ADM1170-1AUJZ-RL7 Low Voltage Hot Swap Controllers by Analog Devices

Status: Production
Series: ADM1170
RoHS: Compliant
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The ADM1170 is a Hot Swap controller that allows a board to be safely inserted and removed from a live backplane. This is achieved using a pass FET with a current control loop that monitors the input current using a sense resistor. An internal charge pump is used to enhance the gate of theexternal high side N-channel FET. When an over current condition is detected the gate voltage of the FET is reduced to limit the current flowing through the sense resistor. The ADM1170 operates with a supply voltage ranging from 2.7V to 16.5V. Using separate SENSE pins from VCC the ADM1170 allows for the hot swap of supplies ranging down to 1.6V. During an overcurrent condition the timer cap determines the amount of time the FET will remain in this condition. The ON (ON-CLR) pin is the enable input for the device and also acts as a latched fault reset for the ADM1170-2 model. The SS pin is used to control the inrush current profile by ramping up the current sense limit at a rate set by the SS capacitor. This device is available in two options: the ADM1170-1 will automatic retry for over-current fault and the ADM1170-2 will latch-off for an over-current fault. The ADM1170 is packaged in an 8-lead TSOT package

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Features

Allows Safe Board Insertion and
Removal from a Live Backplane
Supply Voltage Range from 2.7 V to 16.5V
Adjustable Analog Current Limit
with Circuit Breaker
Fast Response Limits Peak Fault
Current Allows Safe Board
Controls Supply Voltages from 1.6V to 16.5V
Automatic Retry or Latch-Off On Current Fault
Charge Pumped Gate Drive for External N-FET Switch
True Soft Start Control of Initial Current Profile
Undervoltage Lockout
8-pin TSOT Package

Alternative Descriptions

Positive Hotswap SS Auto Retry | Analog Devices


Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADM1170-1AUJZ-RL7?

Additional datasheets, footprints and schematics for ADM1170-1AUJZ-RL7 are listed on our Part Details page. You can also find images and similar parts to ADM1170-1AUJZ-RL7 on this page.

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What category does ADM1170-1AUJZ-RL7 fall under?

The ADM1170-1AUJZ-RL7 is listed under Low Voltage Hot Swap Controllers.

Can I view similar or alternative parts?

You can view similar parts to ADM1170-1AUJZ-RL7 when available in the Low Voltage Hot Swap Controllers range under the specifications section at the bottom of the details page.

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Is the ADM1170-1AUJZ-RL7 RoHS compliant?

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

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