REF_TW_ILD8150E_60V_1A - Infineon Technologies

Overview

Tunable white two-channel LED driver realized with high-performance ILD8150E

This design is the ideal reference for professional mid power designs with high efficiency, hybrid dimming down to 0.5%, and high light quality for tunable white LED drivers. Easy implementation comes along. Based on 80V LED Driver IC ILD8150E it consists of two identical channels and one auxiliary 3.3 V supply. To achieve higher light quality it employs output electrolytic capacitors to further smooth output current. An electrolytic capacitor and an LDO are used to provide a smooth supply of 3.3 V and up to 60 mA for the dimming control circuit (e.g. a microcontroller). Two channels operate at frequencies of up to 500 kHz, the output current can be changed in the range of 250 to 1500 mA. The board also includes a connector which provides 3.3 V, dimming inputs of the channels, and one common shutdown pin, which puts the buck converters into standby mode.

A modular reference design consisting of XDPL8219 board for primary side - a digitally configurable AC/DC flyback converter - together with this board is available.

Summary of Features

Input voltage up to 80 V
Integrated MOSFET for up to 1.5 A output current
Analog dimming down to 12.5 % and PWM dimming from 12.5 % to 0.5 %
Current precision ±3 %
Soft-start, UVLO, current limitation, low-power shutdown

Benefits

Deep dimming performance without flicker and noise via an innovative one-pin hybrid method
High current precision leads to high light quality, also in color accuracy
Fast, stable and efficient regulation without audible noise
Easy implementation of tunable white designs

Potential Applications

Modular lighting boards

At Infineon we offer a broad variety of primary side ACDC and secondary side DCDC boards dedicated to LED lighting. The LED lighting boards can easily be stacked together for plug-and-play solutions.

Find out more about our modular boards