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Linear Technology DC2180A Demo Manual

Linear Technology DC2180A Demo Manual

Ltc4371 dual negative voltage ideal diode-or controller

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Description
Demonstration circuit 2180A showcases the
dual negative voltage ideal diode-OR controller and moni-
tor, in a −48V, 50A application. Each channel includes two
paralleled 2mΩ (Max) MOSFETs for a total dissipation of
just 2.5W at full load. Power connections are made by
way of ¼" ring terminals with a cable capacity of 4 AWG.
performance summary
Operating Limits
Operating Voltage Range
Input A or B to RTN Voltage
Input A to Input B Voltage
Maximum DC Load Current
Peak Load Current, 100ms
MOSFET Avalanche Current (I
)
AS
Hardware
Cap Screw Threading
Cap Screw Allen Wrench Size
Hex Nut Socket Size
Ring Terminal
Ring Terminal Capacity
Recommended Cabling
DEMO MANUAL DC2180A
Dual Negative Voltage
Ideal Diode-OR Controller
LTC
4371
Design files for this circuit board are available at
®
http://www.linear.com/demo/DC2180A
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Specifications are at T
= 25°C
A
−32V to −85V
−100V (BV
Limited)
DSS
±100V (BV
Limited)
DSS
50A
100A
150A
¼ - 28
3/16"
7/16"
Panduit S4-14R
4 AWG
Kalas Wire and Cable #4 ToughFlex Heavy Duty Welding Cable
LTC4371
dc2180af
1

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Summary of Contents for Linear Technology DC2180A

  • Page 1 −48V, 50A application. Each channel includes two L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear paralleled 2mΩ (Max) MOSFETs for a total dissipation of Technology Corporation. All other trademarks are the property of their respective owners.
  • Page 2: Quick Start Procedure

    Other crimping methods can result in an inferior, high Current and voltage Limitations resistance and short-lived connection whose power dis- DC2180A is designed to deliver 50A continuous load sipation contributes significantly to board temperature rise. current from any combination of current at the −48VA The importance of properly sized cabling cannot be over- and −48VB inputs.
  • Page 3 Connect two 48V, 50A power supplies repeated assembly and disassembly. and a load as shown in Figure 1. Connect DC2180A’s RTN RTN current does not pass through DC2180A. A single terminal to the load’s RTN through a short hookup wire or point connection to the RTN terminal of the load is all that test lead.
  • Page 4 DEMO MANUAL DC2180A Quick start proceDure 0A TO 50A DC2180A LOAD –48VB –48VOUT –48VA –48V 4 AWG CABLE HOOK UP WIRE OR TEST LEAD DC2180a F01 VA, VB: 32V TO 85V SUPPLIES figure 1. Test Setup dc2180af...
  • Page 5: Schematic Diagram

    Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
  • Page 6 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS iS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for engineering DeveLOpmenT Or evALuATiOn purpOSeS OnLy and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods.
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