Sn51dp Datasheet

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

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. sn51dp datasheet

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

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

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.

Equivalent Parts and Substitutions

Finding an exact SN51DP replacement can be difficult. If you are repairing a board and cannot source the original, consider these cross-reference options (check pinout compatibility first):

Important: Always cross-check the pin function, not just pin count. The SN51DP pin 5 is Compensation; many modern parts use that pin for Shutdown. Connecting incorrectly will cause instability or failure.

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...)

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 digital pulse width modulator (DPWM)

, 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?

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: Equivalent Parts and Substitutions Finding an exact SN51DP

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.

5. PCB Layout

Keep the path of D1, L1, and SW pin as short and wide as possible.
Separate the ground of the feedback divider from the high-current ground paths (star grounding).