MAX5976A Datasheet | Maxim Integrated

19-5542; Rev 1; 4/11 EVAALVUAAILTAIOBNLEKIT 2.7V to 18V, 7A, Hot-Swap Solution MAX5976A/MAX5976B General Description The MAX5976A/MAX5976B are integrated solutions for hot-swap applications requiring the safe insertion and removal of circuit line cards from a live backplane. The devices integrate a hot-swap controller, 24m I power MOSFET, and electronic circuit-breaker protection in a single package. The ICs are designed for protection of 2.7V to 18V supply voltages. The devices provide inrush current control and shortcircuit detection during startup. During normal operation, the devices provide circuit-breaker protection against overload and short-circuit conditions. The circuit-breaker function disconnects the power to the load if the load current exceeds the circuit-breaker limit. The devices are factory-calibrated to deliver accurate overcurrent protection with Q10% accuracy. During a fault condition, the MAX5976A enters an autoretry mode while the MAX5976B latches off. Both versions feature a resistoradjustable variable speed circuit-breaker threshold and overtemperature protection. Additional Features include power-good and fault indicator outputs. The ICs are available in a 16-pin, 5mm x 5mm, TQFNEP package and fully specified over the -40°C to +85°C operating temperature range. RAID Systems Storage Bridge Bay Disk Drive Power Server I/O Cards Industrial Applications Features S 2.7V to 18V Operating Voltage Range S 24m I Internal Power MOSFET S 7A Load Current Capability S No Sense Resistor Required S ±10% Circuit-Breaker Threshold Accuracy S Adjustable Circuit-Breaker Current S Variable Speed Circuit-Breaker Response S Thermal Protection S Power-Good and Fault Outputs S Latch-Off or Automatic Retry Options S Drive-Present Signal Input S Active-Low and Active-High Enables Ordering Information PART PIN PACKAGE FAULT MANAGEMENT MAX5976AETE+ 16 TQFN-EP- Autoretry MAX5976BETE+ 16 TQFN-EP- Latched Off Note: All devices are specified over...