LTC4365
Info : RECOMMENDED FOR NEW DESIGNS
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LTC4365

Overvoltage, Undervoltage and Reverse Supply Protection Controller

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 32
1ku List Price Starting From $1.81
Features
  • Wide Operating Voltage Range: 2.5V to 34V
  • Overvoltage Protection to 60V
  • Reverse Supply Protection to –40V
  • LTC4365: Blocks 50Hz and 60Hz AC Power
  • LTC4365-1: Fast (1ms) Recovery from Fault
  • No Input Capacitor or TVS Required for Most Applications
  • Adjustable Undervoltage and Overvoltage Protection Range
  • Charge Pump Enhances External N-Channel MOSFET
  • Low Operating Current: 125μA
  • Low Shutdown Current: 10μA
  • Compact 8-Lead, 3mm × 2mm DFN and TSOT-23 (ThinSOT) Packages
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LTC4365 protects applications where power supply input voltages may be too high, too low or even negative. It does this by controlling the gate voltages of a pair of external N-channel MOSFETs to ensure that the output stays within a safe operating range.The LTC4365 can withstand voltages between –40V and 60V and has an operating range of 2.5V to 34V, while consuming only 125μA in normal operation.

Two comparator inputs allow configuration of the overvoltage (OV) and undervoltage (UV) set points using an external resistive divider. A shutdown pin provides external control for enabling and disabling the MOSFETs as well as placing the device in a low current shutdown state. A fault output provides status of the gate pin pulling low. A fault is indicated when the part is in shutdown or the input voltage is outside the UV and OV set points.

The LTC4365 has a 36ms turn-on delay that debounces live connections and blocks 50Hz to 60Hz AC power. For fast recovery after faults, the LTC4365-1 has a reduced 1ms turn-on delay.

Applications

  • Portable Instrumentation
  • Industrial Automation
  • Laptops
  • Automotive Surge Protection
Part Models 32
1ku List Price Starting From $1.81

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Jul 31, 2020

- 20_0245

Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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DC1555C-B

LTC4365CTS8-1 Demo Board | High Voltage NFET Driver for UV, OV and Reverse Supply Protection with 1ms Fault Recovery

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DC1555C-B

LTC4365CTS8-1 Demo Board | High Voltage NFET Driver for UV, OV and Reverse Supply Protection with 1ms Fault Recovery

LTC4365CTS8-1 Demo Board | High Voltage NFET Driver for UV, OV and Reverse Supply Protection with 1ms Fault Recovery

Product Detail

Demonstration circuit DC1555C is intended to demonstrate the performance of the LTC4365 and LTC4365-1 Undervoltage, Overvoltage and Reverse Supply Protection Controllers. The LTC4365/LTC4365-1 protect circuits from input voltages that may be too high, too low or negative. It operates by controlling the gates of two back-to-back connected MOSFETs to keep the output in a safe range. The OV and UV protection levels are adjusted by resistive dividers at the OV and UV pins. Asserting the SHDN pin disables the MOSFETs and places the controller in a low-current shutdown state. The FAULT pin is asserted when the Controller is in shutdown mode or when the input voltage is outside of the UV or OV level.


 


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DC1555B

LTC4365CTS8 Demo Board: High Voltage NFET Driver for UV, OV and Reverse Supply Protection

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

Reference Designs

Reference Designs 3

Stratix 10 GX PCIE FPGA Development Kit

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intel-stratix-10-fpga-pcie-development-kit

intel-stratix-10-fpga-pcie-development-kit

Circuits from the lab

tooltip Info:Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with Intel PSG to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
  • The validated power solutions include uModules power products that address time and space constraints while delivering high efficiency, reliability, and low noise.
  • The actual power tree represents the best solution at time of design.
  • A recommended power tree has also been included to present the ideal solution at time of Stratix 10 GX PCIe development kit release. An updated alternate version of the power tree represents the latest solutions available from Analog Devices. For many applications, an intermediate rail is not ideal, so recommendations an alternate power tree that allow for direct power conversion from 12V input is provided below.
View Detailed Reference Design external link
Arria 10 (Rev E3- Linear Technology) Dev Kit

zoomopens a dialog

altera-arria-10-fpga-development-kit

altera-arria-10-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
Knightrider Zynq Ultrascale +MPSOC Automotive Power Delivery Board​ - Top View

Automotive ASIL-D Compliant Power Delivery Board

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knightrider-zynq-ultrascale

Automotive ASIL-D Compliant Power Delivery Board

knightrider-zynq-ultrascale

Circuits from the lab

tooltip Info:Circuits from the lab
Automotive ASIL-D Compliant Power Delivery Board

Features and Benefits

Xilinx Zynq® UltraScale+™ devices are the industry’s only cost-optimized FPGAs based on an advanced, production-proven 16nm architecture for best-in-class performance/watt.

Analog Devices, Inc. supports ASIL-D compliant automotive power delivery solutions for the Xilinx Zynq UltraScale+ MPSOC. The Knightrider board demonstrates the best-in-class power management supporting ASIL-D compliant solutions for functional safety.

Monolithic solutions are used to power Xilinx FPGA and/or SoC rails as well as other system rails. These regulators are highly integrated discrete solutions optimized for cost, efficiency and foot print.

ADI provides supporting documentation including power schematics, layout, LTpowerPlanner® and applicable LTpowerPlay® configuration files to enable you to validate the power solution for your application seamlessly.

For a complete list power designs and use cases, please contact your local FAE.

Key Power for full management devices are used as follows:

  • LT8672
  • LTC4365
  • MAX20410
  • MAX20478
  • MAX20438
  • LTC3307
  • MAX25229
  • MAX17510
View Detailed Reference Design external link

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