STEVAL-ILL049V12 Datasheet, PDF (1/4 Pages) STMicroelectronics – LED temperature protection through analog dimming control

STEVAL-ILL049V12
LED driver based on the LED6001 + 9-LED board with NTC
sensor
Data brief
Features
• Wide DC input voltage: 6 V-24 V
• Single channel, 350 mA constant-current
output with PWM brightness control
• Up to 10 high-brightness white LEDs (40 V
OVP threshold)
• Selectable boost or SEPIC converter
topology
• Up to 92% efficiency (boost converter)
• Onboard photo-transistor for ambient light
switch function
• LED temperature protection through analog
dimming control
• RoHS compliant
Description
The purpose of this product evaluation board is to
provide an application example of a compact
LED driver using the new LED6001 chip from
STMicroelectronics. The board is equipped with a
single-channel, constant-current LED driver
operating with both boost and SEPIC
topologies.The brightness of the LED string
connected to its output can be controlled through
a PWM signal (0%-100% dimming) or a control
voltage (10:1 analog dimming).Open LED,
feedback disconnection, LED overcurrent and
output-to-ground short-circuit (SEPIC only) faults
are detected and managed.The board has been
designed to provide a solution example for
applications involving several LEDs arranged is a
single string (e.g. off-grid street lighting,
advertisement panels, signs, gaming, etc.).
July 2014
DocID025872 Rev 1
For further information contact your local STMicroelectronics sales
office
1/4
www.st.com