ADM1170 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADM1170
Manufacturer

ADI
ChipWorker Part#

CW389417925
Description

1.6V to 16.5V Hot Swap Controller
Documentation

Datasheet

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ADM1170 Specifications

Attribute	Attribute Value

Part Number	ADM1170
Manufacturer	ADI
ChipWorker Part#	CW389417925
Documentation	Datasheet
Case/Package	8 ld TSOT
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Product Lifecycle Status	Active

Product Description

Product Details
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 the external 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 hotswap 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
**Applications**
Hot Swap Board Insertion – Line Cards, Raid Systems
Electronic Circuit Breaker
Industrial High Side Switch/Circuit Breaker
### Features and Benefits
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

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