MAXIM MAX15095DGFC+

The MAX15095 family of devices is an integrated solution for hot-swap applications requiring the safe insertion and removal of circuit line cards from a live backplane. They can also be used as electronics circuit breakers for hard drives, solid-state drives, and fans. The devices integrate a hot-swap controller (10.6mΩ typ) power MOSFET, and an electronic circuit-breaker protection in a single package. The devices are designed for protection of 2.7V to 18V supply voltages. These devices implement a foldback current limit during startup to control inrush current, lowering di/dt and keeping the MOSFET operating under safe operating area (SOA) conditions. After the startup cycle is complete, on-chip comparators provide VariableSpeed/BiLevel™ protection against short-circuit and overcurrent faults, and immunity against system noise and load transients. The load is disconnected in the event of a fault condition. The devices are factory calibrated to deliver accurate overcurrent protection with ±10% accuracy. During a fault condition, PG goes low and the devices can latch off (MAX15095) or automatic retry (MAX15095A); the output can also be discharged after a fault event (MAX15095D). The devices feature an IN-to-OUT short-circuit detection before startup. The devices provide a power-MOSFET GATE pin to program the slew rate during startup by adding an external capacitor. The devices have an undervoltage/overvoltage input pin (UVOV) that can detect an undervoltage/overvoltage fault and disconnect the IN from the OUT. Additional features include internal overtemperature protection and a power-good output (PG). The devices are available in a 12-pin, 2.5mmx2.5mm FC2QFN package and are rated over a -40°C to +105°C extended temperature range.

• Integration Reduces Solution Size for Blade Servers and Other Space-Constrained Designs
• Integrated 10.6mΩ (typ) Internal Power MOSFET
• Programmable Overvoltage Protection and Undervoltage-Lockout Threshold
• Drive-Present Signal Input (PRSNT pin)
• Thermal Protection
• Flexibility Enables Use in Many Unique Designs
• 2.7V to 18V Operating Voltage Range
• Programmable Inrush-Current Control under SOA Operation
• Adjustable Circuit-Breaker Current/Current-Limit Threshold
• Programmable Slew-Rate Control
• Variable-Speed Circuit-Breaker Response
• Latchoff (MAX15095) or Automatic Retry (MAX15095A) Options
• Safety Features Ensure Accurate, Robust Protection
• 6.6A (max) Load-Current Capability
• ±10% Circuit-Breaker Threshold Accuracy
• IN-to-OUT Short-Circuit Detection
• Open-Drain PG Output
• Output Discharge after a Fault Event (MAX15095D Only)
• Programmable Additional Delay (2µs max) to Fast-Comparator Response Time
• Enable Input (EN)

• Blade Servers
• Server I/O Cards
• RAID Systems
• Disk Drive Power
• Storage Applications
• Industrial Applications