LTC4224-1
LTC4224-2
Info : RECOMMENDED FOR NEW DESIGNS
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LTC4224-1
LTC4224-2

Compact Dual Low Voltage Hot Swap Controller

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 16
1ku List Price Starting From $2.89
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 ≤1μs
  • 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
Additional Details
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The LTC4224 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 N-channel 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 is provided by a fast-acting current limit and timed circuit breakers. A FAULT pin signals 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.

Applications

  • Optical Networking
  • Low Voltage Hot Swap
  • Electronic Circuit Breakers
Part Models 16
1ku List Price Starting From $2.89

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC4224CDDB-1#TRMPBF
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LTC4224CDDB-1#TRPBF
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LTC4224CDDB-2#TRMPBF
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LTC4224CDDB-2#TRPBF
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LTC4224CMS-1#PBF
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LTC4224CMS-1#TRPBF
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LTC4224CMS-2#PBF
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LTC4224CMS-2#TRPBF
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LTC4224IDDB-1#TRMPBF
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LTC4224IDDB-1#TRPBF
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LTC4224IDDB-2#TRMPBF
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LTC4224IDDB-2#TRPBF
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LTC4224IMS-1#PBF
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LTC4224IMS-1#TRPBF
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LTC4224IMS-2#PBF
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LTC4224IMS-2#TRPBF
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Product Lifecycle

PCN

Feb 4, 2020

- 20_0130

Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

LTC4224CMS-1#PBF

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LTC4224CMS-1#TRPBF

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PCN

Feb 4, 2020

- 20_0130

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Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

LTC4224CMS-1#PBF

PRODUCTION

LTC4224CMS-1#TRPBF

PRODUCTION

LTC4224CMS-2#PBF

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LTC4224CMS-2#TRPBF

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LTC4224IMS-1#PBF

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LTC4224IMS-1#TRPBF

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LTC4224IMS-2#TRPBF

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

reference details image

DC1364A-B

LTC4224-2 Demoboard | Dual Low Voltage Hot Swap Controller with Auto-Retry

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DC1364A-A

LTC4224-1 Demo Board | Dual Low Voltage Hot Swap Controller with Latch-off

Tools & Simulations

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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