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I just received the BQ25171EVM and set up for 6S NiMH batteries, and observed the STAT2 flashing in the following scenarios:
1. No battery attached: STAT2 flashes at 9.3Hz rate. STAT1 stays high.
2. If batteries are Alkaline, STAT2 flashes at ~ 2.6Hz rate. STAT1 stays high.
Are these normal? as I did not find it in the datasheet.
Thanks,
Hi Tai
Behavior 1, no battery sounds normal:
1.) see figure 8-3, no battery condition.
2.) Unit will cycle between Charge and Charge Complete. Charge output C then, turn off and C bleeds down and restarts.
3.) STAT 1 / 2 for Charge complete HIGH / HIGH, Normal Charge High / LOW. Unit is cycling between two states
Behavior 2, sounds similar that the output voltage will increase then after charger turns off the voltage drops and charger restarts.