LTC4224-1
LTC4224-2

RECOMMENDED FOR NEW DESIGNS

Compact Dual Low Voltage Hot Swap Controller

Part Models: 16
1ku List Price: Starting From $3.32

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Overview

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

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 $3.32

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4224CDDB-1#TRMPBF	10-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224CDDB-1#TRPBF	10-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224CDDB-2#TRMPBF	10-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224CDDB-2#TRPBF	10-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224CMS-1#PBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224CMS-1#TRPBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224CMS-2#PBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224CMS-2#TRPBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224IDDB-1#TRMPBF	10-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224IDDB-1#TRPBF	10-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224IDDB-2#TRMPBF	10-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224IDDB-2#TRPBF	10-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224IMS-1#PBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224IMS-1#TRPBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224IMS-2#PBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4224IMS-2#TRPBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)
		PCN24_0003_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC4224CMS-1#PBF	PRODUCTION
LTC4224CMS-1#TRPBF	PRODUCTION
LTC4224CMS-2#PBF	PRODUCTION
LTC4224CMS-2#TRPBF	PRODUCTION
LTC4224IMS-1#PBF	PRODUCTION
LTC4224IMS-1#TRPBF	PRODUCTION
LTC4224IMS-2#PBF	PRODUCTION
LTC4224IMS-2#TRPBF	PRODUCTION
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0130_Form Material_Report
LTC4224CMS-1#PBF	PRODUCTION
LTC4224CMS-1#TRPBF	PRODUCTION
LTC4224CMS-2#PBF	PRODUCTION
LTC4224CMS-2#TRPBF	PRODUCTION
LTC4224IMS-1#PBF	PRODUCTION
LTC4224IMS-1#TRPBF	PRODUCTION
LTC4224IMS-2#PBF	PRODUCTION
LTC4224IMS-2#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Protection Switches & Controllers 1
LTC4226	PRODUCTION	Wide Operating Range Dual Hot Swap Controller

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC4224-1
LTC4224-2

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.