Sn51dp Datasheet Verified 🔖 ⏰
Feedback voltage input; samples output voltage loop data to maintain precise current regulation. COMP
Control of LED backlighting in flat-screen TVs (e.g., Hisense, Arielli, Crown) and computer monitors.
Over-Voltage Protection sensing input; automatically trips when the backlight circuit goes open. REF Internal reference voltage output filter point. Key Technical Specifications & Operating Principles sn51dp datasheet verified
High-frequency operation allows for the use of smaller inductors and capacitors.
– Samples output voltage through a resistor divider to shut down switching if open-circuit strings cause voltage spikes. Circuit Dynamics and Protection Mechanisms Feedback voltage input; samples output voltage loop data
Furthermore, the SN51DP is often listed as a substitute or equivalent to other driver ICs. One of the most frequently cited direct equivalents is the , which performs a nearly identical function in a similar application circuit. The part number SN510P also appears to be functionally identical to the SN51DP, with sources and forums using the names interchangeably. Crucially, before assuming a substitute will work in your specific board, compare the pinouts of the original and replacement ICs, as they must match exactly.
While many datasheets provide a simplified block, the verified internal circuit confirms the presence of: REF Internal reference voltage output filter point
In LED TV repair, the SN51DP is sometimes replaced by the IC, though this may require slight circuit adjustments to ensure stable operation. For replacement parts, you can check inventories at Utsource or Netashop . Key Application Areas
The (also identified as SN510P ) is an LED backlight driver integrated circuit commonly used in LCD/LED televisions and monitors. It is often manufactured by brands like On-Bright and is specifically designed for power management in display backlighting. Key Specifications
LED Current Setting. A resistor connected from this pin to ground defines the constant output current driving the backlight strip.
While locating a single, official manufacturer datasheet for the SN51DP is challenging, a systematic process of cross-referencing and verification can yield a reliable and practical understanding of the component. Confirming technical details like the input voltage, critical protection pins (Pin 4 for OCP, Pin 9 for OVP), and typical application circuits through multiple sources ensures your datasheet is truly "verified" for your work.