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Linear Technology LTC4371 Demo Manual

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
Hardware
Cap Screw Threading
Cap Screw Allen Wrench Size
Hex Nut Socket Size
Ring Terminal
Ring Terminal Capacity
Recommended Cabling
Arrow.com.
Downloaded from
LTC
Specifications are at T
−32V to −85V
−100V (BV
±100V (BV
50A
100A
)
150A
AS
¼ - 28
3/16"
7/16"
Panduit S4-14R
4 AWG
Kalas Wire and Cable #4 ToughFlex Heavy Duty Welding Cable
DEMO MANUAL DC2180A
Dual Negative Voltage
Ideal Diode-OR Controller
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.
= 25°C
A
Limited)
DSS
Limited)
DSS
LTC4371
dc2180af
1

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Summary of Contents for Linear Technology LTC4371

  • 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

    See the MOSFET data sheet for During HigH vOLTAge TeSTing. further information. DC2180A showcases the LTC4371 dual negative voltage The input voltage is limited by the BV rating of the ideal diode-OR controller and monitor in a −48V, 50A MOSFETs to 100V.
  • Page 3 RTN terminal of the load is all that test lead. Apply power and adjust the load for 50A. is necessary to deliver bias (<5mA) to the LTC4371 and The load current will smoothly transition from one supply FAULTB LED.
  • 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 Arrow.com. Arrow.com. Arrow.com. Arrow.com.

  • 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.