STEVAL-ILL039V2 Series

Step-up current controller for 4 LEDs based on the STLDC08 driver

Catalog

Step-up current controller for 4 LEDs based on the STLDC08 driver

Part	Features	Current - Output / Channel	Contents	Voltage - Input [Min]	Voltage - Input [Max]	Outputs and Type	Utilized IC / Part
STMicroelectronics STEVAL-ILL039V2	Dimmable	400 mA	Board(s)	0.8 V	3.6 V	1 Non-Isolated Output	STLDC08

Catalog

Step-up current controller for 4 LEDs based on the STLDC08 driver

Description

The purpose of the STEVAL-ILL039V2 demonstration board is to provide an example for applications of an LED driver using the step-up controller STLDC08. The STLDC08 is designed for handheld equipment supplied by AA or AAA batteries and provides a precise constant current starting from a variable input voltage source. The LED current is set by an external sense resistor inserted between the feedback pin (FB) and GND. A regulation loop holds the voltage drop at the sense resistor at a constant level (typ. 100 mV).