JAJSSD2A October 2023 – December 2023 BQ25638
PRODUCTION DATA
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For battery protection during boost OTG, the device monitors the battery temperature to be within the TS_TH_OTG_COLD to TS_TH_OTG_HOT thresholds. For a 103AT-2 NTC thermistor with RT1 of 5.3 kΩ and RT2 of 31.1 kΩ, TS_TH_OTG_COLD default is -10°C and TS_TH_OTG_HOT default is 60°C. When temperature is outside of this range, the OTG mode is suspended with REGN remaining on. In addition, VBUS_STAT bits are set to 000, TS_STAT is set to 001 (TS_OTG_COLD) or 010 (TS_OTG_HOT), and TS_FLAG is set. In boost OTG, the converter stops switching. Once the battery temperature returns to normal temperature, the boost OTG is restarted and TS_STAT returns to 000 (TS_NORMAL).