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ADM4210

Features: ·Controls supply rails from 2.7 V to 16.5 V·Allows protected board removal and insertion to a live backplane·External sense resistor provides adjustable analog current limit with circuit breaker·Peak fault current limited with fast response Charge pumped gate drive for external N-FET swi...

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SeekIC No. : 004275835 Detail

ADM4210: Features: ·Controls supply rails from 2.7 V to 16.5 V·Allows protected board removal and insertion to a live backplane·External sense resistor provides adjustable analog current limit with circuit b...

ADM4210 Data Sheet

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Part Number:
ADM4210
Supply Ability:
5000

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  • 1~5000
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  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·Controls supply rails from 2.7 V to 16.5 V
·Allows protected board removal and insertion to a live backplane
·External sense resistor provides adjustable analog current limit with circuit breaker
·Peak fault current limited with fast response Charge pumped gate drive for external N-FET switch
·Automatic retry or latch-off during current fault
·Undervoltage lockout
·Low profile (1 mm), 6-lead, TSOT package
·Pin compatible with LTC4210-1 and LTC4210-2


Application

·Hot swap board insertion: line cards, raid systems
·Industrial high-side switches/circuit breakers
·Electronic circuit breakers


Pinout

Connection Diagram


Specifications

Parameter Rating
VCC Pin −0.3 V to +20 V
SENSE Pin −0.3 V to +20 V
VCC − SENSE ±5 V
TIMER Pin −0.3 V to (VCC + 0.3 V)
ON (ON-CLR) Pin −0.3 V to +20 V
GATE Pin −0.3 V to (VCC + 11 V)
Storage Temperature Range −65°C to +125°C
Operating Temperature Range −40°C to +85°C
Lead Temperature (10 sec) 300°C
Junction Temperature 150°C
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.


Description

The ADM4210 is a hot swap controller that safely enables a printed circuit board to be removed and inserted to a live backplane. This is achieved using an external N-channel power MOSFET with a current control loop that monitors the load current through a sense resistor. An internal charge pump is used to enhance the gate of the N-channel FET. When an overcurrent condition is detected, the gate voltage of the FET is reduced to limit the current flowing through the sense resistor. During an overcurrent condition, the TIMER cap determines the amount of time the FET remains at a current limiting mode of operation until it is shut down. The ON (ON-CLR) pin is the enable input for the device and can be used to monitor the input supply voltage. The ADM4210 operates with a supply voltage ranging from 2.7 V to 16.5 V.

The ADM4210 is available in two options: the 1 with automatic retry for overcurrent fault and the 2 with latch off for an overcurrent fault. Toggling the ON (ON-CLR) pin resets a latched fault. The ADM4210 is packaged in a 6-lead TSOT.




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