December 2016

DocID029773 Rev 1

1/5

For further information contact your local STMicroelectronics sales

office

www.st.com

X-NUCLEO-LED16A1

16 channel LED driver expansion board based on LED1642GW

for STM32 Nucleo

Data brief

Features



16 constant current output channels



Output current: from 3 mA to 40 mA



20 V current generator rated voltage



Provision for cascading multiple expansion

boards



Current adjustment:



7-bit global current gain adjustment in

two ranges



Current programmable through external

resistor



12/16-bit PWM grayscale brightness

control



Selectable LED Bus voltage supply



USB





Error detection



Open LED



Shorted LED



Thermal shutdown



Compatible with STM32 Nucleo board



Equipped with Arduino™ UNO R3 connector



RoHS compliant

Description

The X-NUCLEO-LED16A1 is an STM32 Nucleo

expansion board designed to provide an

application for the 16 channel LED driver

LED1642GW. Multiple drivers can also be

cascaded by coupling X-NUCLEO-LED16A1

expansion boards.

Depending upon the end application, RGB or

single color LEDs can be connected to the board.

Separate brightness control is possible for each

channel.

It is compatible with the STM32 Nucleo board

family and equipped the Arduino™ UNO R3

connector layout.