LTC4414EMS8#TRPBF

LTC4414 is a low loss powerpath™ controller for large PFET. It controls an external P-channel MOSFET to create a near ideal diode function for power switchover. This permits highly efficient OR’ing of multiple power sources for extended battery life and low self- heating. When conducting, the voltage drop across the MOSFET is typically 20mV. For applications with a wall adapter or other auxiliary power source, the load is automatically disconnected from the battery when the auxiliary source is connected. Two or more device may be interconnected to allow switchover between multiple batteries or charging of multiple batteries from a single charger. The gate driver includes an internal voltage clamp for MOSFET protection. It is widely used in application such as high current power path switch, industrial and automotive applications, uninterruptable power supplies, logic controlled power switch, battery backup systems, emergency systems with battery backups etc.

• AC/DC adapter voltage range is 3.5V to 36V
• Automatic switching between DC sources
• Minimal external components
• Low quiescent current is 30µA typ
• Operating supply voltage is 3V to 36V
• Limited reverse battery protection
• MOSFET gate protection clamp
• Manual control input
• Operating temperature is -40°C to 85°C
• Packaging style is 8-lead plastic MSOP

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