LT8672HMS#PBF

LT8672 is a active rectifier controller for reverse input protection. It drives an external N-channel MOSFET to replace a power schottky diode. It's very low quiescent current and fast transient response meet the tough requirements in automotive applications where AC input signals of upto 100KHz are present. These signals are rectified with minimum power dissipation on the external FET, simplifying thermal management on the PCB. With a drop of only 20mV, this device solution eases the minimum input voltage requirement during cold crank and start-stop, allowing simpler and more efficient circuits. If the input power source fails or is shorted, a fast turn-off minimizes reverse current transients. An integrated auxiliary boost regulator provides the required boost voltage to turn the external FET fully on. It is widely used in application such as automotive battery protection, industrial supplies, portable instrumentation etc.

• Reverse input protection to -40V
• Reduce power dissipation by <gt/>90%
• Wide operating voltage range is 3V to 42V
• Accurate 1.21V enable pin threshold
• Quiescent current is 3.5µA typical at (VEN/UVLO = 0V, TA = 25°C)
• Drain current is 12µA typical at (TA = 25°C)
• Operating temperature is -40°C to 150°C
• Package style is 10-lead plastic MSOP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party