Data brief
For further information contact your local STMicroelectronics sales office.
January 2010 Doc ID 15721 Rev 2 1/4
4
STEVAL-TLL007V1
High-power LED driver demonstration board for dual flash
with I
2
C interface based on the STCF05
Features
■ Boost DC-DC converter with synchronous
rectification
■ Drives two power white LEDs in series with a
current up to 400 mA
■ Efficiency up to 85%
■ 3 passive components only
■ 24 mm
2
PCB area only
■ 1.8 MHz fixed frequency PWM
■ Full I
2
C control
■ Motherboard based on µPSD used like USB
bridge
■ RoHS compliant
Description
This demonstration board is dedicated to the
STCF05 flash LED driver IC, which is a boost
current mode converter with an I
2
C interface and
internal current source. The STCF05 is designed
to drive two LEDs in series with a total forward
voltage from 5.3 V to 10.2 V.
For easy connection to a PC, the STEVAL-
TLL007V1 uses a µPSD-based motherboard
used as a bridge.
The STCF05 motherboard uses a USB human
interface device to communicate with the PC. It is
not necessary to install a driver, if the operating
system in use is capable of enumerating USB
human interface devices.
STEVAL-TLL007V1
www.st.com
