Description
The STK795-518 is a genuine Sanyo self-oscillation chopper-type voltage regulator. This high-precision hybrid IC is a vital replacement part for modern flat-panel displays, most notably used in the sustain and Y-main boards of large-screen Plasma TVs to regulate high-voltage power rails.
Key Features:
- High-Accuracy Output: Utilizes functional trimming technology to set a precise 5V output with industry-leading accuracy.
- Chopper-Type Regulation: Provides efficient switching regulation, converting high-voltage DC input (up to 40V) into stable power for internal TV circuitry.
- External Cutoff Function: Features a built-in cutoff mechanism that allows the system to disable output voltage via an external signal for enhanced safety.
- Overcurrent Protection: Includes an integrated transistor for overcurrent protection, helping to prevent catastrophic board failure during electrical surges.
Specifications & Compatibility:
- Manufacturer: Sanyo (Panasonic)
- Package Type: SIP-ZIP (Multi-pin Hybrid)
- Max DC Input: 40V
- Max Output Current: 3A
- Common Applications: Specifically used in Plasma TV boards such as LJ92-01200A and LJ41-02759A.
Repair Professional Note: If your Plasma TV has a "no picture but has sound" symptom or is clicking into standby mode, a failed STK795-518 on the sustain board is a very common culprit. Always use fresh thermal grease when mounting the new module to the heatsink.