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SSL5231BT - Mains-dimmable buck LED driver

General Description

The SSL5231BT is a highly integrated, high-precision buck controller with an external MOSFET.

It is intended to drive LED lamps in dimmable lighting applications up to 25 W.

The SSL5231BT is designed for high power factor, phase-dimmable applications.

Key Features

  • Supports most available dimming solutions.
  • Deep dimming level.
  • Flicker-free dimming.
  • Low component count ensuring a compact solution and small, single layer Printed-Circuit Board (PCB) footprint.
  • Excellent line regulation and load regulation and good LED output current accuracy.
  • Efficient BCM operation with:.
  • Minimal recovery losses in freewheel diode.
  • Zero Current Switching (ZCS) and Valley switching for turn-on of switch.
  • Minimum inductance value a.

📥 Download Datasheet

Datasheet Details

Part number SSL5231BT
Manufacturer Silergy
File Size 238.68 KB
Description Mains-dimmable buck LED driver
Datasheet download datasheet SSL5231BT Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SSL5231BT Mains-dimmable buck LED driver IC Rev. 1 — 13 March 2015 Product data sheet 1. General description The SSL5231BT is a highly integrated, high-precision buck controller with an external MOSFET. It is intended to drive LED lamps in dimmable lighting applications up to 25 W. The SSL5231BT is designed for high power factor, phase-dimmable applications. The SSL5231BT operates in Boundary Conduction Mode (BCM) with constant on-time control. It provides a constant output current control with good LED output current accuracy. Adaptive switching frequency gives freedom to choose the inductor, which enables the optimization of inductor size, efficiency and EMI.