Linear Technology LTC4260ISW#PBF Hot Swap Controller

The LTC4260ISW#PBF is a sophisticated hot swap controller designed by Linear Technology, now part of Analog Devices, to enable safe board insertion and removal from a live backplane. This product is ideal for high-availability systems where downtime is not an option and components must be serviced or upgraded without powering down the entire system.

Featuring an integrated 8.7V gate drive for an external N-channel MOSFET, the LTC4260ISW#PBF provides control for the power delivery to the load, ensuring a soft-start capability that limits inrush current during plug-in events. This feature helps prevent glitches on the supply rail, which can cause resets or malfunctions in other system components.

The controller operates over a wide supply range of 2.7V to 16.5V, making it versatile for various applications. It also includes overcurrent and overvoltage protection, under-voltage lockout, and foldback current limiting to safeguard the system against a variety of fault conditions. Additionally, the LTC4260ISW#PBF offers a current monitor output that provides a proportional analog voltage based on the load current, which can be used for remote monitoring purposes.

For enhanced flexibility, the LTC4260ISW#PBF features a programmable timer that can be set to limit the duration of overcurrent conditions before the MOSFET is turned off, thereby preventing damage to the board and the hot swap controller itself. The device also includes a power good output, which can signal to the system when the output voltage is within a specified range and stable.

Encased in a 16-lead wide body SOIC package, the LTC4260ISW#PBF is designed for rugged environments and is specified over the commercial and industrial temperature ranges. With its robust feature set and protection mechanisms, this hot swap controller is an ideal choice for network servers, telecom equipment, and other systems that require reliable, uninterrupted operation.

Linear Technology's commitment to high-quality and performance is evident in the LTC4260ISW#PBF, making it a trusted solution for managing hot-swap events in critical applications.