Sn51dp Datasheet Pdf | Verified
, specifically designed for use in liquid crystal display (LCD) applications.
Based on technical documentation, the 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
During troubleshooting of a TV with "no backlight but sound works", technicians sometimes encounter the SN51DP dropping instantly into protection mode because of a single failing or degraded LED string.
For diagnostic purposes, some technicians remove the IC's protection by connecting a 10kΩ resistor from Pin 9 (COMP) to GND . sn51dp datasheet pdf
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In TV repair contexts, the SN51DP is often linked to a few common issues:
While a definitive "SN51DP datasheet PDF" from a primary source like Texas Instruments or STMicroelectronics does not exist, the combined technical intelligence from the field is more than sufficient. The SN51DP is a vital component in modern LED TV backlight systems, and a deep understanding of its pinout, protection features, and typical application circuit empowers engineers and technicians to design with it or, more commonly, to troubleshoot and repair it. , specifically designed for use in liquid crystal
Understanding the absolute maximum ratings of the IC is crucial before attempting any bench testing or field repairs. Exceeding these limits can permanently damage the silicon wafer. Technical Parameter Specification Metric Package Type SSOP-10 / MSOP-10 Primary Application LED TV Backlight Driver / Boost Controller Control Topology Standalone Digital Pulse Width Modulator (PWM) Maximum Operating Temperature Storage Temperature Range -65°C to 150°C Integrated Protections
In the world of power electronics and embedded system design, few components offer the blend of ruggedness, simplicity, and versatility as the Darlington transistor array. Among the various members of this component family, the stands out as a reliable workhorse for driving high-current, high-voltage loads from low-power logic circuits.
The SN51DP is built around a standard 10-pin outline. Each pin plays an essential role in stabilizing power delivery, providing feedback loops, or protecting the screen's delicate LED arrays. SN51DP Technical Overview During troubleshooting of a TV
The SN51DP operates as a standalone pulse-width modulation (PWM) controller optimized for boost topologies. It translates a low-voltage input supply into a high-voltage, regulated current output capable of driving long strings of series-connected LEDs. On-Bright Electronics Co Ltd.
: While the OB3350CP is often designed in a smaller SOP-8 pattern for simpler power stages, its internal controller logic behaves identically to the SN51DP. Be aware that you cannot drop an SOP-8 component onto an SSOP-10 circuit pad without custom wire jumpers or adapter PCBs. Common Application and Troubleshooting Practices
