LTC4214-2IMS#PBF

LTC4214-2 is a negative voltage Hot Swap™ controller. It 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 feed forward path that limits peak current under worst-case catastrophic fault conditions. Adjustable undervoltage and overvoltage detectors disconnect the load whenever the input supply exceeds the desired operating range. This device controls negative supplies ranging from near zero to -16V. A multifunction timer delays initial start-up and controls the circuit breaker’s response time. This response time is accelerated by sensing excessive MOSFET drain voltage, keeping the MOSFET within its safe operating area (SOA). It is used in applications such as hot board insertion, electronic circuit breaker, negative power supply control, central office switching, high availability servers, disk arrays, optical networking/switching, ECL.

• Fast response time limits peak fault current
• Adjustable timer with drain voltage accelerated response
• Adjustable undervoltage/overvoltage protection
• Automatic retry after fault
• Supply voltage range from 6V to 16V
• VIN supply current is 0.8mA typ at (UV = OV = 2.5V, TA = 25°C)
• VIN undervoltage lockout is 5.1V typ at (TA = 25°C, VIN = 12V)
• Operating temperature range from -40°C to 85°C
• Package style is 10-lead plastic MSOP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party