STEVAL-TLL006V1 STMicroelectronics

STEVAL-TLL006V1 High-power LED driver demonstration board for single flash 2 with I C interface based on the STCF06 Data brief Features Buck-boost DC-DC converter Drives one power LED up to: 1.5 A between 3.5 V to 5.5 V 1.3 A between 3.0 V to 5.5 V 1 A between 2.7 V to 5.5 V Efficiency up to 85% LED current control 1.8 MHz fixed frequency PWM 2 Full I C control STEVAL-TLL006V1 Motherboard based on PSD used as USB bridge RoHS compliant Description This demonstration board implements a flash LED driver using the STCF06 device, which is a 2 buck-boost current mode converter with an I C interface. The flash LED driver STCF06 has a high operating frequency (1.8 MHz) which allows the usage of small external components. The demonstration board is designed for driving a single LED with a forward voltage range from 2.7 to 5 V. For easy connection to a PC, the STEVAL- TLL006V1 uses a PSD-based motherboard used as a bridge. The STCF06 motherboard uses an 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. May 2009 Doc ID 15720 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 Obsolete Product(s) - Obsolete Product(s) Circuit schematic STEVAL-TLL006V1 1 Circuit schematic Figure 1. Typical application schematic 2/4 Doc ID 15720 Rev 1 Obsolete Product(s) - Obsolete Product(s)