The LT8672 embarks as an active rectifier controller with reverse input protection to -40V. Its 3V to 42V input voltage capability is suitable for automotive applications that need to regulate through cold-crank and stop-start scenarios with minimum input voltages as low as 3V and load dump transients up to 40V. The device drives an external N-channel MOSFET, offering a 20 mV drop, thereby reducing power dissipation by 90% compared to a Schottky diode and eliminating the need for a heat sink. Additionally, its operating current is 20 µA quiescent and 3.5 µA in shutdown.
The LT8672EMS comes in an MSOP-10. An industrial temperature version, the LT8672IMS, is tested and guaranteed to operate from a –40°C to 125°C operating junction temperature. The LT8672HMS version is tested and guaranteed to operate from a –40°C to 150°C operating junction temperature. For more information, an LT8672 datasheet is available for your viewing pleasure.
Analog Devices Inc. Linear Technology Corp.
Norwood, MA Milpitas, CA.