Texas Instruments bq25600, User Manual

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Test Summary
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6 SLUUBK9 – September 2017
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bq25600, bq25600D PWR771 Evaluation Module
2.3 Test Procedure
2.3.1 Current Settings
To turn on PS#1, measure → Vsys (TP8(SYS), TP17(GND)) = 3.65 (typical).
2.3.2 Charge Voltage and Current Regulation of VIN and Device ID Verification
Verify the outputs and IC for the EVM.
2.3.3 Charger Mode Verification
1. Enable Load #1 from Section 2.2 , Step 4 to 5.
2. Measure the voltage across J3 and J4 as follows:
• Measure → V(TP8(SYS), TP17(GND)) = 3.65 V (typical)
• Measure → V(TP9(BAT), TP17(GND)) = 2.5 V (typical)
• Measure → IBAT = 75 mA (typical) ( = precharge current)
3. Change the load to 3.7 V:
• Measure → V(TP8(SYS), TP17(GND)) = 3.8 V (typical)
• Measure → V(TP9(BAT), TP17(GND)) = 3.7 V (typical)
• Measure
→
IBAT = 1500 mA (typical) ( = fast charge current)
4. Adjust R10 to change the charging current.
5. Adjust R11 to change input current limit.
6. Turn off and disconnect Load #1.
7. Turn off and disconnect PS#1.
2.3.4 Boost Mode Verification
Follow these instructions for boost mode verification:
1. Do not install JP3.
2. If the constant voltage load connected from BAT+ to GND is not a 4-quadrant supply (sources current),
remove the load and use the power source disconnected in step one, set to 3.7 V and 2-A current limit,
and connect between BAT+ and GND.
3. Apply 10
Ω
(5 W or greater) across J2 PMID(+) to GND(–).
4. Verify V
PMID
to GND on J2.
Measure → V
PMID
= 5.15 V (typical).
5. Turn off and disconnect the power supply.
6. Remove the 10- Ω resistor at PMID.