Sn51dp Datasheet __link__ <QUICK 2025>
The SN51DP is a specialized LED Driver and Power Management IC primarily used as a backlight controller for LCD/LED TVs and industrial displays. It is commonly found on mainboards such as the TP.S506.PB801 and is used in television brands like Arielli, Crown, and Felix. ## Technical Specifications Package Type: SSOP-10 or MSOP-10 (10-pin Surface Mount).
Limitation: Not suitable for phase-control dimming (e.g., light dimmers) because zero-crossing forces full-cycle switching. sn51dp datasheet
- Static Characteristics: If the device is a transistor, parameters such as DC current gain (hFE) and saturation voltage (Vce(sat)) are paramount. A low Vce(sat) indicates high efficiency in switching applications, minimizing power loss.
- Dynamic Characteristics: Parameters like transition frequency (fT) or switching times (ton, toff) reveal how the SN51DP performs under high-frequency operation. This data is crucial for applications involving PWM (Pulse Width Modulation) or RF signal processing.
- Leakage Currents: Low leakage current specifications ensure that the device does not consume significant power when in the "off" state, a vital metric for battery-powered applications.
The SN51DP datasheet provides a typical circuit configuration for using the IC in a differential driver application. The circuit configuration includes: The SN51DP is a specialized LED Driver and
Final Verdict
Rating: 4.5/5
OVP (Over Voltage Protection) — Protection can sometimes be bypassed for testing by connecting a 10K resistor from this pin to GND. Common Applications LED TV/Monitor Repair: Static Characteristics: If the device is a transistor,
Q4: My SN51DP runs hot even at 1A – is this normal?
A: Yes, due to its BJT design, efficiency is lower (70-80%). A heat sink is mandatory above 500mA. Consider a modern alternative (e.g., LM2596) for new designs.