Dual Hot Swap Controller

Linear Technology Corporation (Milpitas, CA) has introduced the LTC4224, a compact, low voltage Hot Swap™ controller for protecting boards and backplanes that uses two 1V to 6V voltage supplies. The LTC4224 enables safe insertion and removal of a module into a rail by limiting any in-rush currents large enough to create a glitch on the rail, which can cause other plug-in modules to malfunction. Peak fault currents are controlled in less than 1μs and an optional gate capacitor can be used to adjust the gate slew rate. The LTC4224 is suitable for optical networking, low voltage Hot Swap control, and electronic circuit breaker applications.