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LTC4224-2

Features: `Allows Safe Board Insertion and Removal from a Live Backplane`Controls Load Voltages from 1V to 6V`No Gate Components Required`Adjustable Current Limit with Circuit Breaker`Limits Peak Fault Current in 1s`No External Timing Capacitor Required`Adjustable Supply Voltage Power-Up Rate`Gate...

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SeekIC No. : 004402491 Detail

LTC4224-2: Features: `Allows Safe Board Insertion and Removal from a Live Backplane`Controls Load Voltages from 1V to 6V`No Gate Components Required`Adjustable Current Limit with Circuit Breaker`Limits Peak Fa...

LTC4224-2 Data Sheet

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Part Number:
LTC4224-2
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/25

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Product Details

Description



Features:

`Allows Safe Board Insertion and Removal from a Live Backplane
`Controls Load Voltages from 1V to 6V
`No Gate Components Required
`Adjustable Current Limit with Circuit Breaker
`Limits Peak Fault Current in 1s
`No External Timing Capacitor Required
`Adjustable Supply Voltage Power-Up Rate
`Gate Drive for External N-channel MOSFET
`LTC4224-1: Latchoff After Fault
`LTC4224-2: Automatic Retry After Fault
`10-Lead MSOP and 3mm * 2mm DFN Packages


Application

·Optical Networking
·Low Voltage Hot Swap
·Electronic Circuit Breakers


Specifications

Supply Voltage (VCCn) .................................. 0.3V to 9V
Input Voltages
SENSEn, ONn ................................................ 0.3V to 9V
Output Voltages
GATEn VCC (Note 4) .................................. 0.3V to 5V
FAULT ........................................................... 0.3V to 9V
Operating Temperature Range
LTC4224C ....................................................... 0 to 70
LTC4224I..................................................... 40 to 85
Storage Temperature Range .................... 65 to 150
Lead Temperature Range (Soldering, 10 sec)
MSOP Package ......................................................... 300


Description

The LTC4224-2 Dual Low Voltage Hot Swap™ controller allows a board to be safely inserted and removed from a live backplane. It controls two supplies with external Nchannel MOSFETs and operates with one supply as low as 1V provided the other supply is 2.7V or greater.

The LTC4224 can ramp up the supplies in any order and at adjustable ramp rates. To minimize the number of external components and PCB area, the gate capacitor is optional, all timing delays are generated internally, and the ON pins have integrated pull-up currents. Protection against overcurrent faults of LTC4224-2 is provided by a fastacting current limit and timed circuit breakers. A FAULT pinsignals overcurrent faults.

The LTC4224-1 remains off after a fault, while the LTC4224-2 automatically tries to apply power again after a four second cool-down period.




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