Texas Instruments bq2425xEVM-150, Руководство пользователя

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Test Procedure
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Figure 5. Main Window of the bq2425xSW Evaluation Software
10. Turn on the computer. Open the bq2425x evaluation software. The main window of the software is
shown in Figure 5 .
5.5 Recommended Test Procedure
5.5.1 Charge Voltage and Charge Regulation in Default Mode
1. Ensure that the recommended test setup is followed.
2. Connect the output of PS #1 in series with current meter (A #1) to J2 and J4 (IN, GND).
3. Connect VM #1 across J4 and J2 (IN, GND).
4. Ensure the CE is low by shorting JP3 to GND.
5. Turn on PS #1 and PS #2.
6. Enable PS #2 or equivalent battery and adjust PS #2 so that the voltage measured by VM #3, across
BAT and GND, measures 3.6 V ±50 mV.
7. Adjust the power supply so VM #1 still reads 6 V ± 100 mV and VM#3 reads 3.2 V.
• Measure on A #2
→
I
CHRG
= 1000 mA ±150 mA
• Measure on A #1 → IIN = 600 mA ±100 mA
5.5.2 Input and Charge Current Regulation in Host Mode
1. Ensure that the recommended test setup is followed.
2. Follow Section 6 for initial setup
3. Open the bq2425x software:
• Press the READ button to obtain the current settings.
• Change the Input Current Limit to 100 mA
10 bq2425xEVM-150, Single-Cell Li-Ion Switch-Mode Charger SLUUA08A – March 2013 – Revised April 2013
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