The S6613/4 chip integrates a high-voltage power switch, adopts the patented demagnetization detection technology and power supply technology, and does not need auxiliary winding detection and power supply; while simplifying the number of peripheral components of the overall solution, the chip and the system itself have a very high cost performance without auxiliary Winding detection and power supply integrated ultra-high voltage power switching device within 24W without absorption circuit

One: Scheme name: S6613-S6614 isolated primary side feedback no absorption loop LED constant current control scheme

Two: Scheme brand: SDS (independent research and development)

Three: Program functions and features

1. There is no need for auxiliary winding detection and power supply, and high-voltage power switching devices are integrated. The S6613S is available in an SOP-7 package. S6613D and S6614D in DIP-7 package

2. ±5%_LED output current accuracy, LED short circuit protection, LED open circuit protection

3. Built-in input line voltage compensation, cycle-by-cycle current limit and leading edge blanking, thermal regulation function

Four: program description

S6613/4 is a series of high-precision primary-side feedback LED constant-current control switch chips. Working in discontinuous mode of inductor current, it is suitable for isolated flyback LED constant current power supply with full range input voltage of 85Vac-265Vac. The 6613/4 chip integrates a high-voltage power switch, adopts the patented demagnetization detection technology and power supply technology, and does not require auxiliary winding detection and power supply; while simplifying the number of peripheral components of the overall solution, the chip and the system itself have extremely high cost performance.

Five: LED downlights, PAR lights, LED panel lights, plug-in lights, waterproof power supplies, other LED lighting