SSL5031BTS - Silergy

SSL5031BTS Compact high power factor/low-THD buck LED driver

The SSL5031BTS is a highly integrated, high-precision, non-isolated buck controller with external MOSFET. It is intended to drive LED lamps in universal mains non-dimmable lighting applications up to 25 W. The SSL5031BTS is designed for high power factor/low-THD applications. The SSL5031BTS operates in Boundary Conduction Mode (BCM) with on-time regulation. .

Features

 Driving LED strings from a rectified mains supply, high power factor/low-THD
 Small electronic Bill of Materials (BOM) enabling a compact solution and a small, single layer Printed-Circuit Board (PCB) footprint
 Excellent line and load regulation and LED output current accuracy
 Efficient BCM operation with:  Minimal reverse recovery losses in freewheel diode  Zero Current Switching (ZCS) and valley switching for switch turn-on  Minimal inductance value and size required  High efficiency (up to 91 %)  Ultra low IC current during operation (< 150 A)
 Auto-recovery protections:  Und.