STEVAL-ILL065V1

3 A LED driver based on the LED5000 in BB+ topology

Data brief

Features

•

5.5 V to 48 V operating input voltage range

•

850 kHz fixed switching frequency

•

200 mV typ. current sense voltage drop

•

BB+ boost topology

•

PWM dimming

•

±3% output current accuracy over

temperature

•

•

Peak current mode architecture

•

Short-circuit protection

•

Compliant with ceramic output capacitors

•

Inhibit for zero current consumption

•

Thermal shutdown

•

RoHS compliant

Description

The STEVAL-ILL065V1 is a product evaluation

board based on the LED5000, an 850 kHz fixed

switching frequency monolithic step-down DC-DC

converter designed to operate as a precise

constant current source with an adjustable

current capability up to 3 A DC.

The embedded PWM dimming circuitry features

LED brightness control. The regulated output

current level is set by connecting a sensing

resistor to the feedback pin. The 200 mV typical

terms of efficiency.

The size of the overall application is minimized

thanks to the high switching frequency and its

compatibility with ceramic output capacitors. The

device is fully protected against overheating,

overcurrent and output short-circuit.

August 2014

DocID026229 Rev 1

1/4

For further information contact your local STMicroelectronics sales

office

www.st.com