The LTC4210-1IS6 is a 6-pin SOT-23 Hot Swap™ controller that allows a board to be safely inserted and removed from a live backplane. An internal high side switch driver controls the GATE of an external N-channel MOSFET for a supply voltage ranging from 2.7V to 16.5V. The LTC4210-1IS6 provides the initial timing cycle and allows the GATE to be ramped up at an adjustable rate.
The LTC4210-1IS6 features a fast current limit loop providing active current limiting together with a circuit breaker timer. The signal at the ON pin turns the part on and off and is also used for the reset function.
This part is available in two options: the LTC4210-1 for automatic retry on overcurrent fault and the LTC4210-2 for latch off on an overcurrent fault.
Vin RangeRetry / LatchoffLTC4210-12.7V to 16.5VRetry After FaultLTC4210-22.7V to 16.5VLatch Off After FaultLTC4210-32.7V to 7VRetry After FaultLTC4210-42.7V to 7VLatch Off After Fault
Feature
- Allows Safe Board Insertion and Removal from a Live Backplane
- Adjustable Analog Current Limit with Circuit Breaker
- Fast Response Limits Peak Fault Current
- Automatic Retry or Latch Off On Current Fault
- Adjustable Supply Voltage Power-Up Rate
- High Side Drive for External MOSFET Switch
- Controls Supply Voltages from 2.7V to 16.5V
- Undervoltage Lockout
- Adjustable Overvoltage Protection
- Low Profile (1mm) SOT-23 (ThinSOT™) Package
Applications
- Hot Board Insertion
- Electronic Circuit Breaker
- Industrial High Side Switch/Circuit Breaker
(Picture: Pinout)
