Quick Start-Up Procedure
10
SNVU558 – February 2017
Copyright © 2017, Texas Instruments Incorporated
The LP8863EVM Evaluation Module
3
Quick Start-Up Procedure
•
Connect USB cable between EVB and PC.
•
Connect external power supply to V
IN
: 12 V (typical), 5-A setting, output not enabled yet.
•
Run the LP8863 GUI software and click ”Control” icon
on left of GUI, then control window appears
as in
.
Figure 9. GUI Control Window
•
Check ”EVM connected” mark on bottom of GUI software.
•
Press ”IFSEL Pin” button to select I
2
C interface: This is not required if register control is not used.
•
Enable V
IN
power supply output: IIN is approximately a couple of mA at normal cases. If higher current
on either power rail is monitored, disable power supply output and begin debugging.
•
Click ”Enable Pin” button on GUI software: boost converter starts working, and LEDs stay off without
PWM input.
•
On PWM input control, check ”Enable” box of PWM input, select frequency and duty from drop-down
boxes, and press ”Update” button: LED turns on at adjusted brightness level by PWM input.
