SSL5015TE Reference Design Circuit | LED Driver Application Circuit

The SSL5015TELED driver IC is a high voltage IC controller with integrated MOSFETs designed to drive general purpose power supply non-dimmable lighting applications. This article mainly introduces the SSL5015TE features, application range, reference design circuit and circuit analysis to help you shorten the design time.

SSL5015TE features: LED light string driven by rectified grid power; highly integrated switch mode LED driver integrated with 300V (DC) power switch; direct PWM current regulation can be low.

Typical application range of SSL5015TE: modified LED bulb; LED lighting driver module

SSL5015TE reference design application circuit:

Figure 1 SSL5015TE internal structure block diagram

The SSL5015TE is intended for low-cost mains non-dimmable LED lighting applications, including 18 W T-LEDs or higher power lamps, with a high power factor. The IC operates from 100 V (AC) or 120 V (AC) mains voltages The output current can be modulated using a PWM signal.

Figure 2SSL5015TE reference design

Energy converter stored in inductor L when the MOSFET is switched on. The inductor current IL is zero when the internal MOSFET is switched on at t0. after, the amplitude of the current builds up In the MOSFET switches off at t1, the current flows Through the freewheeling diode and the output capacitor (t2 to t3). The current then drops at a rate proportional to the value of VOUT. When the inductor current reaches zero, after a short delay (t3 to t00), a new switching cycle is Started when the MOSFET is switched on again.

SSL5015TE Chinese data sheet: Click to download

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