The LTC4355IDE#PBF is a sophisticated diode-OR controller from Linear Technology designed to replace power Schottky diodes with N-channel MOSFETs for a more efficient, lower loss solution in power redundancy applications. This innovative device is ideal for systems that require multiple power supplies to enhance reliability through redundancy, such as servers, telecom, and datacom equipment.

Key Features

• Low Loss Replacement for Schottky Diodes: The LTC4355 controls external N-channel MOSFETs to function as ideal diodes, providing a low loss path and reducing power dissipation significantly compared to Schottky diodes.
• Wide Operating Voltage Range: The device operates over a wide 9V to 80V range, accommodating a variety of supply voltages and ensuring compatibility with a broad range of applications.
• Smooth Switchover: The LTC4355 provides seamless transitions between supplies without oscillation, ensuring a reliable and stable power supply switchover.
• Reverse Input Protection: It prevents reverse currents from flowing when the input voltage falls below the output voltage, safeguarding downstream components.
• Adjustable Turn-On Voltage: Users can set the turn-on voltage to match specific system requirements, enhancing flexibility in different applications.

Applications

• Redundant Power Supply Systems
• Industrial Power Supplies
• Telecom and Datacom Systems
• High Availability Systems
• Oring Power Inputs and Battery Systems

Product Specifications

The LTC4355IDE#PBF comes in a 12-lead DFN package with an exposed pad for enhanced thermal performance. It is specified for operation from -40°C to 85°C, suitable for industrial environments. The package is RoHS compliant and lead-free, meeting current environmental standards for electronic components.

Linear Technology's LTC4355IDE#PBF is an advanced solution for power system designers looking to improve efficiency and reliability in their redundant power systems. By utilizing this diode-OR controller, designers can achieve lower power losses, enhanced system uptime, and reduced heat dissipation, leading to overall improved system performance and longevity.