RT9719 Charging System Safety Device General Description The RT9719 is an integrated circuit (IC) designed to replace passive device in charging system with extra protection function.
It is optimized to protect low voltage system from up to 28V high voltage input.
The IC monitors the input voltage to make sure all parameters are operating in normal range.
It also monitors its own temperature and turn off the MOSFET when the chip temperature exceeds 140°C.
When the input voltage exceeds the threshold, the IC turns off the power MOSFET within 1us to remove the power before any damage occurs.
User can monitor the adapter input voltage from CHRIN pin which has 50mA current capability.
The gate...

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