LTC4412IS6#TRPBF

Product Summary

The LTC4412IS6#TRPBF is a Low Loss Power Path Controller. The LTC4412IS6#TRPBF controls an external P-channel MOSFET to create a near ideal diode function for power switchover or load sharing. This permits highly efficient OR’ing of multiple power sources for extended battery life and low selfheating. 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 LTC4412IS6#TRPBFs may be interconnected to allow load sharing between multiple batteries or charging of multiple batteries from a single charger. The wide supply operating range supports operation from one to six Li-Ion cells in series. The low quiescent current (11mA typical) is independent of the load current. The gate driver includes an internal voltage clamp for MOSFET protection. The applications of the LTC4412IS6#TRPBF include Cellular Phones, Notebook and Handheld Computers, Digital Cameras, USB-Powered Peripherals, Uninterruptable Power Supplies and Logic Controlled Power Switch.

Parametrics

LTC4412IS6#TRPBF absolute maximum ratings : (1)Supply Voltage (VIN): –14V to 36V; (2)Voltage from VIN to SENSE: – 28V to 28V; (3)Input Voltage CTL: –0.3V to 36V; (4)SENSE: –14V to 36V; (5)Output Voltage GATE: –0.3V to the Higher of VIN + 0.3V or SENSE + 0.3V; (6)STAT: –0.3V to 36V; (7)Operating Ambient Temperature Range: –40℃ to 85℃; (8)Operating Junction Temperature: – 40℃ to 125℃; (9)Storage Temperature Range: –65℃ to 150℃; (10)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LTC4412IS6#TRPBF features: (1)Very Low Loss Replacement for Power Supply OR’ing Diodes; (2)Minimal External Components; (3)Automatic Switching Between DC Sources; (4)Simplifies Load Sharing with Multiple Batteries; (5)Low Quiescent Current: 11mA; (6)3V to 28V AC/DC Adapter Voltage Range; (7)2.5V to 28V Battery Voltage Range; (8)Reverse Battery Protection; (9)Drives Almost Any Size MOSFET for Wide Range of Current Requirements; (10)MOSFET Gate Protection Clamp; (11)Manual Control Input; (12)Low Profile (1mm) ThinSOTTM Package.

Diagrams