LTC4252-1 Overview
Description
The LTC®4252 negative voltage Hot SwapTM controller allows a board to be safely inserted and removed from a live backplane. Output current is controlled by three stages of current limiting: a timed circuit breaker, active current limiting and a fast feedforward path that limits peak current under worst-case catastrophic fault conditions.
Key Features
- Floating Topology Permits Very High Voltage Operation
- Current Limit With Circuit Breaker Timer
- Fast Response Time Limits Peak Fault Current
- Programmable Soft-Start Current Limit
- Programmable Timer with Drain Voltage Accelerated Response n ±1% Undervoltage/Overvoltage Threshold Accuracy (LTC4252A)
- Adjustable Undervoltage/Overvoltage Protection
- LTC4252-1/LTC4252A-1: Latch Off After Fault
- LTC4252-2/LTC4252A-2: Automatic Retry After Fault
- Available in 8-Pin and 10-Pin MSOP Packages
