1.

General description

The SSL3401HN is a Switched Mode Power Supply (SMPS) controller IC. It operates in

combination with a phase cut dimmer and a 12 V (AC or DC) low voltage electronic or

magnetic transformer. It is designed to drive LED devices and include a dimmer

conduction phase detector.

The chip includes a hysteretic controller for the power converter. It is most suitable for use

with a linear LED current source. Two embedded Proportional-Integral (PI) controllers and

a 0.052 % resolution PWM generator, adjusted by the dimmer conduction phase, ensure

excellent LED current stability for a dimming range from 100 % to less than 5 %. It also

minimizes the power loss across the LED current source.

Several protection mechanisms are available:

2.

Features and benefits

sources

SSL3401HN

Low voltage dimmable controller for LED lighting

Rev. 2 — 28 January 2014

Product data sheet