ADM1073ARUZ Part Information

Details for ADM1073ARUZ by Analog Devices

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Part Description

The ADM1073 is a full-feature, negative voltage, hot swap controller that allows boards to be safely inserted and removed from a live −48 V backplane. The part provides precise and robust current limiting, and protection against both transient and nontransient short circuits in overvoltage and undervoltage conditions. The ADM1073 can operate from a negative voltage of −18 V to −80 V and can tolerate transient voltages of up to −200 V. Inrush current is limited to a programmable value by control- ling the gate drive of an external N-channel FET. The maximum current limit is set by the choice of the sense resistor, RSENSE. A built-in soft start function allows control of the inrush current profile by an external capacitor on the soft start (SS) pin. An external capacitor on the TIMER pin determines the time for which the FET gate is controlled to be high when maximum inrush current flows. The ADM1073 employs a limited consec- utive retry scheme, whereby, if the load capacitance is not fully charged within one attempt, the FET gate is pulled low and retries after a cooling period.

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Part Features

  • Precision inrush linear current limit Soft start inrush current limit profiling Precision maximum on-time in current limit Maximum on-time modulated by FET drain voltage for additional SOA protection Adjustable PWM retry scheme and multiple device cascading capability for charging large capacitive loads Limited number of PWM cycles for FET SOA protection under short circuit condition Ability to configure device as continuous autoretry with a 5-second cooling period Shunt regulator topology to allow very large transient input supplies Separate UV and OV pins for programming allowable input supply window Programmable OV hysteresis using current source into pin when supply is high Programmable UV hysteresis using current sink from pin when supply is low PWRGD output indicates when capacitor charging complete SPLYGD output indicates when supply is within valid window LATCHED output indicates the end of the retry cycle before load capacitance is charged SHDN input for user-commanded shutdown RESTART input for user-triggered 5-second shutdown and autorestartu2014 virtual card reseat

Part Specifications

Controller Applications Central Office Switching -48V Distributed Power Systems Negative Power Supply Control
Input Voltage -
Supply Voltage Min -80V
Supply Voltage Max -35V
Controller IC Case Style TSSOP
No. of Pins 14Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range ADM1073 Series
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (07-Jul-2017)
RoHS Compliant

Alternative Part Descriptions

  • Hot Swap Controller 1-Ch -80V 14-TSSOP | RS Components
  • IC, HOT SWAP CTRLR, -48V, TSSOP-14; Controller Applications:Central Office Switching, -48V Distributed Power Systems, Negative Power Supply Control; Input Voltage:-; Supply Voltage Min:-80V; Supply Voltage Max:-35V RoHS Compliant: Yes | Newark Electronics

Frequently Asked Questions

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What category does ADM1073ARUZ fall under?

The ADM1073ARUZ is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

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Is the ADM1073ARUZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Farnell.

Which authorised distributors for ADM1073ARUZ have stock available?

Authorised distributors including RS Components and Newark Electronics have stock available or on a lead time for ADM1073ARUZ.

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