SLUSF18A October 2023 – December 2023 BQ25638
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
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).