Test Summary
2.3
Test Procedure
2.3.1
Current Settings
1. Make sure
steps are followed.
ILIM Setting: Set the potentiometer to its lowest value for max input current by connecting an
ohmmeter between point TP9 and ground. Turn the screw on the potentiometer counterclockwise until
the resistance drops to its lowest point (this should be in the range of 125
Ω
to 175
Ω
, the value of R7)
2. Launch the GUI software, if not already done
3. Turn on PS #1
Measure
→
V (J3(SYS), J3(GND)) = 4.10 ±300 mV
2.3.2
Charge Voltage and Current Regulation of V
IN
and Device ID Verification
Follow steps 1–7 and verify the outputs and IC for the EVM:
Step 1.
Software setup (all of Step 1 is done in the GUI)
(a) Device address: bq24296M and bq24298
(b) Click the
Read
button
(c) Select
Disabled for I2C Watchdog Timer Limit
(d) Set
Input Voltage Limit
to 4.2 V
(e) Set
Input Current Limit
to 500 mA
(f) Set
Charge Voltage Limit
to 4.208 V
(g) Set
Fast Charge Current
, ICHG to 512 mA
(h) Set
Pre-Charge Current
to 256 mA
(i) Deselect
Enable Termination
(see the following images)
(j)
7
SLUUB62A – August 2014 – Revised March 2015
bq24296M and bq24298 EVM (PWR655) User’s Guide
Copyright © 2014–2015, Texas Instruments Incorporated
