|top| | Sn51dp Datasheet High Quality

Operating a semiconductor device beyond its absolute maximum ratings can cause permanent, irreversible damage. The parameters below represent the strict boundary conditions for the SN51DP. Supply Voltage VCCcap V sub cap C cap C end-sub VDDcap V sub cap D cap D end-sub Input Pin Voltage VINcap V sub cap I cap N end-sub Continuous Output Current IOUTcap I sub cap O cap U cap T end-sub Peak Pulse Current ( IPEAKcap I sub cap P cap E cap A cap K end-sub Junction Temperature TJcap T sub cap J Storage Temperature Range TSTGcap T sub cap S cap T cap G end-sub Lead Temperature (Soldering, 10s)

This summary is based on publicly available data from reputable manufacturer sources. Always refer to the latest official SN51DP datasheet for design validation.

Designed for low jitter operation to ensure stable backlight performance without flickering.

: High-speed, 8-bit programmable pulse width resolution with low-jitter operation. User Reviews & Reliability sn51dp datasheet high quality

Disclaimer: Always refer to the official component manufacturer for the most current specifications and application notes. Component specifics (pin count, exact ratings) may vary by revision and brand; the above represents typical characteristics for this class of switching regulator.

Understanding the pin configuration is crucial for implementing the SN51DP into a design. Based on typical schematics, the SN51DP operates with several key feedback and control pins.

Understanding the pinout is crucial for troubleshooting or designing circuits around the SN51DP. Based on typical 10-pin MSOP configurations, the layout is as follows: Pin Number Input Voltage Supply PWM Dimming Control Input Gate Driver Output Over-Voltage Protection Ground Connection Compensation Network Current Sense Input Feedback Voltage Input Current Setting Resistor Reference Voltage Output Operating a semiconductor device beyond its absolute maximum

| Pin | Name / Function | Description & Notes | Measured Voltage (in a working TV) | | :-- | :--- | :--- | :--- | | 1 | | IC power supply input. Typically receives 12V from the main power board. A decoupling capacitor is often placed nearby to filter noise. | 12V | | 2 | GATE / DRV | Gate drive output. Connects to the gate of the external N-Channel MOSFET. This pin outputs a square wave (PWM signal) to turn the MOSFET on and off at high speed. | 0V | | 4 | ISEN / OCP | Over-Current Protection (OCP) sense input. Monitors voltage across a sense resistor (often a low-value resistor between the MOSFET source and ground). If the current exceeds a threshold, the IC shuts down to prevent damage. | - | | 5 | REF / Dimming | Dimming control input. Receives a DC voltage (e.g., 1.5V to 2.5V) from the main processor to set the target backlight current. | 2.5V | | 7 | FB | Feedback input. Connects to the LED- return line. It monitors the current flowing through the LED strips to ensure accurate regulation. | - | | 9 | OVP | Over-Voltage Protection input. Monitors the boosted LED+ voltage via a resistive voltage divider. If the voltage climbs too high (e.g., due to an open LED string), this pin triggers a shutdown. | 1.55V | | 10 | PWM-DIM | PWM Dimming input. Receives a square wave (PWM signal) from the main processor. The duty cycle of this signal dictates the brightness level of the display. | 3.1V | Note: Pins 3, 6, and 8 are typically ground (GND) or not connected, though their exact function may vary by manufacturer.

Technical Review of the SN51DP LED Backlight Driver IC The predominantly used in modern LED televisions and display panels . Typically housed in a compact 10-pin SSOP/MSOP package , this component plays a critical role in managing the voltage and current supplied to the LED strip backlights. It ensures uniform display brightness, energy efficiency, and thermal stability.

A: Yes, some simple checks are possible. You can verify that Pin 1 receives 12V and check the outputs on Pin 10 (PWM-DIM) and Pin 5 (REF) for the proper signals from the main processor. However, without an oscilloscope to see the switching waveform on Pin 2 (GATE), it's difficult to conclusively label the chip as good or bad. Always refer to the latest official SN51DP datasheet

For those who may not be familiar with the SN51DP chip, here is a brief overview:

You can download the datasheet directly from TI's website: SN51DP datasheet (PDF)