The is a specialized power management Integrated Circuit (IC) primarily used as an LED backlight driver in liquid crystal display (LCD) applications. Manufactured by ON-Brig , this component is commonly found in the inverter and scaler boards of LED TVs from brands such as Arielli, Crown, Felix, and Hisense. Technical Specifications & Features
: Supports Pulse Width Modulation (PWM) and analog dimming variants ( OPWM-DIM ).
Note: Pinout and pin functions should be verified against the specific PCB design, as layout can vary slightly between manufacturers. 3. SN51DP Circuit Design and Protection
Thanks to the input design, you can connect a 3.3V or 5V logic output directly to any input pin. The built-in base resistor eliminates the need for external current-limiting resistors. sn51dp datasheet pdf
A quick search on the internet for "" will lead you to several distributor websites that either host the file or provide links to it.
Are you troubleshooting a specific board (like a laptop motherboard or industrial controller) where this part is located?
The SN51DP functions as a standalone digital pulse width modulator (DPWM) designed for high-efficiency power management in LCD/LED displays. Manufacturer Package Type MSOP10 / SSOP10 Supply Voltage (Vcc) 3.5V to 7V Operating Temp -20°C to 130°C Applications LED Backlight Driving, DC Motor Control 2. Pin Configuration (10-Pin Layout) According to typical application circuits: Pin 1: VIN (Supply Input) Pin 2: GATE (Drive output for MOSFET) Pin 3: GND (Ground) Pin 4: CS (Current Sense) Pin 5: ISET (Current Setting) Pin 6: REF (Reference Voltage) Pin 7: FB (Feedback) Pin 8: COMP (Compensation) The is a specialized power management Integrated Circuit
This configuration is a standard topology, which takes a lower input voltage (e.g., 12V) and "boosts" it up to the required backlight voltage (e.g., 71V, 115V).
The chip allocates its 10 physical pins to power regulation, feedback checking, and protection diagnostics. Understanding the exact layout from the datasheet schematic is vital before probing the board with a multimeter.
The is a power management integrated circuit (IC) primarily used as an LED TV backlight driver . It is manufactured by ON-BRIG and is commonly found in budget LED TV models (such as Arielli, Crown, and Felix) on the TP.S506.PB801 main board. Key Features & Specifications Note: Pinout and pin functions should be verified
A common technique described in technical forums is to connect a 10K Ohm resistor from Pin 9 to Ground (GND). This disables the OVP/fault detection and forces the IC to operate, allowing technicians to check if the backlight illuminates.
Based on the schematic data, the 10-pin layout is standard for many DC-DC boost controllers: Pin # Power supply input (typically 12V). DIM Dimming control input (PWM or DC voltage). GATE Drive signal output for the external N-Channel MOSFET. GND Ground reference. CS Current sense input (connects to source of MOSFET). REF/ISET Internal reference voltage or current setting pin. FB Feedback pin for monitoring LED current. COMP Compensation pin for stability of the control loop. OVP Over-voltage protection sense pin. GATE_OVP