You can download the official PDF datasheet directly from the manufacturer or major component distributors:
Many searches for the "sn51dp datasheet pdf" come from people repairing old electronics. Unlike a standard 7805 voltage regulator, the SN51DP is more niche. The datasheet is the only reliable source to confirm pinouts and electrical behaviors. sn51dp datasheet pdf
Frequently used as a replacement part for malfunctioning LCD power stages. Data Sheet Resources You can download the official PDF datasheet directly
Does anyone here have a copy of the datasheet they could share? I suspect it might be a specialized driver or interface chip, possibly from TI or a similar manufacturer, but I need the pinout and electrical characteristics to confirm. Frequently used as a replacement part for malfunctioning
The Darlington configuration suffers from slower turn-off due to charge storage. Maximum switching frequency is around 10–20 kHz for small loads. For PWM applications (LED dimming, motor speed control), stay below 1 kHz to avoid excessive heating.
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)
