(the "SN" prefix is common for TI parts). However, standard public databases often list these as "marking codes" or "top-side markings" rather than the full part number. Potential Data Sources
Capable of managing high-brightness displays with robust thermal performance. sn51dp datasheet pdf
To diagnose whether the root cause is a faulty driver IC or a single burned-out LED bulb within the screen panel, repair professionals often use a temporary bypass maneuver. (the "SN" prefix is common for TI parts)
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) To diagnose whether the root cause is a
The SN51DP pinout is critical for troubleshooting and repair: Power Input. PWM-DIM: PWM Dimming Signal Input. GATE: Gate Drive Output for external MOSFET. GND: Ground. CS/FB: Current Sense/Feedback pin for current regulation. ISET: LED Current Setting Pin. REF: Reference Voltage. COMP: Compensation Pin for boost converter stability. OVP: Over Voltage Protection Input.
To temporarily isolate whether the fault lies within the IC circuit or the physical LED panel strips, standard field diagnostics suggest feature. This is achieved by soldering a 10kΩ resistor from Pin 9 (OVP) directly to Pin 3 (GND) .
You can find full schematic diagrams and detailed operating curves in the following PDF resources: SN51DP Datasheet - Electronica Max SN51DP Full PDF - AG Electronica Replacement & Availability at Utsource