LTC4352
Info : RECOMMENDED FOR NEW DESIGNS
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LTC4352

Low Voltage Ideal Diode Controller with Monitoring

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 12
1ku List Price Starting From $3.02
Features
  • Low Loss Replacement for Power Diode
  • Controls N-Channel MOSFET
  • 0V to 18V Supply ORing or Holdup
  • 0.5μs Turn-On and Turn-Off Time
  • Undervoltage and Overvoltage Protection
  • Open MOSFET Detect
  • Status and Fault Outputs
  • Hot Swappable
  • Reverse Current Enable Input
  • 12-Pin MSOP and DFN (3mm × 3mm) Packages
Additional Details
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The LTC4352 creates a near-ideal diode using an external N-channel MOSFET. It replaces a high power Schottky diode and the associated heat sink, saving power and board area. The ideal diode function permits low loss power ORing and supply holdup applications.

The LTC4352 regulates the forward voltage drop across the MOSFET to ensure smooth current transfer in diode-OR applications. A fast turn-on reduces the load voltage droop during supply switch-over. If the input supply fails or is shorted, a fast turn-off minimizes reverse currents.

The controller operates with supplies from 2.9V to 18V. For lower voltages, an external supply is needed at the VCC pin. Power passage is disabled during undervoltage or overvoltage conditions. The controller also features an open MOSFET detect circuit that flags excessive voltage drop across the pass transistor in the on state. A REV pin enables reverse current, overriding the diode behavior when desired.

Applications

  • Redundant Power Supplies
  • Supply Holdup
  • Telecom Infrastructure
  • Computer Systems and Servers
Part Models 12
1ku List Price Starting From $3.02

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Oct 11, 2022

- 22_0244

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LTC4352CMS#PBF

PRODUCTION

LTC4352CMS#TRPBF

PRODUCTION

LTC4352HMS#PBF

PRODUCTION

LTC4352HMS#TRPBF

PRODUCTION

LTC4352IMS#PBF

PRODUCTION

LTC4352IMS#TRPBF

PRODUCTION

Feb 4, 2020

- 20_0129

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LTC4352CMS#PBF

PRODUCTION

LTC4352CMS#TRPBF

PRODUCTION

LTC4352HMS#PBF

PRODUCTION

LTC4352HMS#TRPBF

PRODUCTION

LTC4352IMS#PBF

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LTC4352IMS#TRPBF

PRODUCTION

Apr 18, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0244

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LTC4352CMS#PBF

PRODUCTION

LTC4352CMS#TRPBF

PRODUCTION

LTC4352HMS#PBF

PRODUCTION

LTC4352HMS#TRPBF

PRODUCTION

LTC4352IMS#PBF

PRODUCTION

LTC4352IMS#TRPBF

PRODUCTION

Feb 4, 2020

- 20_0129

arrow down

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LTC4352CMS#PBF

PRODUCTION

LTC4352CMS#TRPBF

PRODUCTION

LTC4352HMS#PBF

PRODUCTION

LTC4352HMS#TRPBF

PRODUCTION

LTC4352IMS#PBF

PRODUCTION

LTC4352IMS#TRPBF

PRODUCTION

Apr 18, 2022

- 22_0050

arrow down

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1329A

LTC4352 Low Voltage Ideal Diode Controller with Monitoring, LT4351 Replacement

Tools & Simulations

Tools & Simulations 1

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 5

Arria 10 (Rev E3- Linear Technology) Dev Kit

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altera-arria-10-fpga-development-kit

altera-arria-10-fpga-development-kit

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
View Detailed Reference Design external link
DK-DEV-5CGXC7NES Dev Kit

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altera-cyclone-v-gx-development-kit-discontinued

altera-cyclone-v-gx-development-kit-discontinued

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
View Detailed Reference Design external link
DK-DEV-5SGXEA7N Dev Kit

zoomopens a dialog

altera-stratix-v-gx-fpga-development-kit

altera-stratix-v-gx-fpga-development-kit

Circuits from the lab

tooltip Info:Circuits from the lab

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
View Detailed Reference Design external link
DK-VIDEO-4SGX230N Dev Kit

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altera-audio-video-development-kit-stratix-iv-gx-edition

altera-audio-video-development-kit-stratix-iv-gx-edition

Circuits from the lab

tooltip Info:Circuits from the lab

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
View Detailed Reference Design external link
DK-DEV-4SGX230N Dev Kit

zoomopens a dialog

altera-stratix-iv-gx-fpga-development-kit

altera-stratix-iv-gx-fpga-development-kit

Circuits from the lab

tooltip Info:Circuits from the lab

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
View Detailed Reference Design external link

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