LTC4233

RECOMMENDED FOR NEW DESIGNS

10A Guaranteed SOA Hot Swap Controller

Data Sheet Product Selection Table
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Overview

  • Allows Safe Board Insertion into a Live Backplane
  • Small Footprint
  • 10mΩ MOSFET Including RSENSE
  • Safe Operating Area Guaranteed at 41W, 30ms
  • Wide Operating Voltage Range: 2.9V to 15V
  • Adjustable, 11% 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
  • 2.5% Accurate Undervoltage and Overvoltage Protection
  • Available in 38-Lead (5mm × 9mm) QFN Package
  • Pin Compatible with LTC4234

The LTC4233 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 MOSFET Safe Operating Area is production tested and guaranteed for the stresses in Hot Swap applications.

The LTC4233 provides separate inrush current control and an 11% accurate 11.2A current limit with output dependent foldback. The current limit threshold can be adjusted dynamically using the ISET 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. For a 20A pin compatible version see LTC4234.

Applications

  • High Availability Servers
  • Solid State Drives
  • Industrial
  • Network Routers and Switches
LTC4233
10A Guaranteed SOA Hot Swap Controller
12V, 10A Card Resident Application with Auto-Retry Power-Up Waveforms Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
LTC4232
RECOMMENDED FOR NEW DESIGNS 5A Integrated Hot Swap Controller
LTC4234
RECOMMENDED FOR NEW DESIGNS 20A Guaranteed SOA Hot Swap Controller
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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LTC4233
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.

Evaluation Kits

eval board
schematic 1
DC2116A-B

LTC4233 Demo Board | 10A Guaranteed SOA Hot Swap Controller

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Product Details

Demonstration circuit 2116A features the LTC4233/LTC4234 10A/20A Guaranteed SOA Hot Swap™ Controllers. The LTC4233 and LTC4234 are ideally suited for compact power distribution control in 2.9V to 15V applications for hot board insertion protection, high side power switching, and electronic circuit breaker functions.
DC2116A-B
LTC4233 Demo Board | 10A Guaranteed SOA Hot Swap Controller
DC2116A - Schematic

Latest Discussions

5 Years Ago
LTC4234 reverse current protection
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