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
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.
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.
Control Pins
The SN51DP has two control pins: EN (Enable) and SHDN (Shutdown).
Electrical Characteristics
The SN51DP has the following electrical characteristics:
Timing Characteristics
The SN51DP has the following timing characteristics:
Thermal Characteristics
The SN51DP has a maximum operating temperature of 125°C. The thermal characteristics are as follows:
Mechanical Characteristics
The SN51DP is available in an 8-pin SOIC package. The mechanical characteristics are as follows:
Ordering Information
The SN51DP can be ordered in various packaging options:
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. sn51dp datasheet
Note: If you have a specific manufacturer’s variant in mind (e.g., ISOCOM, Vishay), the core specs remain similar, but always verify with the exact datasheet.
A: According to internal block diagrams from older datasheets, the SN51DP uses a bipolar junction transistor (BJT) as the power switch, not a MOSFET. This explains its higher saturation voltage (0.8V typical) compared to modern MOSFET-based converters.
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...)
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):
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
The SN51DP is a standalone Digital Pulse Width Modulator (DPWM) IC designed for precision control in power electronics. While it is a specialized component, its ability to manage high-speed, high-resolution pulses makes it a cornerstone for modern digital power systems. Key Specifications & Features
Based on technical listings from retailers like Utsource, here are the primary attributes of the SN51DP:
Core Function: Operates as a standalone modulator to convert digital signals into high-precision pulse width modulation (PWM) outputs.
Resolution: Offers a programmable resolution of up to 8-bits, allowing for fine-tuned control over output signals.
Performance: Features low jitter operation, which is critical for maintaining stability in sensitive timing applications.
On-Chip Regulation: Includes an integrated 3.3V regulator, simplifying the external circuit requirements by providing its own stable voltage source.
Protection: Equipped with ESD protection on both I/O pins and internal connections to safeguard against static discharge during handling. Common Applications
The SN51DP is typically used in circuits where precise, digital control of power is necessary: SN51DP Datasheet Overview The SN51DP is a differential
DC Motor Control: Regulating motor speed with high precision.
LED Lighting: Managing dimming and brightness levels in advanced lighting systems.
PWM Control Systems: Acting as a general-purpose controller in various pulse-modulated power stages.
Inverter Protection: Frequently utilized in inverter circuits for bypassing protection or monitoring system health. Quick Integration Guide Logic Voltage 3.3V (provided by internal regulator) Interface Digital Pulse Width Modulation Stability Low Jitter architecture Robustness Integrated power and ground planes for reduced noise
For those looking for a detailed SN51DP datasheet PDF, it is occasionally hosted on community drives such as this Google Drive link or specialized parts databases. The IC Sn51dp schematic , ic inverter by-passing protection
SN51DP Datasheet: A Comprehensive Guide to the High-Speed Differential Driver
The SN51DP datasheet is a crucial document for engineers and designers working with high-speed differential drivers. The SN51DP is a popular integrated circuit (IC) designed for driving differential signals over long distances, making it an essential component in various applications, including telecommunications, data communications, and video transmission systems. In this article, we will provide an in-depth analysis of the SN51DP datasheet, covering its features, specifications, and applications.
Overview of the SN51DP
The SN51DP is a high-speed differential driver IC manufactured by Texas Instruments. It is designed to drive differential signals over long distances, making it suitable for applications requiring high-speed data transmission. The IC operates at a wide range of supply voltages, from 3.3V to 5V, and features a high-speed output driver capable of delivering signals at speeds of up to 500 Mbps.
Key Features of the SN51DP
The SN51DP datasheet highlights several key features that make this IC an attractive choice for high-speed differential driving applications:
Specifications of the SN51DP
The SN51DP datasheet provides a detailed list of specifications, including:
Applications of the SN51DP
The SN51DP is a versatile IC suitable for various applications, including:
Typical Circuit Configuration
The SN51DP datasheet provides a typical circuit configuration for using the IC in a differential driver application. The circuit configuration includes:
Conclusion
In conclusion, the SN51DP datasheet provides a comprehensive overview of the high-speed differential driver IC. The SN51DP is a versatile IC suitable for various applications, including telecommunications, data communications, and video transmission systems. Its features, such as high-speed output driver, differential output, and low power consumption, make it an attractive choice for engineers and designers. By understanding the specifications and applications of the SN51DP, designers can effectively use this IC in their designs and develop high-performance systems.
Additional Information
For more information on the SN51DP, including ordering information, packaging, and environmental information, refer to the Texas Instruments website or consult the SN51DP datasheet.
References
By following this article, engineers and designers can gain a deeper understanding of the SN51DP datasheet and effectively use this IC in their designs.
The SN51DP is a power management IC primarily used as an LED backlight driver for liquid crystal display (LCD) televisions. Manufactured by On-Bright Electronics, it is commonly found in TV repair contexts, often replaced by or cross-referenced with the OB3350 CP driver IC. Key Technical Specifications Based on manufacturer data and technical listings features the following: Package Type: MSOP-10 (10-pin Surface Mount). Operating Voltage: Minimum 3.5V to Maximum 7V. Temperature Range: Operating from -20°C to 130°C.
Main Function: Standalone digital pulse width modulator (DPWM) for precision LED lighting and DC motor control. Pinout and Schematic Details
The IC typically utilizes a 10-pin configuration to manage power and feedback for LED backlights: Pin 1 (VIN): Input voltage. Pin 2 (GATE): Output to drive the external MOSFET. Pin 3 (GND): Ground connection. High-speed operation: up to 500 Mbps Low power
Pin 4 (CS): Current sense for protecting and regulating output. Pin 8 (OVP): Over-voltage protection. Pin 10 (DIM): Dimming control input. Common Applications and Issues
Technicians often encounter this chip when troubleshooting LED TV backlight failures where the display remains dark but sound is present.
Troubleshooting: If the output voltage to the LEDs is too low (e.g., ~25V for a 32-inch screen), the IC may be defective.
Replacement: It is often sold in multi-packs on sites like AliExpress for industrial and home electronics repair.
Reliability: Operating near its maximum junction temperature (125°C) in sealed enclosures can significantly reduce its lifespan. LED driver IC replacement.
As you dive into your next power management or motor control project, finding the right Digital Pulse Width Modulator (DPWM) is key to achieving precision. The , manufactured by On-Bright Electronics
, is a standalone IC designed to bridge the gap between digital control logic and analog execution.
Here is a breakdown of what the SN51DP brings to your PCB design. Key Specifications & Features According to technical data from
, the SN51DP is built for high-speed, low-jitter performance. Precision Control
: Features high-speed pulse width resolution, programmable up to Integrated Power Management : Includes an on-chip 3.3V regulator , simplifying your power rail requirements. Robustness : All I/O pins and internal connections feature ESD protection to ensure longevity in industrial environments. Compact Footprint : Typically available in an package, making it suitable for space-constrained designs. Compliance : The component is RoHS Compliant and lead-free. Common Applications
The SN51DP is versatile enough for several high-demand sectors: DC Motor Control
: Providing the precise timing needed for variable speed drives. LED Lighting : Managing brightness through stable PWM dimming. PWM Control Systems
: Acting as a dedicated timing controller to offload tasks from a primary MCU. Design Considerations
While the SN51DP is a powerful niche component, it is not as ubiquitous as standard logic gates. When integrating it: Check Stock Early
: You can find current availability through distributors like IC-Components Thermal Management
: Ensure the MSOP10 package has adequate copper pour around the ground pins, as standalone modulators can generate heat during high-frequency switching.
Whether you're retrofitting an industrial controller or building a custom LED driver from scratch, the SN51DP offers a compact, digital-first solution for pulse width modulation. compatible alternative for this chip?
(also referred to as SN510P) is an integrated circuit primarily used as a LED TV Backlight Driver
. It is a standalone digital pulse width modulator (DPWM) controller designed to manage high-brightness LED arrays in modern flat-panel displays. NETASHOP.GR Core Specifications Package Type: 10-pin SSOP (Shrink Small Outline Package). Maximum Operating Temperature: Up to 85°C. Input Voltage: Typically operates on a 12V supply for the VCC/VIN line. Functions:
Provides high-speed, precision pulse width resolution (up to 8-bit) and low jitter operation. Pin Configuration (SSOP-10) Based on technical diagrams from Electronica Max , the pinout is generally as follows: Description Power supply input (typically 12V) Dimming control input (PWM or Analog) Over-Voltage Protection sense Secondary gate or control line System ground Internal reference voltage Feedback for LED current monitoring Current sense input Compensation pin for control loop stability Output drive signal to the external MOSFET Applications & Substitutes Common Use:
Found in LED TVs from brands like Arielli, Crown, Felix, and Vu. Replacement: In repair scenarios, the is often cited as a compatible substitute or similar part. Typical Board: Often integrated into main boards like the TP.S506.PB801 NETASHOP.GR Typical Repair Issues Technicians from Electronics Repair News
report that failure often results in the backlight not turning on despite receiving correct supply (12V) and "BL_ON" signals. When replacing the IC, it is critical to verify the output filter capacitor; using a low-voltage capacitor (e.g., 35V instead of 100V) can cause the protection circuit to trigger or the component to fail. protection-bypass techniques for testing? SN51DP - Electronica Max
The most common use of the SN51DP in available documentation is a 12V-to-5V or 24V-to-5V step-down converter. Below is a typical schematic based on the datasheet reference design.
Components List:
Operation Summary: The internal oscillator switches the internal bipolar or MOSFET transistor at ~60kHz. When the switch turns on, current flows through L1 to the output. When off, D1 freewheels the inductor current. The FB pin compares the output voltage (divided by R1/R2) to the internal 1.23V reference, adjusting the duty cycle to maintain regulation.