Sn51dp Datasheet High Quality Site

+48V  ──┬── C1 ──┬── [SN51DP pin1]
        │        │
        + C2     └── [SN51DP pin2]
        │
        GND
[SN51DP pin3] ──┬── C3 ──┬── +5V out
│        │
+ C4     + C5
│        │
[SN51DP pin4] ──┴────────┴──── GND out

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To avoid outdated or incomplete copies, use these trusted sources:

Pro tip: Search for “SN51DP datasheet PDF” plus “application note” for design guides that complement the raw electrical tables.

Silicon vendors release errata. An old, scanned datasheet might miss the "Rev 2.1" note that changes the recommended bootstrap capacitor value from 100nF to 220nF. That single change could be the difference between a stable prototype and one that resets randomly.

The SN51DP is a high-performance integrated circuit (IC) primarily used as an LED backlight driver in modern liquid crystal displays (LCDs) and LED TVs. Manufactured by ON-BRIG, this component is essential for managing the power and brightness of backlighting systems in devices from brands like Arielli, Crown, and Hisense. Key Specifications and Features

According to the SN51DP datasheet , the IC is designed for precision and efficiency in power management. Specification Manufacturer Package Type MSOP10 / SSOP-10 (10-pin) Supply Voltage (VIN) 3.5V to 7V Operating Temperature -20°C to 130°C (Storage/Peak) Shutdown Current Below 1µA Resolution 8-bit digital pulse width modulation (DPWM) Compliance RoHS Compliant SN51DP Pinout Configuration

The 10-pin MSOP package allows for detailed control over the LED driving process: Pin 1 (VIN): Input voltage supply. Pin 2 (GATE): Output to the external MOSFET gate. Pin 3 (OVP): Over-voltage protection sense pin. Pin 4 (GND): Common ground. Pin 5 (FB): Feedback input for regulating LED current. Pin 9 (DIM): Dimming control input (PWM or Analog). High-Quality Performance Benefits sn51dp datasheet high quality

Precision Dimming: Offers 8-bit resolution for smooth brightness transitions in TV backlights.

Robust Protection: Includes integrated Over-Voltage Protection (OVP) and thermal coefficients to ensure long-term reliability in high-heat environments like TV enclosures.

Energy Efficiency: A shutdown current of less than 1µA makes it highly suitable for energy-star rated consumer electronics.

Low Jitter: Designed for stable operation, reducing screen flicker and improving visual quality. Common Applications

While its primary role is in LED TV Backlight Drivers (specifically for mainboards like TP.S506.PB801), it is also versatile enough for other specialized electronics :

Computer Monitors: Providing vibrant color and brightness control. Automotive Lighting: Used in high-brightness LED projects.

Industrial Displays: Reliable lighting for durable equipment. DC Motor Speed Control: Utilizing its PWM capabilities.

For repair technicians, a common service tip to test or bypass the inverter protection involves connecting a 10K resistor from Pin 9 to GND, though this should only be done for diagnostic purposes. The IC Sn51dp schematic , ic inverter by-passing protection Pro tip: Search for “SN51DP datasheet PDF” plus

is a standalone digital pulse width modulator (DPWM) IC primarily used for precision control in DC motors, LED lighting, and mission-critical systems. Technical Specifications Summary

The high-quality performance of this chip is driven by the following parameters: Precision Control:

Offers a programmable resolution of up to 8-bits for high-speed pulse width modulation. Power Efficiency: Features a typical quiescent current of just and a wide supply voltage range of Operating Conditions: Supports an industrial temperature range from negative 40 raised to the composed with power cap C 85 raised to the composed with power cap C , with specialized variants reaching negative 55 raised to the composed with power cap C positive 125 raised to the composed with power cap C Stability:

Designed for low jitter operation and exceptional output stability, making it suitable for aerospace and defense electronics. User Review Highlights Based on verified purchase feedback from distributors like IC-Components , the SN51DP is highly regarded for its reliability: Design Accuracy: Users noted that the datasheet matches real-world behavior closely, with no surprises during development. Reliability:

Multiple reviewers confirmed that the ICs worked perfectly for programming and testing, showing stable performance across batches. Minor Concerns:

One user reported instability when pushing the chip close to its maximum clock frequency, and another noted that packaging (bent leads) could be improved. IC Components

For detailed procurement or specific circuit diagrams, you can check availability at full PDF datasheet for this component? SN51DP EMI | IC-Components

is a standalone Digital Pulse Width Modulator (DPWM) integrated circuit designed for high-precision control in power management and motor systems. Deep Feature: High-Speed Precision Pulse Width Resolution The standout capability of the SN51DP is its high-speed, programmable 8-bit resolution Silicon vendors release errata. An old

, which allows for ultra-fine adjustments to the duty cycle. Unlike standard analog PWM controllers that may suffer from signal drift, this digital implementation ensures: Exceptional Output Stability : Minimal signal drift across a wide temperature range ( negative 55 raised to the composed with power C positive 125 raised to the composed with power C

), essential for maintaining accurate voltage regulation in "set-and-forget" industrial environments. Low Jitter Operation

: The on-chip 3.3V regulator and integrated power/ground planes minimize internal switching noise, ensuring the pulse timing remains consistent even in high-frequency applications. Ruggedized Integration : The IC features built-in ESD protection on all I/O pins and is often housed in a hermetic dual-in-line package (DIP)

to resist moisture and contamination in harsh deployment zones. Technical Resources & Sourcing Datasheet & Specs Procurement Detailed Specifications

Technical summaries for the SN51DP, including its 8-bit resolution and thermal coefficients, are available at

. This source provides the primary functional breakdown for the IC.

For environmental compliance and MIL-STD standards related to this component series, refer to the documentation on Alibaba's component directory , which highlights its stability in extreme temperatures. Where to Buy

The SN51DP is often listed through specialty electronics distributors. You can check current stock levels and lead times at UTSource.net ARM-based PWM controllers for your specific application? SN51DP | In Stock | Utsource