Automatic changeover Switch circuit using IC LTC4412

Automatic changeover circuit

Automatic Changeover Switch using IC LTC4412 from Linear Technologies. This Automatic changeover circuit using IC LTC4412 can be used for the automatic switchover of a load between a battery and a wall adapter.LTC4412 controls an external P-channel MOSFET to create a near ideal diode function for power switch over and load sharing.


Automatic changeover Switch circuit

Automatic changeover Switch circuit

This makes the LT4412 an ideal replacement for power supply ORing diodes. A wide range of MOSFETs can be driven using the IC and this gives much flexibility in terms of load current. The Automatic changeover Switch circuit also has a bunch of good features like reverse battery protection, a manual control input, MOSFET gate protection clamp etc.


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