Product Overview: LTC4261CUFD-2#PBF

The LTC4261CUFD-2#PBF is a sophisticated negative voltage hot swap controller from Linear Technology, designed to enable safe board insertion and extraction for systems operating on a -48V supply. This device is particularly suitable for telecom and datacom applications where negative supply voltages are standard and system reliability is critical.

Key Features

• Hot Swap Control: The LTC4261CUFD-2#PBF allows a board to be safely removed and inserted into a live backplane, reducing downtime and maintenance complexity.
• Integrated MOSFET: An onboard N-channel MOSFET controls the power to the load, providing efficient current handling with a programmable current limit.
• Overcurrent Protection: The device includes robust overcurrent protection with an adjustable threshold, ensuring safe operation under abnormal load conditions.
• High Voltage Capability: With a wide operating range, this controller can handle systems with supply voltages up to -80V, making it versatile for various negative voltage applications.
• Electronic Circuit Breaker: The LTC4261CUFD-2#PBF features an electronic circuit breaker function that provides fast response to fault conditions, protecting both the load and the power source.
• Multi-Function Timer: A multi-function timer offers programmable overcurrent auto-retry and power-up delay, allowing for tailored behavior to match specific system requirements.
• Reporting and Status Indication: The device includes a fault output indicator and can provide a power good signal, which simplifies system monitoring and diagnostics.

Applications

The LTC4261CUFD-2#PBF is well-suited for various applications where negative voltage power management is critical. This includes:

• Telecommunications equipment
• Datacom infrastructure
• Network servers and storage systems
• Industrial applications

Package and Quality

The LTC4261CUFD-2#PBF comes in a compact QFN-20 package, ensuring a minimal footprint on the PCB while providing excellent thermal performance. Linear Technology's commitment to high-quality components means this hot swap controller meets stringent reliability standards for commercial and industrial use.