Sn51dp Datasheet -
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The SN51DP is a well-designed, reliable phototriac coupler ideal for microcontroller-driven AC switching where low EMI and simplicity are priorities. It excels in resistive load control (heaters, lights) and as a driver for larger triacs. The zero-crossing feature makes it superior to non-zero-crossing types for most on/off control applications.
Best for:
Avoid if:
Pro tip: Always include a gate resistor and a snubber (RC) across the external power triac when switching inductive loads like fans or transformers.
Would you like a sample PCB layout or snubber calculation for this part?
The SN51DP is an MSOP-10 package, Standalone Digital Pulse Width Modulator (DPWM) driver IC designed by On-Bright to manage backlight LEDs in modern displays. Detailed technical specifications reveal key functionalities including 8-bit precision brightness control via the DIM pin, over-voltage protection (OVP), and high-speed gate driving to manage LED intensity and system safety. Read the full technical specifications at Electronica Max. SN51DP - Electronica Max
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
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.
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):
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) integrated circuit designed for high-precision control in power and lighting systems. Key Features
According to the technical details provided by Utsource, the SN51DP offers:
Precision Resolution: High-speed pulse width modulation with programmable resolution up to 8-bits.
Integrated Power Management: Features an on-chip 3.3V regulator and integrated power and ground planes to simplify circuit design.
Stability: Low jitter operation for consistent signal output.
Protection: I/O pins and internal connections are ESD protected to prevent damage from static discharge. Applications
The device is primarily used for systems requiring fine-tuned electrical control, including: Motor Control: Speed control for DC motors. Lighting: LED lighting brightness and dimming control.
PWM Systems: General-purpose pulse-width modulation control systems.
Aerospace & Defense: High-reliability deployment in flight control units, radar modules, and secure communication devices due to its resistance to electromagnetic interference. Pin Configuration & Package sn51dp datasheet
Form Factor: Often found in a 16-pin configuration for integrated circuit (IC) setups.
Manufacturer/Availability: This part is commonly listed by electronics suppliers like Alibaba and Utsource, though it is not a widely standardized part number across all major semiconductor manufacturers. SN51DP | In Stock - Utsource
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:
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
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:
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:
Where to Find the Datasheet
You can obtain the SN51DP datasheet from:
Tips for Reading the Datasheet
When reviewing the SN51DP datasheet, keep the following tips in mind:
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.
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.
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 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
is a standalone digital pulse width modulator (DPWM) and power management integrated circuit (IC) primarily used as an LED backlight driver
in liquid crystal display (LCD) applications, such as TVs and monitors. It is manufactured by
and is often found on mainboards like the TP.S506.PB801 used in brands such as Arielli, Crown, and Hisense. NETASHOP.GR Technical Specifications Manufacturer Package Type MSOP-10 or SSOP-10 Supply Voltage ( cap V sub cap I cap N end-sub 3.5V to 7V Operating Temperature -20°C to 130°C Resolution Up to 8-bit programmable pulse width Dimensions 3.9mm (L) x 7.9mm (W) x 1.7mm (H) Key Features Integrated Power Management:
Features an on-chip 3.3V regulator and integrated power/ground planes for stable operation. Precision Control: High-speed pulse width resolution with low jitter. Protection Circuitry: I/O pins and internal connections are ESD protected. Equivalents/Analogs: Can often be replaced by the (though the OB3350CP typically uses a SOP-8 package). Pin Configuration (Typical 10-Pin)
Based on application schematics, the pinout typically includes: cap V sub cap I cap N end-sub (Supply Voltage) DIM (Dimming Control) GATE (Drive output for MOSFET) GND (Ground) ISET (Current setting) CS (Current Sense) FB (Feedback)
OVP (Over Voltage Protection) — Protection can sometimes be bypassed for testing by connecting a 10K resistor from this pin to GND. Common Applications LED TV/Monitor Repair:
Used extensively in the backlight driver circuits of LCD panels. DC Motor Speed Control:
Utilizing its DPWM capabilities for precise speed management. General PWM Systems:
Suitable for any system requiring programmable LED lighting control. or a list of for this specific IC? The IC Sn51dp schematic , ic inverter by-passing protection
(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
A: Yes, due to its BJT design, efficiency is lower (70-80%). A heat sink is mandatory above 500mA. Consider a modern alternative (e.g., LM2596) for new designs.
The SN51DP incorporates a zero-crossing detection circuit. This means the output triac turns on only when the AC mains voltage is near zero (within ~±20V).
Benefits:
Limitation: Not suitable for phase-control dimming (e.g., light dimmers) because zero-crossing forces full-cycle switching.
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...)
Most SN51DP datasheets include:
Missing in some versions: