Power Management Hot Swap Controllers Low Voltage Hot Swap Controllers

LTC4227-1 and -2 - Dual Ideal Diode and Single Hot Swap Controller

LTC4352 - Low Voltage Ideal Diode Controller with Monitoring

LTC4232 - 5A Integrated Hot Swap Controller

Features

  • Small Footprint
  • 33mΩ MOSFET with RSENSE
  • Wide Operating Voltage Range: 2.9V to 15V
  • 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
  • 2% Accurate Undervoltage and Overvoltage Protection
  • Available in 16-Lead 5mm × 3mm DFN Package

Typical Application

LTC4232 Typical Application
LTC4232 Typical Application

Description

The LTC®4232 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 LTC4232 provides separate inrush current control and a 10% accurate 5A 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, overvoltage, undervoltage and power good monitoring are also provided.

Packaging

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

DFN-16

LTC4232 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC4232CDHC#PBF DFN 16 C $4.79 $3.35 View
LTC4232CDHC#TRPBF DFN 16 C $3.41 View
LTC4232IDHC#PBF DFN 16 I $5.74 $4.02 View
LTC4232IDHC#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
DC1886A LTC4232 - 5A Integrated Hot Swap Controller Contact Factory
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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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LTC4232

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