Diodes AL3644EV1, User Manual, Page: 9 / 10

AL3644EV1 User Guide
AL3644EV1 Page 9 of 10
Aug 2019
www.diodes.com
3. I/O Pin Controls
The AL3644EVM provides the user with the capability to control the TORCH, STROBE and TX
inputs without the need of an external supply.
The Ext. Strobe Button toggles the Strobe pin high for the duration entered in the field next to
the button.
The Torch Enable button toggles the AL3644's TORCH/TEMP pin high when pressed and low
depressed.
The IR Strobe Button along with the hz and Duty fields generate a continuous pulse train that
can be used to generate a current pulse pattern on the enabled LEDs.
The TX Enable Button along with the hz and Duty fields generate a continuous pulse train when
pressed.
Figure 12. I/O Pin Controls