MAX5976A

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

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


Please check latest availability status for a specific part variant.

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, 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.
MAX5976A, MAX5976B: Typical Application Circuit MAX5976A, MAX5976B: Typical Application Circuit Enlarge+

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

Applications/Uses

  • Disk Drive Power
  • Industrial
  • RAID Systems
  • Server I/O Cards
  • Storage Bridge Bay
Part NumberVIN
(V)
VIN
(V)
Circuit Breaker/ Current LimitCircuit Breaker/Current Limit Threshold
(mV)
Fault Condition ControlChannelsPositive/Negative RailFeaturesPackage/PinsBudgetary
Price
minmaxSee Notes
MAX5976A 2.718Circuit BreakerAdjustablePeriodic Retry1Positive
Integrated MOSFET
Requires No RSENSE
TQFN/16
$2.23 @1k
MAX5976B Latched Off
TQFN/16
See All Hot Swap Controllers (53)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX5976BEVKIT: Evaluation Kit for the MAX5976A and MAX5976B
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
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Related Resources


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