The SN51DP is a specialized power management integrated circuit (IC) primarily utilized as a high-performance LCD backlight driver. It functions as a digital pulse width modulator (DPWM) designed to control DC motor speed and LED lighting systems with high precision. Technical Specifications
The SN51DP is manufactured by ON-BRIG and is commonly available in an MSOP10 or SSOP10 package. Parameter Specification Supply Voltage Range 3.5V to 7.0V Operating Temperature -20°C to +130°C Resolution Up to 8-bit programmable Integrated Features
On-chip 3.3V regulator, ESD protection, and power/ground planes Dimensions 3.9mm (L) x 7.9mm (W) x 1.7mm (H) Pin Configuration (MSOP10)
Based on available schematics, the device features a 10-pin layout tailored for PWM dimming and over-voltage protection:
Pin 1 (VIN): Power input (typically 12V in some application circuits). Pin 2 (GATE): Output to the external switching transistor. Pin 3 (OVP): Over-voltage protection. Pin 4 (GND): System ground. Pin 5 (CS): Current sense input. Pin 9 (GATE OVP/PROT): Protection pin; a 10k Ωcap omega
resistor to ground is sometimes used to bypass internal protection for testing. Pin 10 (DIM): PWM dimming control input. Key Features & Applications
High Precision: Offers high-speed pulse width resolution with low jitter operation.
Eco-Friendly: The component is RoHS compliant, meeting international environmental safety standards. sn51dp datasheet high quality
Applications: Primarily found in LCD panel backlighting, LED lighting control systems, and DC motor speed regulation. Availability
Stockists: Components can be sourced through specialized distributors like Utsource or AliExpress.
Documentation: Detailed PDF diagrams are available via Electronica Max and AG Electronica. SN51DP | In Stock - Utsource
A very specific request!
After conducting a search, I found a few datasheets for the SN51DP chip. Here are a few options:
You can download the datasheet directly from TI's website: SN51DP datasheet (PDF)
You can view the datasheet on Digi-Key's website: SN51DP datasheet (HTML) The SN51DP is a specialized power management integrated
You can view the datasheet on Allied Electronics' website: [SN51DP datasheet (PDF)](https://www.alliedele.com/ems/tem/_datasheet/ 1/ 0/ 12182_SN51DP.pdf)
Comparing the datasheets:
All three datasheets appear to be high-quality and provide detailed information on the SN51DP chip. However, I noticed that the Texas Instruments datasheet seems to be the most comprehensive and up-to-date.
If you're looking for a high-quality datasheet, I would recommend using the official Texas Instruments datasheet.
SN51DP Overview:
For those who may not be familiar with the SN51DP chip, here is a brief overview:
The SN51DP is a high-speed, low-power differential driver and receiver chip designed for use in various applications, including: Texas Instruments Datasheet : The official datasheet for
The chip features:
Top View (SN51DP-XX-X)
1 → +Vin (Input Positive) 2 → –Vin (Input Ground) 3 → +Vout (Output Positive) 4 → –Vout (Output Ground) 5 → NC or Trim (optional)
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