DC1676A: 20A OR'ing or Dual Diode, 4.5 ~ 60V in

Summary

Demonstration Circuit 1676A showcases the LTC®4359 ideal diode controller with reverse input protection. The board includes two independent LTC4359 ideal diode circuits, sharing a common ground and operating over a 4.5V to 60V range. Each circuit comprises a load switch and ideal diode connected in series. Power to the load may be turned on and off by using the SHDN input, and the load is protected against reverse inputs of up to –40VDC by the ideal diode.

In addition, input dropouts are blocked from the output, permitting capacitors or a battery to hold up the load when input power fails.

Each channel is capable of carrying 20A. Through-hole pads are included to permit modification for even higher currents, using an off-board power stage.

Specifications

Manufacturer	Analog Devices Inc.
Category	Power Management
Sub-Category	OR-ing Controllers
Eval Board Part Number	505-DC1676A-ND
Eval Board Supplier	Analog Devices Inc.
Eval Board	Normally In Stock
Current Out	20 A (x2)
Voltage Out	28 V TYP
Supply Voltage	4.5 ~ 60 V
Features	Reverse Polarity Protection Short Circuit Protection Shutdown, Enable, Standby
Quiescent Current [Typical]	150 µA
Component Count + Extras	30 + 34
Application / Target Market	Automotive Battery Chargers Power: Auxiliary Power Supply Servers Solar Powered Back-up Telecom UPS
Design Author	Linear Technology
Quiescent Current [Maximum]	200 µA
Main I.C. Base Part	LTC4359
Date Created By Author	2013-03
Date Added To Library	2014-01