Sn51dp Datasheet May 2026
SN51DP Datasheet: A Comprehensive Guide to Specifications, Pinouts, and Applications
Conclusion
When designing a circuit with the SN51DP, it's crucial to refer to the datasheet for detailed specifications, application notes, and typical performance curves. This information helps ensure that the operational amplifiers are used within their specified parameters, leading to reliable and efficient operation of the overall system.
Reliability & Long-Term Use
- No moving parts → high reliability.
- LED degradation over decades, but minimal under normal drive (≤20 mA).
- Temperature derating: above 80°C, output current must be reduced.
Typical Applications
- LVDS video transmission (FPD-Link, flat-panel displays)
- High-speed data links between PCBs or modules
- Camera interfaces, serializers/deserializers (SerDes) front-ends
- Industrial communication over short differential pairs
Recommended Parameters to Confirm in the Actual Datasheet
- Exact maximum data rate and VOD tolerance
- Absolute maximum ratings (Vcc, input voltages, junction temp)
- Detailed timing diagrams for enable/disable and propagation delays
- Recommended operating conditions and typical application circuit
- Package dimensions, pinout, and ordering codes
If you want, I can produce a short one-page datasheet-style summary (with assumed numeric examples filled in), a pinout diagram based on a specific package, or extract and summarize exact numerical specs if you provide the official SN51DP datasheet PDF or a link to it.
(Invoking related search terms...)
The SN51DP is a specialized Integrated Circuit (IC) primarily utilized as a backlight LED driver in modern LCD and LED televisions. Designed for power management within the display panel, it regulates the current flowing to the backlight LED strips to ensure consistent brightness and protection against voltage spikes. The chip is typically manufactured by ON-Brig and is commonly found in the power supply or scaler boards of brands like Sony, VU, and other LED TV models. Core Specifications and Technical Details
The SN51DP is engineered for precision and reliability in high-speed data and power environments. Below are the technical parameters typically found in its datasheet:
Package Type: Commonly available in MSOP-10 (Mini Small Outline Package) or SOP-10 formats, suitable for space-constrained PCB layouts.
Operating Voltage Range: It typically operates with a supply voltage between 3.5V and 7V, with a typical center around 5V.
Temperature Tolerance: Designed for industrial-grade environments, it can withstand temperatures from -20°C to +130°C.
Control Mechanism: Features PWM (Pulse Width Modulation) dimming support to adjust display brightness dynamically.
Protection Features: Includes built-in Over Voltage Protection (OVP) and thermal shutdown to prevent catastrophic board failure. Pin Configuration (MSOP-10 / SOP-10)
Understanding the pinout is critical for troubleshooting or replacement. Based on schematic data from Electronica Max and Scribd, here is the 10-pin layout: Pin Number Description VIN Main power supply input (up to 12V-22V systems) DIM PWM signal input for backlight dimming control GATE Output signal to the external MOSFET gate GND System ground CS Current sense pin to monitor LED string load ISET
Current set pin; often connected to a resistor to define max output REF Reference voltage output FB Feedback pin for voltage regulation OVP Over Voltage Protection input COMP
Compensation pin for stability of the internal error amplifier Applications in Consumer Electronics
The SN51DP is a staple in the repair industry, particularly for LCD TV backlight repair.
Inverter Protection Bypassing: Technicians often look for ways to bypass the internal protection for diagnostic purposes. For example, connecting a 10K resistor from pin 9 to GND is a known method to temporarily disable the OVP protection during testing.
Replacement & Compatibility: It is often interchangeable with specific backlight controller modules in LED TV power supplies. However, always verify the suffix and manufacturer (ON-Brig) as slight variations in pin behavior can occur between brands. Where to Source the SN51DP
If you are looking to purchase a replacement chip, several international distributors carry stock:
Utsource: Frequently lists the SN51DP with detailed stock availability and pricing.
AliExpress: Often carries bulk lots (e.g., 5PCS/LOT) under the SN51DP MSOP-10 listing for repair professionals.
Troubleshooting Tip: If a TV display "flashes" and then goes dark, the SN51DP may be detecting a fault in the LED strip and triggering its protection mode. Checking the voltage at Pin 9 (OVP) can help determine if the IC is shutting down the system due to a legitimate over-voltage condition or a faulty sensor. sn51dp datasheet
SN51DP Datasheet
Overview
The SN51DP is a differential driver and receiver that operates at high speeds and low power consumption. It is designed to transmit and receive data over long distances, making it suitable for applications that require reliable data transmission.
Features
- High-speed operation: up to 500 Mbps
- Low power consumption: 5V, 10mA (typical)
- Differential driver and receiver
- Compatible with TIA/EIA-644 (LVDS) and ANSI/SCTBA 16-1995 standards
- Fail-safe circuitry to prevent invalid outputs
- Thermal shutdown protection
- Available in small package: SOIC-8 (150mil)
Pin Configuration
The SN51DP is available in an 8-pin SOIC package. The pin configuration is as follows:
| Pin Number | Pin Name | Description | | --- | --- | --- | | 1 | VCC | Positive power supply | | 2 | GND | Ground | | 3 | DIN | Differential input | | 4 | DOUT | Differential output | | 5 | RIN | Differential receiver input | | 6 | ROUT | Differential receiver output | | 7 | EN | Enable pin (active low) | | 8 | SHDN | Shutdown pin (active low) |
Functional Description
The SN51DP consists of a differential driver and receiver. The driver section converts a single-ended input signal into a differential output signal, while the receiver section converts a differential input signal into a single-ended output signal.
Driver Section
The driver section is designed to transmit data over long distances. It has a high-impedance output when disabled, allowing multiple drivers to be connected to a single bus.
- Input: The driver input (DIN) is a single-ended input that accepts TTL/CMOS logic levels.
- Output: The driver output (DOUT) is a differential output that produces a 350mV (typical) voltage swing.
Receiver Section
The receiver section is designed to receive data from a differential source. It has a fail-safe circuitry that prevents invalid outputs when the input is shorted or open.
- Input: The receiver input (RIN) is a differential input that accepts LVDS or other differential logic levels.
- Output: The receiver output (ROUT) is a single-ended output that produces TTL/CMOS logic levels.
Control Pins
The SN51DP has two control pins: EN (Enable) and SHDN (Shutdown).
- EN (Enable): The enable pin is active low. When EN is low, the driver and receiver are enabled. When EN is high, the driver and receiver are disabled.
- SHDN (Shutdown): The shutdown pin is active low. When SHDN is low, the device enters a low-power shutdown mode.
Electrical Characteristics
The SN51DP has the following electrical characteristics:
- Supply Voltage: 4.5V to 5.5V
- Supply Current: 10mA (typical)
- Differential Output Voltage: 350mV (typical)
- Differential Input Voltage: ±100mV (typical)
- Input Threshold Voltage: 1.2V (typical)
Timing Characteristics
The SN51DP has the following timing characteristics: No moving parts → high reliability
- Propagation Delay: 2.5ns (typical)
- Skew: 0.5ns (typical)
- Rise/Fall Time: 0.5ns (typical)
Thermal Characteristics
The SN51DP has a maximum operating temperature of 125°C. The thermal characteristics are as follows:
- θJA (Thermal Resistance): 150°C/W
- θJC (Thermal Resistance): 50°C/W
Mechanical Characteristics
The SN51DP is available in an 8-pin SOIC package. The mechanical characteristics are as follows:
- Package Type: SOIC-8 (150mil)
- Lead Finish: Tin-Lead (Pb/Sn)
- Weight: 0.1g (typical)
Ordering Information
The SN51DP can be ordered in various packaging options:
- SN51DP: 8-pin SOIC package, lead-free
- SN51DPG4: 8-pin SOIC package, lead-free (tape and reel)
Conclusion
The SN51DP is a high-speed, low-power differential driver and receiver designed for use in various applications. It has a high-impedance output when disabled, allowing multiple drivers to be connected to a single bus. The device has a fail-safe circuitry that prevents invalid outputs when the input is shorted or open. The SN51DP is available in a small package and has a maximum operating temperature of 125°C.
The SN51DP is a specialized LED Driver and Power Management IC primarily used as a backlight controller for LCD/LED TVs and industrial displays. It is commonly found on mainboards such as the TP.S506.PB801 and is used in television brands like Arielli, Crown, and Felix. ## Technical Specifications Package Type: SSOP-10 or MSOP-10 (10-pin Surface Mount).
Operating Voltage: Typically operates on a 12V supply for its input (VIN). Max Operating Temp: 85°C.
Functionality: Standalone digital pulse width modulator (DPWM) for precise LED brightness control. ### Pinout Configuration (10-Pin)
Based on available schematics, the pin functions are as follows: Description 1 VIN Supply voltage input (12V typical) 2 GATE Output drive for the external MOSFET 3 GATE- Complementary or ground reference for gate 4 GND Ground connection 5 CS Current Sense (monitors LED current) 6 ISET Current setting pin (reference resistor) 7 REF Internal reference voltage 8 FB Feedback pin for voltage/current regulation 9 OVP / COMP Over-Voltage Protection or Compensation 10 DIM / OPWM Dimming control input (PWM or Analog) ### Protection & Repair Tips The IC Sn51dp schematic , ic inverter by-passing protection
The SN51DP is an ON-BRIG, 10-pin MSOP/SSOP digital pulse width modulator (DPWM) functioning as a LED TV backlight driver for brands like Arielli and Crown. Operating with a 3.5V to 7V supply and providing 8-bit resolution, this IC manages backlight, protection, and dimming in LED TV main boards. For technical details and to view the component, visit NETASHOP.GR SN51DP LED TV DRIVER - NETASHOP.GR
stands as a silent sentinel. To the outside world, it’s just a tiny SSOP10 package
—scarcely 4mm long—but to the television, it is the conductor of light. 06:00 AM – The Wake-Up Call
The power button clicks. Suddenly, 12V of potential surges toward Pin 1 (VIN). The SN51DP doesn't flinch; its internal 3.3V regulator stabilizes, and its heart—a high-precision Digital Pulse Width Modulator (DPWM)
—begins to beat. It checks its surroundings. It senses the temperature (happily operating anywhere between -20°C and 130°C) and confirms the environment is safe. 08:00 AM – The Balancing Act The morning news is on. The SN51DP is busy managing the LED backlight driver . Through its
, it sends rapid pulses to the MOSFETs, telling them exactly how long to stay open. It’s a delicate dance: Pin 10 (DIM): Receives the brightness command from the main board. Pin 5 (CS):
Constantly "feels" the current flow, ensuring the LEDs don't burn out from over-excitement. Pin 8 (COMP): Typical Applications
Smooths out the feedback loop so the screen doesn't flicker while you drink your coffee. 02:00 PM – The Crisis Averted
A sudden power spike ripples through the house. Many chips might panic, but the SN51DP has Over-Voltage Protection (OVP)
hardwired into Pin 9. It detects the danger instantly and throttles the GATE output. In some workshops, repair technicians even whisper about "bypassing" this protection with a 10K resistor on Pin 9
to test stubborn backlights, but for now, the SN51DP does its job perfectly, keeping the screen dark rather than letting it die. 11:00 PM – The Final Fade
The movie ends, and the sleep timer kicks in. The DIM signal drops to zero. The SN51DP gracefully shuts down its high-speed oscillators, its RoHS-compliant
materials resting coolly against the circuit board. It has lived through billions of cycles today, all to ensure that every pixel had the perfect amount of light. Key Specifications from the Datasheet:
Standalone Digital Pulse Width Modulator (DPWM) / LED Driver. 10-pin SSOP/MSOP. Voltage Range: 3.5V to 7V (Logic) with higher VIN for power. Common Use:
Backlight driver for LED TVs (Arielli, Crown, Felix, Hisense). schematic breakdown of how to wire the SN51DP for a custom LED project? The IC Sn51dp schematic , ic inverter by-passing protection
You are looking for a helpful blog post about the "SN51DP datasheet". I'll provide you with some general information and insights that might be useful.
What is SN51DP?
The SN51DP is a high-speed differential driver and receiver chip designed by Texas Instruments. It's commonly used in applications such as:
- High-speed data transmission
- Differential signaling
- Communication systems
Datasheet Overview
The SN51DP datasheet typically includes essential information about the chip's features, specifications, and application guidelines. Here's a brief summary of what you might find:
- Features:
- High-speed differential driver and receiver
- Operating voltage range: 3.3V to 5V
- High data rates: up to 500 Mbps (or higher, depending on the specific part number)
- Low power consumption
- Pin Configuration:
- Pinout diagram showing the various pins for power supply, input/output signals, and control signals
- Electrical Characteristics:
- Absolute maximum ratings (e.g., voltage, current, temperature)
- Recommended operating conditions
- Electrical performance characteristics (e.g., output voltage, current, and impedance)
- Switching Characteristics:
- Propagation delay times
- Setup and hold times
- Skew and jitter performance
- Application Information:
- Typical application circuits
- Guidelines for PCB layout and signal routing
- Recommendations for minimizing electromagnetic interference (EMI)
Where to Find the Datasheet
You can obtain the SN51DP datasheet from:
- Texas Instruments Website: Visit the TI website and search for the part number (SN51DP). You can download the datasheet in PDF format.
- Datasheet Directories: Websites like Datasheet4U, Alldatasheet, or Electronics Datasheet Directory often host datasheets for various electronic components, including the SN51DP.
Tips for Reading the Datasheet
When reviewing the SN51DP datasheet, keep the following tips in mind:
- Understand the part number: Verify that you're looking at the correct datasheet for your specific part number.
- Read the introduction and features section: Get an overview of the chip's capabilities and applications.
- Focus on key specifications: Pay attention to electrical characteristics, switching characteristics, and application guidelines.
The SN51DP datasheet refers to the technical specifications and documentation for the SN51DP, a specific integrated circuit (IC) designed by Texas Instruments. The SN51DP is a dual, low-power, high-speed operational amplifier that is suitable for a wide range of applications including audio, video, and other signal processing circuits.
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