Sn51dp Datasheet Pdf File

The you are currently reading on Pins 1 ( VIN ), 3 ( GATE ), and 9 ( OVP ).

Check for 12V VIN at Pin 1, measure voltage on the OVP pin (Pin 9) for protection faults, and check the PWM signal (Pin 2) from the mainboard.

This shows that the SN51DP's protection features worked correctly, stopping the circuit to prevent further damage. Finding the cause of the protection trip is the key to a successful repair. sn51dp datasheet pdf

LED Current Setting pin; configures the baseline operating current for the backlight arrays.

When repairing boards that use the , the most common fix involves bypassing the protection circuit to diagnose whether the fault lies within the LED strip or the driver board. The you are currently reading on Pins 1

This bypass should only be executed during safe bench diagnostics. Keeping protection permanently disabled risks overheating the panel or damaging secondary power circuits. 5. Equivalent Substitutes and Cross-Referencing

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. The IC Sn51dp schematic , ic inverter by-passing protection Finding the cause of the protection trip is

Feedback input terminal linked to the LED cathode to regulate string current. COMP

Powering high-definition LCD screens in handheld or desktop devices.

Monitored via a resistor divider from the boosted LED anode line to prevent over-voltage failures. NC / VREF No Connect / Reference