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Linear Technology: DC1203A Demo Board for LTC4357 Ideal Diode Controller

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Kit Overview

 

Demonstration Circuit 1203 ( DC1203ADC1203A ) showcases two LTC4357LTC4357s in a 48V , 5A Application. The Circuits are operational over a range of  9V to 75V and are fully independent, with the exception of a common ground. Input and output connections are made by 93 mil turrets which if removed, accommodate insertion of up to 12 guage wire for in-situ testing. Adequate copper is available for use up to 20A, with appropriate MOSFETs.

 

The DC1203ADC1203A Demonstration Circuit is built on a  2-layer board.  The two ideal diode circuits are entirely independent, sharing only a common ground. Banana jacks are provided for supply and load connections; turrets facilitate connection of voltmeters and scope probes.

 

The LTC4357LTC4357 is a positive high voltage ideal diode controller that drives an external N-channel MOSFET to replace a Schottky diode. When used in diode-OR and high current diode applications, the LTC4357LTC4357 reduces power consumption, heat dissipation, voltage loss and PC board area.

 

The LTC4357LTC4357 easily ORs power sources to increase total system reliability. In diode-OR applications, the LTC4357 controls the forward voltage drop across the MOSFET to ensure smooth current transfer from one path to the other without oscillation. If the power source fails or is shorted, a fast turn-off minimizes reverse current transients.

 

Key Applications: Servers, Routers, Switches, Mass Storage, Central Office Computing, Fan Trays, 12V Power Systems.

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Technical Documents

Learning Center

 

TypeDescription
User ManualLTC: Demo Manual for LTC4357 - Single Positive Voltage Ideal Diode - OR
DatasheetLTC: Datasheet for LTC4357 - Positive High Voltage Ideal Diode Controller
Product BriefLTC: Product Brief for Ideal Diode Controllers
Product BriefLTC: Product Brief for High Voltage Ideal Diode-OR Controller Provides Higher Efficiency & Smooth Voltage Switchover without Oscillation
Product BriefLTC: Product Brief for Wide Operating Range Ideal Diode Controller Provides Negative Input Protection & Low Current Operation
WhitepaperLTC: White Paper for 9V to 80V Ideal Diode Reduces Heat Dissipation by Order of Magnitude over Schottky

 

Design Elements

 

TypeDescription
SchematicsLTC: Schematic File for DC1203A
LayoutLTC: Layout File for DC1203A
BOMLTC: BOM File for DC1203A

 

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Kit Features

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Features of DC1203ADC1203A Demo Board:

  • Stuffed for 48V, 5A Applicaions
  • Operates 9-75V Without Modification
  • Demo Board Features Two Independent LTC4357LTC4357 Circuits
  • Dual Layout for S-8 or D2Pak MOSFETs
  • 0.093-inch Turret Holes Accomodate 12 AWG Wire
  • Easily Modified for up to 20A

 

Features of LTC4357LTC4357:

  • Reduces Power Dissipation by Replacing a Power Schottky Diode with an N-Channel MOSFET
  • 0.5μs Turn-Off Time Limits Peak Fault Current
  • Wide Operating Voltage Range: 9V to 80V
  • Smooth Switchover without Oscillation
  • No Reverse DC Current
  • Available in 6-Lead (2mm × 3mm) DFN and 8-Lead MSOP Packages

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Kit Contents

 

The DC1203ADC1203A is supplied with below contents:

  • DC1203A Demo Board

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