Texas Instruments bq25970, Руководство пользователя

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Test Summary
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8 SLUUBR4A – February 2018 – Revised December 2018
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bq25970 PWR893 Evaluation Module
2.5 Charger Mode Verification
Use the following steps for charger mode verification:
1. Select Charge Enable
2. Input and output voltage/current:
After enabling charge, the output current should be two times of the input current.
3. Change charge current:
By increasing the input voltage, the input current should increase together with the output current. The
output current should always be two times of the input current.
4. Unselect Charge Enable ( → disable charge)
5. Measure the current at J3 and J5, both should go to zero amps.
6. Turn off and disconnect load
7. Turn off and disconnect PS
3 Board Layout, Schematic, and Bill of Materials
3.1 Board Layout
Figure 5 through Figure 10 illustrate the board layouts for this EVM.
Figure 5. BQ25970EVM-893 top layer