ADM1075-2ARUZ High Voltage Hot Swap Controllers by Analog Devices

Status: Production
Series: ADM1075
RoHS: Compliant
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The ADM1075 is a full feature, negative voltage, hot swap controllerwith constant power foldback and high accuracy digital currentand voltage measurement that allows boards to be safely insertedand removed from a live -48 V backplane. The part providesprecise and robust current limiting and protection against bothtransient and nontransient short circuits and overvoltage andundervoltage conditions. The ADM1075 typically operates froma negative voltage of -35 V to -80 V and, due to shunt regulation,has excellent voltage transient immunity. The operating range ofthe part is flexible due to the shunt regulator, and the part can bepowered 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 bychoosing the appropriate model. The maximum current limit isset by the combination of the sense resistor, RSENSE, and the inputvoltage on the ISET pin, using external resistors. This allows finetuning of the trip voltage so that standard sense resistors can beused. Inrush current is limited to this programmable value bycontrolling the gate drive of an external N-channel FET. A builtinsoft start function allows control of the inrush current profile byan external capacitor on the soft start (SS) pin.Refer to the datasheet for more information.PRODUCT HIGHLIGHTS Constant Power Foldback. Maximum FET power set by a PLIM resistor divider. This eases complexity when designing to maintain FET SOA. Adjustable Current Limit. The current limit is adjustable via the ISET pin allowing for the use of a standard value sense resistor. 12-Bit ADC. Accurate voltage, current, and power measurements. Also enables calculation of energy consumption over time. PMBus Interface. PMBus fast mode compliant interface used to read back status and data registers and set warning and fault limits. Fault Recording. Latched status registers provide useful debugging information to help trace faults in high reliability systems. Built-In Soft Start. Soft start capacitor controls inrush current profile with di/dt control.

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Prices starting from US$7.75

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Constant power foldback for FET SOA protection
Precision (<1.0%) current and voltage measurement
Controls inrush and faults for negative supply voltages
Suitable for wide input range due to internal shunt regulator
25 mV/50 mV full-scale sense voltage
Fine tune current limit to allow use of standard sense resistor
Soft start inrush current limit profiling
1% accurate UVH and OV pins, 1.5% accurate UVL pin
PMBus interface for control, telemetry, and fault recording
28-lead TSSOP
-40°C to 105°C junction temperature (TJ) operating range

Alternative Descriptions

-48V Hot swap and power monito | Analog Devices

Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADM1075-2ARUZ?

Additional datasheets, footprints and schematics for ADM1075-2ARUZ are listed on our Part Details page. You can also find images and similar parts to ADM1075-2ARUZ on this page.

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What category does ADM1075-2ARUZ fall under?

The ADM1075-2ARUZ is listed under High Voltage Hot Swap Controllers.

Can I view similar or alternative parts?

You can view similar parts to ADM1075-2ARUZ when available in the High Voltage Hot Swap Controllers range under the specifications section at the bottom of the details page.

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Is the ADM1075-2ARUZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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Authorised distributors including Analog Devices and Richardson RFPD have stock available or on a lead time for ADM1075-2ARUZ.

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