ADM1073ARUZ Part Information
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.
- 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
|Controller Applications||Central Office Switching -48V Distributed Power Systems Negative Power Supply Control|
|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)|
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
Where can I find additional details, specifications and documents for a ADM1073ARUZ?
Additional datasheets, footprints and schematics for ADM1073ARUZ are listed in our Part Details tab. You can also find the ADM1073ARUZ image and similar parts on this details page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for ADM1073ARUZ in the Pricing & Inventory tab next to part details. You can view ADM1073ARUZ price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does ADM1073ARUZ fall under?
The ADM1073ARUZ is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.
Can I view similar or alternative parts?
You can view similar parts to ADM1073ARUZ when available in the Power Management range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the ADM1073ARUZ you can contact the distributor directly for product support, shipping queries etc.
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.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for ADM1073ARUZ often in real-time on the comparison pages.
What if I can't find stock of ADM1073ARUZ?
You can fill out our help required form which you can use to request a quote for ADM1073ARUZ from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.