The ADM1171 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 ADM1171 operates with a supply voltage ranging from 2.7V to 16.5V. 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 ADM1171-2 model. The magnitude of the current flowing through the Sense resistor can be determined by the voltage on the CSOUT pin The SS pin allows the user to control the soft start profile of the current ramp at start-up via an external capacitor. This device is available in two options: the ADM1171-1 will automatic retry for over-current fault and the ADM1171-2 will latch-off for an over-current fault. The ADM1171 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

Part#	Operating Range(V)	UV & OV Detection	Digital V & I Readback	Other Inputs	Other Outputs	Package	Price* (1000-4999)
ADM1170	1.6 to 16.5	ON pin (UV)	-	-	-	8 ld TSOT	$2.10
ADM1171	2.7 to 16.5	ON pin (UV)	-	-	CS_OUT	8 ld TSOT	$2.20
ADM1172	2.7 to 16.5	ON pin (UV)	-	PFI	PFO	8 ld TSOT	$2.00
ADM1175	3.15 to 16.5	ON pin (UV), ONB pin (OV)	I2C Interface, w/ 4 Addreses	CONV Pin	-	10-Lead MSOP	$2.50
ADM1176	3.15 to 16.5	ON pin (UV)	I2C Interface, w/ 16 Addresses	-	-	10-Lead MSOP	$2.50
ADM1177	3.15 to 16.5	ON pin (UV)	I2C Interface, w/ 4 Addreses	-	-	10-Lead MSOP	$2.50
ADM1178	3.15 to 16.5	ON pin (UV)	I2C Interface, w/ 4 Addreses	-	ALERTB	10-Lead MSOP	$2.70
ADM4210	2.7 to 16.5	ON pin (UV)	-	-	-	6-ld TSOT	$2.98

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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• Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).

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For detailed drawings and chemical composition please consult our  Package Site

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This is the acceptable operating range of the device. The various ranges specified are as follows:

• Commercial: 0 to +70 degrees Celsius
• Military : -55 to +125 degrees Celsius
• Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
• Automotive: -40 to +125 degrees Celsius

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.

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