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Part Number: BQ24298
With battery unplugged, and TS voltage input adjusted to be within range (2.5 V), STAT pin presents 1 Hz signal and REG 9 bit 0 (NTC_FAULT) depicts value 1. REGN pin voltage is 5 V, input voltage is 5 V and VSYS is 3.7 V. CE pin is set high. Is there a way to reset REG 9 bit 0, stopping led blinking?
TS fault can't be reset. The TS pin voltage needs to be within the "normal" voltage range in order to remove the fault.
Please click "Verified answer" if this helps.
In reply to Ning T:
I connected a potentiometer accross low-side resistor of the voltage divider and GND, and swept voltage from 3.5V to 0V, but TS fault wasn't removed, even 3,5V was detected as "hot". Please notice that battery is absent,, and charging is disabled.
In reply to Newton Cardoso:
REGN pin has 4.88V and TS pin voltage range goes from 0V to 3.33V on varying the potentiometer connected accross low-side resistor of resistive divider.
So VTS/VREGN ratio lowest value is zero and maximum value ís 0,68. For any VTS/VREGN ratio value STAT led continues blinking and NTC_FAULT bit is 1.
Could you please share your schematic and all register values for your test conditions? Thanks!
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