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 singlechannel, 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-toground short-circuit (SEPIC only) faults are
detected and managed through the LED driver.
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 shortcircuit (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
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.).
DocID028750 Rev 1
For further information contact your local STMicroelectronics sales
office
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www.st.com
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)
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DocID028750 Rev 1
X-NUCLEO-LED61A1
Revision history
Revision history
Table 1: Document revision history
Date
Version
Changes
11-Dec-2015
1
Initial release.
DocID028750 Rev 1
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X-NUCLEO-LED61A1
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DocID028750 Rev 1
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