STEVAL-TLL006V2 STMicroelectronics

STEVAL-TLL006V2 New high-power LED driver demo board for single flash with IC interface based on STCF06 (with motherboard based on PSD) 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 Motherboard based on PSD used as USB Connect the motherboard to the PC through the bridge USB cable (AB type). Wait until the computer RoHS compliant enumerates the control board and displays the message that new hardware has been found and is ready to use. It is then possible to run the data Description packet creator application by pressing the The STEVAL-TLL006V2 demonstration board Connect board button. implements a flash LED driver using the STCF06 device, which is a buck-boost current mode 2 converter with an I C interface. As technology for external components has greatly improved, in this new version V2 it was possible to shrink the original application and maintain the same level of performance or similar. The flash LED driver STCF06 has a high operational frequency (1.8 MHz) which allows the use of small external components. The STEVAL-TLL006V2 is designed for driving a single LED with a forward voltage range from 2.7 to 5 V. For easy connection to the PC, a motherboard is supplied based on PSD which is used as a bridge. The STCF06 motherboard uses a USB human interface device class to communicate with the PC. It is not necessary to install any driver, if the operating system is able to enumerate USB human interface devices. March 2012 Doc ID 022711 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 Obsolete Product(s) - Obsolete Product(s)9% Schematic STEVAL-TLL006V2 1 Schematic Figure 1. Circuit schematic 7 % 1 7 7 % % % 7 8 7 % ) ) / 9 ) & 5 < % 5% 1 / & *, & / UHG D 1 1 67 . 6 Y 0 2/4 Doc ID 022711 Rev 1 Obsolete Product(s) - Obsolete Product(s) * 1 3* 3* 39 7( 39 70 /( 6 6 5 8 / +H 6& 5 17 75 17 5) 7 )% -3 57 9/ )% 9/ 67 ,2 9/ /( / X 6 9287 9/ &2 9287 9/ X) &, 39