LTC4232-1

RECOMMENDED FOR NEW DESIGNS

LTC4232-1

5A Integrated Hot Swap Controller

RECOMMENDED FOR NEW DESIGNS

12V, 5A Card Resident Application with Auto-Retry slide

12V, 5A Card Resident Application with Auto-Retry

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Part Models 4

1ku List Price Starting From $4.01

Features

Reduced 16ms Turn-On Delay
Small Footprint
33mΩ MOSFET with R_SENSE
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
Pin Compatible with LTC4217 (DFN Package Only)
Available in 16-Lead 5mm × 3mm DFN Package

Additional Details

The LTC4232-1 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 LTC4232-1 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.

The PCI Express compliant LTC4232-1 allows faster turn-on than the LTC4232 by providing a shorter (16ms) debounce delay and external control of the GATE ramp rate.

Applications

RAID Systems, Solid State Drives
Server I/O Cards
PCI Express Systems
Industrial

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 4

1ku List Price Starting From $4.01

Technical Documents 3

LTC4232-1: 5A Integrated Hot Swap Controller Data Sheet 01/21/2016

R536 Reliability Data 03/26/2018

DC1886B - Demo Manual 10/13/2014

Reference Materials 1

Hot Swap Controllers 08/02/2023

Design Resources 4

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
LTC4232CDHC-1#PBF	16-Lead DFN (5mm x 3mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTC4232CDHC-1#TRPBF	16-Lead DFN (5mm x 3mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTC4232IDHC-1#PBF	16-Lead DFN (5mm x 3mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTC4232IDHC-1#TRPBF	16-Lead DFN (5mm x 3mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LTC4232CDHC-1#PBF
Pin/Package Drawing
16-Lead DFN (5mm x 3mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LTC4232CDHC-1#TRPBF
Pin/Package Drawing
16-Lead DFN (5mm x 3mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LTC4232IDHC-1#PBF
Pin/Package Drawing
16-Lead DFN (5mm x 3mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LTC4232IDHC-1#TRPBF
Pin/Package Drawing
16-Lead DFN (5mm x 3mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

Alternative Parts 3

Parts	Product Life Cycle	Description
LTC4217	RECOMMENDED FOR NEW DESIGNS	2A Integrated Hot Swap Controller
LTC4232	RECOMMENDED FOR NEW DESIGNS	5A Integrated Hot Swap Controller
LTC4233	RECOMMENDED FOR NEW DESIGNS	10A Guaranteed SOA Hot Swap Controller

DC1886B-B

LTC4232IDHC-1 Demo Board | 5A Integrated Hot Swap Controller with 16ms Turn-On Delay

DC1886B-B

LTC4232IDHC-1 Demo Board | 5A Integrated Hot Swap Controller with 16ms Turn-On Delay

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Product Detail

Demonstration circuit 1886B features the LTC4232 and the LTC4232-1 5A integrated Hot Swap^™ controllers. The LTC4232 is ideally suited for demanding power distribution control in 2.9V to 15V applications for hot board insertion protection, high side power switching, and electronic circuit breaker functions.

Resources

PDF

DC1886B - Demo Manual

217.00K

PDF

DC1886B - Schematic

36.00K

ZIP

DC1886B - Design Files

683.00K

DC1886B-B

LTC4232IDHC-1 Demo Board | 5A Integrated Hot Swap Controller with 16ms Turn-On Delay

LTspice

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.