Product Overview: LTC4353CGN from Linear Technology

The LTC4353CGN is a high-performance, dual low voltage Ideal Diode-OR controller that provides a seamless transition between power sources in a compact SSOP-16 package. Designed by Linear Technology, now part of Analog Devices, this controller is specifically engineered to replace power Schottky diodes with N-channel MOSFETs, creating a low loss power path and significantly reducing the heat dissipation and voltage drop typically associated with conventional diodes.

With its wide operating voltage range of 9V to 80V, the LTC4353CGN is versatile enough to be used in a variety of applications, including redundant power supplies, servers, and telecom systems where reliability and efficiency are paramount. The device is capable of controlling two separate power paths, ensuring that the highest priority power source is always used and seamlessly switching to the backup source in the event of a failure or undervoltage condition.

Key Features

• Low Loss Replacement for Power Diodes: By utilizing N-channel MOSFETs, the LTC4353CGN minimizes power loss and heat generation, improving overall system efficiency and reliability.
• Wide Operating Voltage Range: With support for 9V to 80V, this controller can be used in a broad spectrum of power systems without compromising performance.
• Dual Ideal Diode-OR Controller: The dual controller design ensures uninterrupted power supply by automatically selecting the best available source.
• Fast Switching Capability: The LTC4353CGN provides quick and smooth transitions between power sources, reducing the risk of system downtime.
• Adjustable Under-Voltage Lockout: Users can set a precise undervoltage lockout threshold to protect sensitive equipment from low voltage conditions.
• Charge Pump to Drive N-Channel MOSFETs: The integrated charge pump allows for the efficient driving of the gate of N-channel MOSFETs, eliminating the need for external components.
• SSOP-16 Package: Its compact package saves valuable board space and is suitable for high-density circuit designs.

Applications

The LTC4353CGN is ideal for systems that require a reliable and efficient power distribution network. It is commonly used in redundant power supply systems, high-availability servers, network equipment, and any application where a seamless transition between power sources is critical to maintaining operation.

In summary, the LTC4353CGN from Linear Technology offers a sophisticated solution for power path management, combining efficiency, versatility, and reliability in a single device. It is an excellent choice for designers looking to enhance their power systems with state-of-the-art Ideal Diode-OR functionality.