LTC4222
Info: : PRODUCTION
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LTC4222

Dual Hot Swap Controller with I2C Compatible Monitoring

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 8
1ku List Price Starting From $6.96
Features
  • Allows Safe Insertion Into a Live Backplane
  • 10-Bit ADC Monitors Currents and Voltages
  • I2C/SMBus Interface
  • Wide Operating Voltage Range: 2.9V to 29V
  • dI/dt Controlled Soft-Start
  • High Side Drive for External N-Channel MOSFETs
  • No External Gate Capacitors Required
  • Input Overvoltage/Undervoltage Protection
  • Optional Latchoff or Auto-Retry After Faults
  • Alert Host After Faults
  • Inrush Current Limit with Foldback
  • Available in 32-Pin (5mm × 5mm) QFN and 36-Pin SSOP Packages
Additional Details
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The LTC4222 Hot Swap controller allows two power paths to be safely inserted and removed from a live backplane. Using external N-channel pass transistors, board supply voltages and inrush currents are ramped up at an adjustable rate. An I2C interface and on-board ADC allows for monitoring of current, voltage and fault status for each channel.

The device features adjustable, analog, foldback current limit circuits and a Soft-Start circuit that sets the dI/dt of the inrush currents. An I2C interface may configure the part to latch off or automatically restart after the LTC4222 detects a fault on either channel.

The controller has additional features to interrupt the host when a fault has occurred, notify when output power is good, detect insertion of a load card and power-up either automatically upon insertion or wait for an I2C command to turn on.

Applications

  • Live Board Insertion
  • Electronic Circuit Breakers
  • Computers, Servers
  • Platform Management
Part Models 8
1ku List Price Starting From $6.96

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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LTC4222CUH#PBF
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LTC4222CUH#TRPBF
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LTC4222IG#PBF
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LTC4222IUH#PBF
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Product Lifecycle

PCN

Nov 18, 2019

- 19_0266

Laser Top Mark for SSOP36/44/48 Packages assembled in ADPG and UTAC

LTC4222CG#PBF

PRODUCTION

LTC4222CG#TRPBF

PRODUCTION

LTC4222IG#PBF

PRODUCTION

LTC4222IG#TRPBF

PRODUCTION

Jan 20, 2022

- 21_0269

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC4222CUH#PBF

PRODUCTION

LTC4222CUH#TRPBF

PRODUCTION

LTC4222IUH#PBF

PRODUCTION

LTC4222IUH#TRPBF

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Nov 18, 2019

- 19_0266

arrow down

Laser Top Mark for SSOP36/44/48 Packages assembled in ADPG and UTAC

LTC4222CG#PBF

PRODUCTION

LTC4222CG#TRPBF

PRODUCTION

LTC4222IG#PBF

PRODUCTION

LTC4222IG#TRPBF

PRODUCTION

Jan 20, 2022

- 21_0269

arrow down

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC4222CUH#PBF

PRODUCTION

LTC4222CUH#TRPBF

PRODUCTION

LTC4222IUH#PBF

PRODUCTION

LTC4222IUH#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1134A

LTC4222 Demoboard | Dual Hot Swap Controller with I2C and ADC (Requires DC590)

Tools & Simulations

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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.

Reference Designs

Reference Designs 1

DE-10 Nano Kit

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Circuits from the lab

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Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
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