The LTC4215CUFD-1#PBF is a sophisticated hot swap controller designed by Linear Technology, now part of Analog Devices, to ensure safe board insertion and removal from live backplanes. This component is particularly suitable for systems where it's essential to minimize the interruption of the power supply and maintain the integrity of data and devices during hardware maintenance or upgrades.

Key Features

• Integrated MOSFET: This device features an on-chip power MOSFET to handle the inrush current, reducing the number of external components required.
• Adjustable Current Limit: The LTC4215CUFD-1#PBF allows for precise setting of the current limit threshold to protect the system against overcurrent conditions.
• Overvoltage & Undervoltage Protection: The controller provides comprehensive protection by shutting down the output during overvoltage and undervoltage events, ensuring the safety of downstream components.
• Foldback Current Limiting: In the event of a fault, the current limit threshold is reduced to minimize power dissipation and prevent further damage.
• Multi-Function Timer: A programmable timer offers flexibility in setting the fault response time, allowing the system to recover from transient faults or to initiate shutdown procedures for persistent faults.
• Compact Package: Housed in a 20-pin (4mm × 3mm) QFN package, the LTC4215CUFD-1#PBF is designed for space-constrained applications.

Applications

The LTC4215CUFD-1#PBF is ideal for a variety of applications that require reliable power management, including:

• Network Servers and Storage Systems
• Telecommunications Equipment
• Industrial Systems
• High-Availability Systems

Product Specifications

The product comes in a lead-free, 20-pin QFN package and operates over a temperature range of -40°C to 85°C. It is designed to work with a supply voltage range typically from 2.9V to 18V, making it versatile for various applications. The LTC4215CUFD-1#PBF also features an "ON" pin that allows the user to control the MOSFET gate, providing additional flexibility in managing the power sequence.

With its robust feature set, the LTC4215CUFD-1#PBF from Linear Technology provides an efficient solution for power management and hot swap control in critical electronic systems.