LTC4352HDD#TRPBF - Dual Low Voltage Ideal Diode Controller

The LTC4352HDD#TRPBF is a cutting-edge dual low voltage ideal diode controller designed by Linear Technology, which is now part of Analog Devices. This innovative component is engineered to replace power Schottky diodes with a MOSFET, which provides a much lower forward voltage drop. The result is a significant reduction in power dissipation and heat generation, enhancing the overall efficiency of power supply systems.

Encased in a compact 10-lead DFN package, the LTC4352HDD#TRPBF is perfect for space-constrained applications. It is specifically tailored for systems that require a seamless transition between redundant power supplies or for load sharing purposes. This controller is suitable for a wide range of products, including servers, telecom equipment, and industrial systems, where reliability and continuous operation are paramount.

One of the key features of the LTC4352HDD#TRPBF is its ability to control external N-channel MOSFETs, which act as a low-loss diode. The controller operates over a voltage range of 2.9V to 18V, making it versatile for various low voltage applications. Additionally, it includes a 1.5% accurate undervoltage lockout (UVLO) feature, ensuring that the MOSFETs are only turned on when the input voltage is within an acceptable range.

The product also boasts a fast turn-off less than 1µs, which is critical in preventing reverse current during system faults or hot-swapping events. Furthermore, the LTC4352HDD#TRPBF is designed with an adjustable turn-on speed to mitigate inrush current, contributing to the stability and protection of the system.

For enhanced system reliability, the LTC4352HDD#TRPBF includes cross-conduction prevention logic, guaranteeing that only one MOSFET is conducting at any given time. This feature is crucial in preventing potential damage to the MOSFETs and the power source. Moreover, the controller is equipped with a status flag output that can be used for fault indication or to enable downstream converters when power is good.

In summary, the LTC4352HDD#TRPBF from Linear Technology is a robust and efficient solution for managing power in critical systems. Its advanced features and compact size make it an excellent choice for designers looking to enhance system reliability and efficiency.