Sn51dp Datasheet Pdf ((hot))

The SN51DP is a high-speed, low-power, differential protocol transceiver chip from Texas Instruments. Here are some key features related to the SN51DP datasheet:

Overview

• The SN51DP is a differential protocol transceiver designed for high-speed, low-power applications.
• It supports data rates up to 500 Mbps.

Key Features

1. Differential Signaling: The SN51DP uses differential signaling to achieve high-speed data transmission over long distances, reducing electromagnetic interference (EMI) and radio-frequency interference (RFI).
2. Low Power Consumption: The device operates at a low power consumption of 1.2 mA (typical) at 3.3 V.
3. High-Speed Data Transmission: The SN51DP supports data rates up to 500 Mbps, making it suitable for high-speed applications.
4. Wide Operating Voltage Range: The device operates over a wide voltage range of 2.7 V to 3.6 V.
5. Temperature Range: The SN51DP operates over a temperature range of -40°C to 85°C.

Signal Integrity Features

1. Driver Output Slew Rate Control: The device has a slew rate control feature to reduce electromagnetic interference (EMI) and improve signal integrity.
2. Receiver Input Hysteresis: The SN51DP has a receiver input hysteresis feature to improve noise immunity.

Protection Features

1. Undervoltage Lockout (UVLO): The device has an undervoltage lockout feature to prevent device damage due to low voltage.
2. Thermal Shutdown: The SN51DP has a thermal shutdown feature to prevent overheating.

Package and Pinout

• The SN51DP is available in a small, 8-pin WSON (3 mm × 3 mm) package.
• The device has a standard pinout for differential transceivers.

Applications

1. High-Speed Data Communication Systems
2. Industrial Control Systems
3. Medical Equipment
4. Aerospace and Defense Systems

The SN51DP is a specialized power management Integrated Circuit (IC) primarily used as an LED backlight driver in liquid crystal display (LCD) applications. Manufactured by ON-Brig, this component is commonly found in the inverter and scaler boards of LED TVs from brands such as Arielli, Crown, Felix, and Hisense. Technical Specifications & Features

The SN51DP is designed to provide high-speed, precision pulse-width modulation (PWM) for controlling the brightness and stability of LED strips.

Package Type: Compact 10-pin SSOP10 or MSOP10 encapsulation.

Operating Temperature: Rated for stable performance up to a maximum of 85 °C. sn51dp datasheet pdf

Modulation: Functions as a standalone digital pulse width modulator (DPWM) with programmable resolution.

Safety: Includes on-chip 3.3V regulation, low jitter operation, and ESD protection on I/O pins.

Compliance: RoHS compliant, ensuring environmental safety standards are met. Pinout Configuration

The IC utilizes its 10 pins to manage power delivery and feedback loops for the backlight system: Pin Number Voltage Input Output to drive the external MOSFET Current Sense Current Setting/Reference Voltage Reference Feedback for voltage regulation Compensation pin for stability Over-Voltage Protection Dimming control input (PWM/Analog) Applications & Repair Use Cases

While specifically tailored for TV and monitor backlighting, the SN51DP's versatility allows for broader use:

LED TV Repair: It is a critical component for fixing "no backlight" issues in various 32-inch to 43-inch LED TVs.

Motor Control: Used in basic DC motor speed control systems.

Industrial Lighting: Ideal for high-brightness LED applications requiring durable drivers. Troubleshooting & Maintenance

When diagnosing issues with the SN51DP in LED backlight systems, technicians often focus on the feedback and protection pins. If the backlight fails to ignite or shuts down shortly after powering on, it may indicate that the IC has entered a protection state due to a detected fault in the LED strings or an over-voltage condition. Safe diagnostic procedures include:

Checking Input Voltage: Ensuring the VIN pin receives the stable voltage required for operation. The SN51DP is a high-speed, low-power, differential protocol

Inspecting LED Strips: Testing individual LED segments to ensure there are no open or short circuits triggering the protection mode.

Verifying Feedback Loops: Checking the components connected to the FB (Feedback) and CS (Current Sense) pins to ensure the IC is receiving accurate data regarding the circuit's status. Technical Documentation & Resources

For detailed electrical characteristics, timing diagrams, and application circuits, the datasheet is the primary resource. Documentation for specialized ICs like the SN51DP can often be sourced through electronic component distributors and specialized technical databases:

Component Databases: Platforms such as Alldatasheet or DatasheetCatalog often host PDF versions of specifications for various semiconductor manufacturers.

Supplier Specifications: Global distributors like Utsource provide functional descriptions and key attributes for the SN51DP.

Service Manuals: Schematic diagrams for specific television models from brands like Hisense or Crown often include the implementation details of the SN51DP within the power or scaler board sections.

Accessing the full PDF datasheet ensures that all operating parameters, such as the exact PWM frequency and threshold voltages for the OVP (Over-Voltage Protection) pin, are strictly followed during repair or design. SN51DP LED TV DRIVER - NETASHOP.GR

Based on technical documentation, the SN51DP is a specialized LED TV Backlight Driver IC primarily manufactured by ON-BRIG. It is frequently found in LED TV mainboards such as the TP.S506.PB801 for brands like Arielli, Crown, and Felix. SN51DP Technical Overview

The SN51DP functions as a standalone digital pulse width modulator (DPWM) designed for high-efficiency power management in LCD/LED displays. 1. Key Specifications Manufacturer Package Type MSOP10 / SSOP10 Supply Voltage (Vcc) 3.5V to 7V Operating Temp -20°C to 130°C Applications LED Backlight Driving, DC Motor Control 2. Pin Configuration (10-Pin Layout) According to typical application circuits: Pin 1: VIN (Supply Input) Pin 2: GATE (Drive output for MOSFET) Pin 3: GND (Ground) Pin 4: CS (Current Sense) Pin 5: ISET (Current Setting) Pin 6: REF (Reference Voltage) Pin 7: FB (Feedback) Pin 8: COMP (Compensation)

Pin 9: OVP (Over-Voltage Protection) — Repair Tip: To bypass protection, connect a 10K resistor from this pin to GND. Pin 10: DIM (Dimming Control) 3. Functional Features The SN51DP is a differential protocol transceiver designed

High-Speed Precision: Offers fine pulse width resolution, often programmable up to 8-bits.

Internal Regulation: Includes an on-chip 3.3V regulator and low-jitter operation.

Integrated Protection: Features ESD protection on I/O pins and dedicated Over-Voltage Protection (OVP). Data Resources

For full schematic diagrams and original PDF files, you can refer to the following sources: Technical PDF Viewer: Electronica Max - SN51DP PDF Inventory & Detailed Specs: Utsource - SN51DP Product Page Community Repair Notes: Jestine Yong - IC Failure Solutions

For further assistance with this component, the following information can be provided:

Identification of compatible replacement parts based on technical specifications.

General principles of operation for DPWM controllers in power management.

A list of common TV models and boards that utilize this specific driver IC. The IC Sn51dp schematic , ic inverter by-passing protection

6. Typical Application Circuit (The Schematic Blueprint)

This is the most practical page. It shows the recommended external components:

• Input/output capacitors: Specified by type (e.g., X5R/X7R ceramic) and value.
• Inductor: Recommended inductance (e.g., 10µH) and saturation current rating.
• Feedback resistors: Calculated to set V_OUT = V_REF * (1 + R1/R2).
• Bootstrap capacitor (C_BST): Essential for high-side gate drive.

Helpful advice: Do not deviate from the recommended component values or layout until you fully understand the design. Copy the example circuit exactly for your first prototype.

Section D: Typical Application Diagram

This is gold. For the SN51DP, you will likely see a classic flyback or forward converter topology.

• The Transformer: Look at the dot notation (phase). Winding orientation is critical.
• The Snubber: A resistor-capacitor-diode network across the primary winding. Without this, voltage spikes from leakage inductance will kill the main transistor.
• Feedback Loop: Usually involves a TL431 programmable shunt regulator and an optocoupler (e.g., PC817). The SN51DP drives the opto, which drives the FB pin.

Section A: Features and Description

The first page is your executive summary. Look for keywords:

• "High Voltage" – Expect a startup voltage >100V.
• "Current Mode" or "Voltage Mode" – This tells you how the regulator responds to load changes.
• "Oscillator Frequency" – e.g., 50kHz to 500kHz. This affects your transformer core material.