JAJSSD2A October 2023 – December 2023 BQ25638
PRODUCTION DATA
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The BATFET functions as a load switch between battery and system when the converter is not running. By changing the state of BATFET from on to off, systems connected to SYS can be power cycled. Any of the following conditions will initiate a system power reset:
When BATFET_CTRL_WVBUS is set to 1, system power reset will proceed if either BATFET_CTRL is set to 11 or QON is pulled low for tQON_RST, regardless of whether or not VBUS is present. There is a delay of tBATFET_DLY before initiating the system power reset. If QON is pulled low, there is no delay after the tQON_RST completes, regardless of BATFET_DLY setting.
The system power reset can be initiated from the battery only condition, from OTG mode or from the forward charging mode with adapter present. If the system power is reset when the charger is in boost OTG mode, the boost OTG mode will first be terminated by setting EN_OTG = 0.