Sn51dp Datasheet Verified Jun 2026

Keep these separate and join them at a single "quiet" point (usually the thermal pad).

The is a high-efficiency LED backlight driver integrated circuit (IC) housed in a compact SSOP-10 package . Manufactured by ON-BRIG , it is widely implemented across commercial liquid crystal display (LCD) and LED television motherboards, notably including mainboards like the TP.S506.PB801 found in brands such as Hisense, Telefunken, Arielli, Crown, and Felix.

Based on the Electronica Max PDF datasheet, the 10-pin package (SOP-10) is configured for backlight driving and PWM management. Description Power Input Dimming Control / PWM Input Gate Driver - Overvoltage Protection Overvoltage Protection Sensor Gate Driver Negative Ground Reference Compensation Network Node Current Sense Input Feedback Voltage Input ISET / REF Current Set / Reference Voltage 3. Verified Applications of the SN51DP sn51dp datasheet verified

| Parameter | Symbol | Min | Typ | Max | Unit | Notes / Verified Source | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | | VDD | 1.6 | 3.3 | 5.5 | V | The core operational range for the control logic. | | Input Voltage (Power Stage) | V_IN | - | 12 | - | V | Common primary power input measured at Pin 1 in many TV power supply repairs. | | Output Voltage | V_OUT | - | 72 | - | V | Typical boosted voltage for LED strings. Normal operation can see ~115V output. | | Quiescent Current | IQ | - | 1.5 | - | μA | Low current consumption in no-load/standby states. | | Operating Temp. | T_oper | -40 | - | 85 | °C | Standard industrial temperature range. |

| Pin Number | Name | Function | |------------|------|-----------| | 1 | AC Input (+) | Anode of input LED (control side) | | 2 | AC Input (-) | Cathode of input LED | | 3 | Output Terminal 1 (L1) | Connected to main triac (load side) | | 4 | Output Terminal 2 (L2) | Connected to main triac (load side) | Keep these separate and join them at a

[Pin 1] ----|<|----+----|<|---- [Pin 2] | Zero-Crossing IC | Photo-Array | Main Triac Gate | [Pin 3]---+---Triac---[Pin 4] | Snubber (R+C)

The SN51DP is housed in a compact, surface-mount . It operates as a highly integrated Pulse Width Modulation (PWM) controller engineered to drive external MOSFET switches in boost topologies. LED driver IC replacement. Based on the Electronica Max PDF datasheet, the

This is the internal LDO output. Verify the required decoupling capacitance (usually 3. Application & Component Selection

The suspicion immediately shifted to the heart of the backlight circuit: the driver IC. The Hunt for the Datasheet

ESD Protection, On-chip Regulator, 1μ A Shutdown Package: SOP-10