Sn51dp Datasheet Pdf %21%21exclusive%21%21 Access

What is this chip installed in (e.g., laptop motherboard, power supply, industrial board)?

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. The IC Sn51dp schematic , ic inverter by-passing protection

| Pin | Function | Description & Key Notes | | :--- | :--- | :--- | | | VIN | 12V Power Supply Input. Provides the main operating voltage for the IC. | | 2 | GND | Ground connection (0V). | | 3 | NC / DRV | Could be No Connect or a gate drive output; its function is not fully detailed in standard public literature. | | 4 | OCP | Over-Current Protection. Monitors the output current. If it exceeds a safe threshold, the IC will enter a protection mode. | | 5 | FB | Feedback Input. Typically receives a voltage of around 2.5V. This pin is used to regulate the output voltage by comparing it to an internal reference. | | 6 | COMP | Compensation Pin. Used for connecting external components (like capacitors and resistors) to stabilize the IC's control loop. | | 7 | PWM | Pulse Width Modulation Dimming Control. An external PWM signal here controls the brightness of the LED backlight. | | 8 | EN/ON | Enable / ON/OFF Control. A logic-high signal (usually >1.6V) enables the IC, while a logic-low signal (<0.8V) shuts it down. | | 9 | OVP | Over-Voltage Protection. Monitors the output voltage. A measured voltage of around 1.55V is typical for normal operation. Important Note: In troubleshooting, it has been noted that connecting a 10kΩ resistor from pin 9 to ground can be used to "de-protect" or temporarily bypass the OVP for testing purposes. However, this should be done with extreme caution and only for diagnostic work. | | 10 | VOUT | Output for the IC's internal low-voltage regulator, often measured around 3.1V. |

is an efficient LED driver designed for high-brightness lighting systems and display backlighting. Key Technical Specifications Package Type sn51dp datasheet pdf %21%21EXCLUSIVE%21%21

According to the circuit layout provided in official reference docs, the 10-pin configuration breaks down as follows: Pin Number Core Functionality VIN Input supply voltage (typically connected to a 12V rail) 2 GATE Output drive pin connected to the external switching MOSFET 3 GND System Ground / Common reference point 4 CS Current Sense input for over-current protection cycles 5 ISET

If the SN51DP is unavailable, consider these replacements (depending on function):

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The SN51DP is a high‑efficiency designed for LED LCD television panels. It is typically housed in a 10‑pin SSOP (Shrink Small Outline Package) or TSSOP‑10 package, making it ideal for compact and space‑constrained power supply boards found in modern TVs.

Together, these components form a boost converter, stepping up a lower voltage to the high voltage required to illuminate the LED strips.

Exact drop-in replacements depend heavily on your circuit's package layout and pin structure. Common cross-references include specific high-efficiency power IC components from TI, Richtek, or Diodes Inc. Always verify the pinout and electrical tolerances before swapping components on a live PCB. What causes an SN51DP IC to fail? If you share with third parties, their policies apply

Start by measuring the voltage on the following pins. These are typical healthy values measured on a PPTV 40C2 power supply board and are an excellent baseline for comparison:

The IC is most commonly housed in a compact 10-pin SSOP (Shrink Small Outline Package) or TSSOP-10 (Thin Shrink Small Outline Package). This small form factor makes it ideal for space-constrained modern electronics, as highlighted by multiple sources. The SN51DP is widely manufactured and distributed under several brands including ON-Bright (ON-Brigh), ON Semiconductor (ONSEMI), and Monolithic Power Systems (MPS), with some listing HAINAYU as a brand.

: Providing vibrant color rendering through stable LED current control. Industrial Lighting

The physical (e.g., SOP-8, QFN-16) of the component. Share public link