Power Management Hot Swap Controllers Low Voltage Hot Swap Controllers

LTC4223 - Dual Supply Hot Swap Controller for Advanced Mezzanine Card

Features

  • Allows Safe Insertion into Live AMC or MicroTCA Backplane
  • Controls 12V Main and 3.3V Auxiliary Supplies
  • Limits Peak Fault Current in ≤1µs
  • Adjustable Current Limit with Circuit Breaker
  • Integrated 0.3Ω AUX Switch
  • High Side Current Sense
  • Gate Drive for External N-Channel MOSFET
  • Adjustable Response Time for Overcurrent Protection
  • Adjustable Supply Voltage Power-Up Rate
  • Thermal Shutdown Protection
  • LTC4223-1: Latch Off After Fault
  • LTC4223-2: Automatic Retry After Fault
  • 16-Lead SSOP and 5mm x 4mm DFN Packages

Typical Application

LTC4223 Typical Application
LTC4223 Typical Application

Description

The LTC4223 positive voltage Hot Swap controller allows a board to be safely inserted and removed from a live AMC or MicroTCA backplane. It controls the main 12V supply with an external N-channel MOSFET and the 3.3V auxiliary supply with an integrated switch. The 12V output ramp rate is adjustable and includes inrush current limiting. The 12V output is also protected against short circuit faults with a fast acting current limit and a 5% accurate timed circuit breaker. The 3.3V output includes both soft start and overcurrent protection.

The LTC4223 features a current monitor output for the 12V supply, and reports fault and power-good status for both supplies. It also detects card presence and allows independent control of the 12V and auxiliary 3.3V supply outputs. The LTC4223-1 features a latch-off circuit breaker, while the LTC4223-2 provides automatic retry after a fault.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

SSOP-16, DFN-16

LTC4223 Package Drawing
LTC4223 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC4223CDHD-1#PBF DFN 16 C $2.79 $1.95 View
LTC4223CDHD-1#TRPBF DFN 16 C $2.01 View
LTC4223CDHD-2#PBF DFN 16 C $2.79 $1.95 View
LTC4223CDHD-2#TRPBF DFN 16 C $2.01 View
LTC4223CGN-1#PBF SSOP 16 C $2.79 $1.95 View
LTC4223CGN-1#TRPBF SSOP 16 C $2.01 View
LTC4223CGN-2#PBF SSOP 16 C $2.79 $1.95 View
LTC4223CGN-2#TRPBF DFN 16 C $2.01 View
LTC4223IDHD-1#PBF DFN 16 I $3.34 $2.34 View
LTC4223IDHD-1#TRPBF DFN 16 I $2.40 View
LTC4223IDHD-2#PBF DFN 16 I $3.34 $2.35 View
LTC4223IDHD-2#TRPBF DFN 16 I $2.40 View
LTC4223IGN-1#PBF SSOP 16 I $3.34 $2.34 View
LTC4223IGN-1#TRPBF SSOP 16 I $2.40 View
LTC4223IGN-2#PBF SSOP 16 I $3.34 $2.34 View
LTC4223IGN-2#TRPBF SSOP 16 I $2.40 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1162A-A LTC4223-1 Dual Supply Hotswap Controller for AMC ( $75.00
DC1162A-B LTC4223-2 Dual Supply Hotswap Controller for AMC ( $75.00
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Click here to view our complete list of demo boards

Applications

  • Advanced Mezzanine Card, MicroTCA Systems
  • Workstations and Server I/O
  • Telecom Networks

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