe levels. It combines a 4-channel White LED (WLED) controller

Technicians often check the resistor values for the OVP resistor divider to ensure the chip is receiving the correct feedback voltage. Troubleshooting and "Bypassing"

Over-Voltage Protection input; senses output voltage via a resistor divider.