The ADM1075 is a full feature, negative voltage, hot swap controller with constant power foldback and high accuracy digital current and voltage measurement 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 and overvoltage and undervoltage conditions. The ADM1075 typically operates from a negative voltage of -35 V to -80 V and, due to shunt regulation, has excellent voltage transient immunity. The operating range of the part is flexible due to the shunt regulator, and the part can be powered directly by a 10 V rail to save shunt power dissipation (see the Powering the ADM1075 section for more details).
A full-scale current limit of 25 mV or 50 mV can be selected by choosing the appropriate model. The maximum current limit is set by the combination of the sense resistor, RSENSE, and the input voltage on the ISET pin, using external resistors. This allows fine tuning of the trip voltage so that standard sense resistors can be used. Inrush current is limited to this programmable value by controlling the gate drive of an external N-channel FET. A builtin soft start function allows control of the inrush current profile by an external capacitor on the soft start (SS) pin.
Refer to the datasheet for more information.
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|ADM1075: −48 V Hot Swap Controller and Digital Power Monitor with PMBus Interface Data Sheet (Rev C, 04/2014) (pdf, 759 kB)||Data Sheets|
|AN-1135: ADC Sampling Information ADM1275/ADM1276/ADM1075 (pdf, 171 kB)||Application Notes|
Webcast: Hot Swap Design, How to Get it Right
This webcast closely examines the components of a hot swap design and find out what's critical to getting it right.
|UG-733: ISO-CABLEZ User Guide (pdf, 343 kB)||User Guides|
|UG-548: ADM1075 Mini Evaluation Board User Guide (pdf, 664 kB)||User Guides|
|UG-353: Hot Swap and Power Monitor Software (pdf, 478 kB)||User Guides|
UG-404: USB-SDP-CABLEZ Serial Interface Board
(pdf, 536 kB)
The USB-SDP-CABLEZ is primarily used to communicate with certain Analog Devices evaluation boards.
|UG-304: Evaluating the ADM1075 −48 V Hot-Swap Controller and Digital Power Monitor with PMBus Interface (pdf, 1036 kB)||User Guides|
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Hot Swap Controller Simulaton Model
Simulation model to help users simulate their designs with ADM1275 or ADM1276 hot swap controls.
|SPICE Models All||HTML|
Hot-Swap & Power Monitoring Evaluation Software
Requires the ADMxxxx Common Run-time to be installed in order to provide driver support for the USB-SMBUS-CABLEZ and USB-SDP-CABLEZ interface connectors.
ADMxxxx Common Run-Time
This run-time installer is shared between the SuperSequencer, ADM1175-92, and the Hot Swap and Power Monitor tools. Contains driver support for the USB-SMBUS-CABLEZ and USB-SDP-CABLEZ interface connectors.
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.