Using the Evaluation Hardware
6
Using the Evaluation Hardware
Connectors are provided to allow a battery connection and output voltage measurement. Jumpers allow
user-selectable or USB-controlled settings for device functions.
6.1
Power Supply
The evaluation board may be powered from a battery connector or from the USB interface.
Set jumper between J2 pin2 and TP36 to use 5V supply from USB. Maximum current for USB supply is
500 mA. Alternatively moving the jumper to pins 1 and 2 will provide a 3.3V supply to the device.
Table 1. Battery Connector J2
Pin
Function
1
VCC3V3
2
Battery (+) terminal
3
GNC
TP36
VCC5V
6.2
Control
A green and a yellow LED will be illuminated once the LM10502 has started up. Place a jumper on JP1 to
connect VIN_IO to LDO_OUT. Otherwise, to power VIN_IO from the on-board 3.3V supply, place a jumper
on JP11; JP1 should be open in this case.
6.3
Logic Connectors
The logic signals can be controlled either by the evaluation software or externally through connector
labeled. Set the jumper block shown accordingly.
Figure 5. Logic Signal Jumper Detail
5
SNVU277 – January 2014
Copyright © 2014, Texas Instruments Incorporated
