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Analog Devices LT3753 | Demoboard DC2306A

Active Clamp Synchronous Forward Controller

Overview

TopologyForward Converter
Input voltage10-54 V
Switching frequency100-500 kHz
Output 155 V / 1.5 A
IC revisionA - DC2306A

Description

Demonstration circuit 2306A is an active clamp forwardconverter featuring the LT®3753.This circuit was designed to demonstrate the high level ofperformance and efficiency that can be attained with theLT3753. It operates at 100kHz and produces a regulated54V, 1.5A output from a wide input voltage range of 10Vto 54V, making it suitable for telecom, industrial, and otherapplications. The output voltage of this circuit is jumperselectable between 54V and 48V.The DC2306 circuit features soft-start which preventsoutput voltage overshoot during startup or when recoveringfrom overload condition.

Features

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITSVIN Input Supply Range 10 54 VVOUT Output Voltage 53 54 55 VIOUT Maximum Output Current, Continuous 1.5 AfSW Switching (Clock) Frequency 100 kHzVOUT P-P Output Ripple VIN = 12V, IOUT = 1.5A (20MHz BW) 40 mVP–PIREG Output Regulation Line and Load (10VIN to 54VIN, 0A to 1.5AOUT) ±0.1 %POUT/PIN Efficiency (See Figure 2) VIN =12V, IOUT = 1.5A 93 %

Typical applications

  • 48V Telecommunication Isolated Power Supplies
  • Industrial, Automotive and Military Systems