JAJSSH0 December 2023 BQ77307
PRODUCTION DATA
The BQ77307 integrates an extensive primary protection subsystem which can monitor a variety of parameters, initiate protective actions, and autonomously recover based on conditions. The device also includes a wide range of flexibility, such that the device can be configured to monitor and initiate protective action, but with recovery controlled by the host processor, or such that the device only monitors and alerts the host processor whenever conditions warrant protective action, but with action and recovery fully controlled by the host processor.
The protection subsystem includes a suite of individual protections which can be individually enabled and configured, including cell undervoltage and overvoltage, overcurrent in charge, two separate overcurrent in discharge protections, short circuit current in discharge, cell overtemperature and undertemperature in charge and discharge, internal die overtemperature, and a host processor communication watchdog timeout (for systems that expect a host processor to remain active). The device integrates NFET drivers for low-side CHG and DSG protection FETs, which can be configured in a series or parallel configuration, and provides body diode protection when in series configuration.