Datasheet for the LTC4412HV from Linear Technology, a low-loss PowerPath controller that drives an external P-channel MOSFET as an ideal diode. The high-voltage HV version extends the input range over the standard LTC4412. The 177 KB PDF covers pin functions, application circuits and status outputs. Technicians use it when troubleshooting automatic switching between battery and wall adapter power. Check the gate drive and sense pin voltages when the load fails to switch sources.
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