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X-NUCLEO-LED61A1：DC-DC LED driver expansion board based on LED6001 for STM32 Nucleo

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.

The expansion board is designed to provide examples for applications involving several LEDs arranged is a single string (e.g., indoor and architectural LED lighting, off-grid street lighting, emergency LED lighting, white goods, gaming, etc.).

Key Features

• Single channel LED Driver, 350 mA constant current
• PWM and analog brightness control with the STM32 Nucleo board
• 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

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