X-NUCLEO-LED61A1 STMicroelectronics

X-NUCLEO-LED61A1 DC-DC LED driver expansion board based on LED6001 for STM32 Nucleo Data brief Description The X-NUCLEO-LED61A1 is an expansion board designed to provide a sample application for the compact LED driver based on LED6001. The expansion board is equipped with a single- channel, constant-current LED driver for boost or SEPIC topologies.The X-NUCLEO interfaces with the STM32 microcontroller. It is compatible with the Arduino UNO R3 connector. The brightness of the LED string connected to its output can be controlled through a PWM signal (0 % - 100 % dimming) or a control voltage (analog dimming). Open/Short LED fault, feedback disconnection, LED overcurrent and output-to- ground short-circuit (SEPIC only) faults are detected and managed through the LED driver. Features The expansion board is designed to provide examples for applications involving several LEDs Single channel LED Driver, 350 mA constant arranged is a single string (e.g., indoor and current architectural LED lighting, off-grid street lighting, PWM and analog brightness control with the emergency LED lighting, white goods, gaming, STM32 Nucleo board etc.). Selectable boost or SEPIC converter topology Up to 92% efficiency (boost converter) Open LED, feedback disconnection, LED overcurrent and output-to-ground short- circuit (SEPIC only) fault detection and management Onboard photo-transistor for ambient light switch function (analog dimming) Wide DC input voltage range: 8 V 24 V Compatible with Arduino UNO R3 connectors Compatible with STM32 Nucleo boards RoHS compliant December 2015 DocID028750 Rev 1 1/4 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram X-NUCLEO-LED61A1 Schematic diagram Figure 1: X-NUCLEO-LED61A1 board schematic (1 of 3) Figure 2: X-NUCLEO-LED61A1 board schematic (2 of 3) Figure 3: X-NUCLEO-LED61A1 board schematic (3 of 3) 2/4 DocID028750 Rev 1