Power Management Hot Swap Controllers Low Voltage Hot Swap Controllers

LTC4232 - 5A Integrated Hot Swap Controller

LTC4352 - Low Voltage Ideal Diode Controller with Monitoring

LTC4219 - 5A Integrated Hot Swap Controller

Features

  • Small Footprint
  • 33mΩ MOSFET with RSENSE
  • Available in Preset 12V and 5V Versions
  • Adjustable, 10% Accurate Current Limit
  • Current and Temperature Monitor Outputs
  • Overtemperature Protection
  • Adjustable Current Limit Timer Before Fault
  • Power Good and Fault Outputs
  • Adjustable Inrush Current Control
  • Available in 16-Lead 5mm x 3mm DFN Packages

Typical Application

LTC4219 Typical Application
LTC4219 Typical Application

Description

The LTC4219 is an integrated solution for Hot Swap applications that allows a board to be safely inserted and removed from a live backplane. The part integrates a Hot Swap controller, power MOSFET and current sense resistor in a single package for small form factor applications.

The LTC4219 provides separate inrush current control and a 10% accurate 5.6A current limit with foldback current limiting. The current limit threshold can be adjusted dynamically using an external pin. Additional features include a current monitor output that amplifies the sense resistor voltage for ground referenced current sensing and a MOSFET temperature monitor output. Thermal limit and power good monitoring are also provided. The power good detection level and foldback current limit profile are internally preset for 5V (LTC4219-5) and 12V (LTC4219-12) applications.

Packaging

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

DFN-16

LTC4219 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC4219CDHC-12#PBF DFN 16 C $4.79 $3.35 View
LTC4219CDHC-12#TRPBF DFN 16 C $3.41 View
LTC4219CDHC-5#PBF DFN 16 C $4.79 $3.35 View
LTC4219CDHC-5#TRPBF DFN 16 C $3.41 View
LTC4219IDHC-12#PBF DFN 16 I $5.74 $4.02 View
LTC4219IDHC-12#TRPBF DFN 16 I $4.08 View
LTC4219IDHC-5#PBF DFN 16 I $5.74 $4.02 View
LTC4219IDHC-5#TRPBF DFN 16 I $4.08 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
DC1594A-A LTC4219-12 12V, 5A Integrated Hot Swap Controller $50.00
DC1594A-B LTC4219-5 5V, 5A Integrated Hot Swap Controller $50.00
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Click here to view our complete list of demo boards

Applications

  • RAID Systems
  • Server I/O Cards
  • Industrial

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Related models available in LTspice IV
LTC4219-12
LTC4219-5

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