Texas Instruments bq24720 EVM, User Manual, Page: 9 / 34

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Test Summary
2.4.2 Charge Parameters Setting
Increase the voltage of PS1 until V(J1(POS)) = 19 V
±
0.1 V.
Measure
→
V(J8(VBAT, GND)) = 0 V
±
1 V
In the software main window, click Read All on the top part of the window. The window is shown in
Figure 5 .
Figure 5. The Software Main Window
Type 12600 (mV) in the Battery Voltage Register on the lower right part of the window and click Write.
This sets the battery voltage regulation threshold.
Type 1000 (mA) in the Charge Current Register on the lower right part of the window and click Write. This
sets the battery charge current regulation threshold.
Type 5000 (mA) in the Input Current Register on the lower right part of the window and click Write. This
sets the input current regulation threshold.
The window should be like Figure 6 .
SLUU237 – January 2006 bq24720/21 EVM (HPA104) for Multi-Cell Synchronous 9
Switch-Mode Charger With System Power Selector and SMBus SBS-Like Interface