Sn51dp — Datasheet Verified

LED Current Setting Pin (Calculates internal reference current metrics via a fixed ground-tied resistor) FB

Check the compensation network or ensure the output capacitors meet the minimum ESR/capacitance requirements for the internal loop.

According to technical documentation and verified component supplier databases, the is a standalone digital pulse width modulator (DPWM) IC and a dedicated LED Backlight Driver.

: LED TV Backlight Driver / Power Management Unit. Regulatory Compliance : Lead-Free / RoHS Compliant. sn51dp datasheet verified

This article is based on publicly available supplier specifications and repair documentation as of 2026. Always consult the specific PCB manufacturer's schematics for exact application details.

: Confirm if the IC is faulty or if an LED string inside the panel has failed. Connect the board to an external, known-good LED strip array .

: Backlight controller, LCD power management, and switching power IC. Package Type : Most commonly found in (SMD) packages. Supply Voltage : Operates between 3.5V and 7V Regulatory Compliance : Lead-Free / RoHS Compliant

Verification of an electronic component has two meanings: (1) making sure the datasheet information itself is correct, and (2) making sure the physical component you have matches that datasheet.

Main Input Power Supply (Typically accepts localized system rail distribution up to 12V) GATE

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Standalone Digital Pulse Width Modulator (DPWM) / LED Driver. Package Type: Typically SSOP-10 (10 pins) or MSOP-10 .

For diagnostic or repair purposes, the internal protection (inverter bypass) can be modified. Connecting a 10K resistor from Pin 9 to GND