LTC4210-1
LTC4210-2

RECOMMENDED FOR NEW DESIGNS

Hot Swap Controller in 6-Lead SOT-23 Package

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Overview

  • Allows Safe Board Insertion and Removal from a Live Backplane
  • Adjustable Analog Current Limit with Circuit Breaker
  • Fast Response Limits Peak Fault Current
  • Automatic Retry or Latch Off On Current Fault
  • Adjustable Supply Voltage Power-Up Rate
  • High Side Drive for External MOSFET Switch
  • Controls Supply Voltages from 2.7V to 16.5V
  • Undervoltage Lockout
  • Adjustable Overvoltage Protection
  • Low Profile (1mm) SOT-23 (ThinSOT™) Package

The LTC4210 is a 6-pin SOT-23 Hot Swap™ controller that allows a board to be safely inserted and removed from a live backplane. An internal high side switch driver controls the GATE of an external N-channel MOSFET for a supply voltage ranging from 2.7V to 16.5V. The LTC4210 provides the initial timing cycle and allows the GATE to be ramped up at an adjustable rate.

The LTC4210 features a fast current limit loop providing active current limiting together with a circuit breaker timer. The signal at the ON pin turns the part on and off and is also used for the reset function.

This part is available in two options: the LTC4210-1 for automatic retry on overcurrent fault and the LTC4210-2 for latch off on an overcurrent fault.

Range Retry / Latchoff
LTC4210-1 2.7V to 16.5V Retry After Fault
LTC4210-2 2.7V to 16.5V Latch Off After Fault
LTC4210-3 2.7V to 7V Retry After Fault
LTC4210-4 2.7V to 7V Latch Off After Fault

Applications

  • Hot Board Insertion
  • Electronic Circuit Breaker
  • Industrial High Side Switch/Circuit Breaker
LTC4210-1
LTC4210-2
Hot Swap Controller in 6-Lead SOT-23 Package
Single Channel 5V Hot Swap Controller Power-Up Sequence Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 4

Technical Articles 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
Protection Switches & Controllers 1
LTC4224-1
LTC4224-2
Compact Dual Low Voltage Hot Swap Controller
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Tools & Simulations

LTspice 3

Models for the following parts are available in LTspice:

  • LTC4210-1
  • LTC4210-2
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
DC628A

LTC4210-1CS6 | Single Channel 5V Hot Swap Controller, VIN = +5V, VOUT = 5V/6A

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Product Details

DC628A: Demo Board for the LTC4210-1 Hot Swap Controller in 6-Lead SOT-23 Package.
DC628A
LTC4210-1CS6 | Single Channel 5V Hot Swap Controller, VIN = +5V, VOUT = 5V/6A
DC628A - Schematic

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