Datasheet Pdf ((new)): Sn51dp

Overvoltage Protection sensing pin to safeguard components during voltage spikes. Core Specifications & Features

Below is an overview of the technical information for the SN51DP. SN51DP Component Overview SN51DP (often identified as SN51)

The SN51DP offers several benefits to system designers and engineers:

The is a highly specialized power management controller engineered primarily for driving high-brightness LED backlights in LCD TVs, monitors, and general lighting systems . Manufactured by ON-BRIG, this chip is typically housed in a compact 10-pin SSOP-10 (or MSOP-10) package, delivering precision current regulation and voltage management to ensure stable, flicker-free display performance. Technicians and electronics engineers frequently search for the sn51dp datasheet pdf to troubleshoot power supply board failures, calculate dimming configurations, or bypass latching protection circuits during hardware diagnostics. Technical Specifications and Architecture sn51dp datasheet pdf

Finally, the datasheet provides mechanical drawings and tape/reel specifications. Verify:

: The MSOP10 footprint makes it ideal for slim devices like monitors, laptops, and tablets. Reliability

| Pin | Name / Function | Description & Typical Operation | | :--- | :--- | :--- | | | VCC (Power Supply) | The chip's main power supply input. Typically connected to a stable 12V DC rail. | | 2 | DRV (Gate Drive Output) | This is the crucial output pin. It sends a pulse-width modulation (PWM) signal to drive an external MOSFET (e.g., QB801), which switches the current through the boost converter's inductor. | | 3 | GND (Ground) | The common ground connection for the IC. | | 4 | ISEN (Overcurrent Protection) | An input for overcurrent protection (OCP). It senses the voltage across a low-value current-sensing resistor in series with the MOSFET's source to ground. If the voltage exceeds a threshold, the IC shuts down to prevent damage. | | 5 | PWM_REF (Duty Control) | Receives a reference voltage (e.g., 1.5V) that helps set the base operating point or frequency of the driver, working in conjunction with the PWM dimming signal. | | 6 | NC (No Connection) | This pin is not connected to the internal die and should be left unconnected or grounded. | | 7 | FB (Feedback Input) | Connected to a voltage divider from the high-voltage LED+ output. The IC monitors this feedback to regulate the output voltage precisely. It's also tied to the LED current setting resistors (e.g., RB837-RB840 in). | | 8 | COMP (Compensation) | Used for frequency compensation. An external RC network is often connected to this pin to ensure the stability of the control loop. | | 9 | OVP (Overvoltage Protection) | The input for overvoltage protection (OVP). It monitors the boosted LED+ voltage via a resistor divider (e.g., RB814, RB803). If the voltage exceeds a safe level, the chip stops switching. | | 10 | PWM_DIM (PWM Dimming Input) | Receives the PWM dimming signal from the TV's main processor (e.g., a 2.5V signal). The duty cycle of this signal directly controls the brightness of the backlight LEDs. | Manufactured by ON-BRIG, this chip is typically housed

During complex diagnostics, engineers often seek to bypass the built-in inverter protections to determine whether the fault lies in the IC or a degraded LED strip. According to engineering repair circles, you can override or bypass the safety protection state on an SN51DP by .

Based on your request for the datasheet, here is the information and download details.

The primary design focus of the SN51DP revolves around constant-current control, which is mandatory for ensuring long-term LED reliability and preventing thermal runaway. Verify: : The MSOP10 footprint makes it ideal

The SN51DP is a dual H-bridge motor driver IC, capable of driving two DC motors or one stepper motor. It is designed to operate at high voltages (up to 36 V) and currents (up to 2.5 A per H-bridge). The IC features a high-performance MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) architecture, which provides high efficiency, low power dissipation, and high reliability.

This is a diagnostic procedure. Leaving the IC in this state can lead to component damage if the underlying LED failure is not resolved. 5. Where to Find the SN51DP Datasheet PDF