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MAX5977A - 1V to 16V / Single-Channel Hot-Swap Controllers

General Description

The MAX5977A/MAX5977B hot-swap controllers provide complete protection for systems with a 1V to 16V singlesupply voltage.

During the initial insertion, the hot-swap controllers limit the inrush current from damaging the board or from shorting out the backplane.

Key Features

  • S 1% Accurate Current-Sense Amplifier Output S Hot-Swap Monitors Operation from 1V to 16V S Integrated Charge Pump Fully Enhances the External n-Channel FET (VGATE = VIN + 5V) S VariableSpeed/BiLevelK Fault Protection Provides Electronic Circuit-Breaker Function S Output Latched Off After Fault Condition (MAX5977A) S Autoretry After Fault Condition (MAX5977B) S Power-Good Indicator S Calibration Mode S Small, 20-Pin, 4mm x 4mm TQFN-EP Package MAX5977A/MAX5977B.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-5553; Rev 1; 1/11 TION KIT EVALUA BLE A IL A V A 1V to 16V, Single-Channel, Hot-Swap Controllers with Precision Current-Sensing Output General Description The MAX5977A/MAX5977B hot-swap controllers provide complete protection for systems with a 1V to 16V singlesupply voltage. During the initial insertion, the hot-swap controllers limit the inrush current from damaging the board or from shorting out the backplane. When the input voltage is above the undervoltage threshold and below the overvoltage threshold, a 5FA current source powered from the internal 5V charge pump drives the gate of an external n-channel MOSFET, providing a slow turn-on response.