Customer Configuration - Renesas DA9318 User Manual

UM-PM-022
DA9318 Direct Charging Reference Board
7.3.2.1

Customer Configuration

In the Options menu, click on Settings, the Settings window is displayed.
1. Select the VBat Main to Direct Charger handover thresholds (volts) voltage. This is the
battery voltage threshold to automatically enable the direct charger. The default value is 3.3 V.
2. Select the IBat Direct to Main Charger handover threshold (amps) current. This is the battery
current threshold to automatically switch from direct charging to main charging. The default value
is 0.9 A.
3. Select the Battery step down current step (mA) current. This is the battery current step during
the ramp down of the travel adaptor current limit. The default value is 100 mA.
4. Select the Direct Charger VBat Warning Threshold (volts) voltage. This is the battery voltage
threshold for the assertion of the E_VBAT_WARN event, hence the start of the of the travel
adaptor current limit reduction. The default value is 4.351339286 V that is 99 % of the Main CV
targeted end-of-charge voltage (Main CV = 4.400 V by default).
In the case of a 4.2 V battery being used, Direct Charger VBat Warning Threshold (volts)
must be set to ~99 % x 4.2 V (use the nearer value available in the drop down combo box) and
Main CV must be set to 4.200 V.
NOTE
If any of the parameters are changed from their default settings, then click on the Save at start-up button and
restart the GUI.
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User Manual
CFR0012
Figure 32: Settings – Auto Charging
Revision 3.2
31 of 39
16-Feb-2022
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