LTC4224-1
LTC4224-2
RECOMMENDED FOR NEW DESIGNS
Compact Dual Low Voltage Hot Swap Controller
- Part Models
- 16
- 1ku List Price
- Starting From $3.66
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
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Product Selector Card 1
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) | ||
| LTC4224CDDB-1#TRPBF | 10-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC4224CDDB-2#TRMPBF | 10-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC4224CDDB-2#TRPBF | 10-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC4224CMS-1#PBF | 10-Lead MSOP | ||
| LTC4224CMS-1#TRPBF | 10-Lead MSOP | ||
| LTC4224CMS-2#PBF | 10-Lead MSOP | ||
| LTC4224CMS-2#TRPBF | 10-Lead MSOP | ||
| LTC4224IDDB-1#TRMPBF | 10-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC4224IDDB-1#TRPBF | 10-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC4224IDDB-2#TRMPBF | 10-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC4224IDDB-2#TRPBF | 10-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC4224IMS-1#PBF | 10-Lead MSOP | ||
| LTC4224IMS-1#TRPBF | 10-Lead MSOP | ||
| LTC4224IMS-2#PBF | 10-Lead MSOP | ||
| LTC4224IMS-2#TRPBF | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
||
| 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 |
||
| 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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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Hot Swap 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.
Evaluation Kits
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