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MAX5976A：2.7V to 18V, 7A, Hot-Swap Solutions

Industry's First Fully Integrated, 7A, Hot-Swap Solutions

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, 24mΩ 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 short-circuit 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 ±10% accuracy. During a fault condition, the MAX5976A enters an autoretry mode while the MAX5976B latches off. Both versions feature a resistor-adjustable 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, TQFN-EP package and fully specified over the -40°C to +85°C operating temperature range.

Key Features 2.7V to 18V Operating Voltage Range 24mΩ Internal Power MOSFET 7A Load Current Capability No Sense Resistor Required ±10% Circuit-Breaker Threshold Accuracy Adjustable Circuit-Breaker Current Variable Speed Circuit-Breaker Response Thermal Protection Power-Good and Fault Outputs Latch-Off or Automatic Retry Options Drive-Present Signal Input Active-Low and Active-High Enables

MAX5976A, MAX5976B: Typical Application Circuit Applications/Uses Disk Drive Power Industrial RAID Systems Server I/O Cards Storage Bridge Bay

DataSheet

Parametrics

Design kits & evaluation modules

• MAX5976BEVKIT

Quality and Environmental Data

• MAX5976A.pdf

Ordering Information