Disclaimer: The information provided in this article is for educational purposes. Always refer to the original manufacturer’s datasheet for the final word on electrical specifications and safety limits.
Never exceed these values, even momentarily. Operating the SN51DP beyond its maximum rated voltage or temperature will cause permanent silicon degradation or immediate catastrophic failure. 2. Electrical Characteristics Table
Pin 4 senses the current through the external MOSFET (or the entire LED return path). A small sense resistor (or a group of resistors, such as RB818–RB820) creates a voltage drop proportional to the current. If the voltage at pin 4 exceeds the threshold, the IC halts operation to prevent damage to the MOSFET, inductor, and LED strings. sn51dp datasheet pdf %21%21EXCLUSIVE%21%21
The SN51DP is a common replacement part for LED TV mainboards, specifically models from brands like Arielli, Crown, and Felix LED TV Backlighting
(Key: H = High Logic Level, L = Low Logic Level, X = Irrelevant/Don't Care) Disclaimer: The information provided in this article is
The SN51DP uses a 10-pin layout to manage power, dimming, and feedback. Based on available technical schematics , the pin functions are generally as follows: Input Voltage. GATE: Output for driving the external MOSFET.
What is this chip installed in (e.g., laptop motherboard, power supply, industrial board)? Operating the SN51DP beyond its maximum rated voltage
| Parameter | Symbol | Min | Max | Unit | | :--- | :--- | :--- | :--- | :--- | | Supply Voltage (Vcc to GND) | Vcc | -0.3 | 22 | V | | Output Voltage (A, B) | Vout | -0.3 | Vcc + 0.3 | V | | Vref Output Current | I_Vref | 0 | 10 | mA | | RT/CT Voltage | | -0.3 | Vref + 0.3 | V | | Power Dissipation (DIP-8) | P_D | | 1000 | mW | | Operating Junction Temperature | T_J | -40 | 150 | °C | | Storage Temperature | T_stg | -65 | 150 | °C |
Does anyone have an for the SN51DP (maybe a SIP module or hybrid IC)? I've checked the usual sites (Alldatasheet, Datasheet Archive, Octopart) but only found brief catalog excerpts.