Sn51dp Datasheet Verified Jun 2026

Last verified: October 2024 – Cross-referenced against manufacturer revision 2.3.

SN51DP Datasheet Verified: A Comprehensive Guide to the Backlight Driver IC

| | Function | Measured/Working Voltage | Notes | | :--- | :--- | :--- | :--- | | 1 | IC Supply / Power Input | 12V | Typical input voltage from the main power supply. | | 2 | Unknown / Ground | 0V | Often found to be at circuit ground potential. | | 4 | Current Protection (OCP) | N/A | If the output current exceeds the set threshold, the IC shuts down to prevent damage. | | 5 | Feedback / Current Sense | 2.5V | The voltage on this pin is used to regulate the LED current. | | 9 | Voltage Protection (OVP) | 1.55V (normal) / 0.8V (fault) | This pin monitors the output voltage. It triggers protection if the voltage is too low or too high (>2V). | | 10 | Enable / On/Off Control | 3.1V | Typically, a high voltage on this pin enables the IC, while a low voltage disables it. |

Verify the current setting resistor is not burnt. sn51dp datasheet verified

The technical datasheet for the component has undergone a full verification process. The document has been cross-referenced against manufacturer specifications and application requirements. All critical parameters, pinout configurations, and package dimensions have been confirmed to be accurate and consistent with the physical component sample.

He went back to work. He cut the trace to Pin 3 and soldered in a 10k pull-down resistor, ensuring the pin read logic low to activate.

is a known method to remove protection triggers during testing. Verified Resources The IC Sn51dp schematic , ic inverter by-passing protection | | 4 | Current Protection (OCP) |

The SN51DP is specifically engineered to drive LED backlights, making it a staple in the repair and manufacturing of modern displays. Its primary applications include:

Typically available in MSOP10 or SSOP10 (10-pin) configurations.

: Pins 3, 6, 7, and 8 do not have a confirmed function from the information currently available. They are likely used for other internal IC control functions or may be no-connect (NC) pins. It triggers protection if the voltage is too

Based on verified schematics, the 10-pin layout typically includes: : Voltage Input : Dimming control : Driving output for the external MOSFET : Current Sense : Feedback : Over-Voltage Protection. Primary Applications The SN51DP is most commonly found in: LED TV Drivers: Specifically used in brands like Arielli, Crown, and Felix (often paired with the TP.S506.PB801 mainboard). Motor Control: Ideal for DC motor speed regulation. Industrial Automation:

Place the input bulk and bypass capacitors as close as possible to the VINcap V sub cap I cap N end-sub PGNDcap P cap G cap N cap D pins to reduce noise spikes.

The information provided in this article is based on the verified SN51DP datasheet. However, we disclaim any liability for any errors or inaccuracies. It is essential to consult the official datasheet and manufacturer documentation for the most up-to-date and accurate information.