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ACT4533

Active-Semi
Part Number ACT4533
Manufacturer Active-Semi
Description Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
Published Mar 9, 2015
Detailed Description ACT4533 Rev 1, 25-Feb-13 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter FEATURES • 40V Input Voltage Surge • 32V...
Datasheet PDF File ACT4533 PDF File

ACT4533
ACT4533

Overview
ACT4533 Rev 1, 25-Feb-13 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter FEATURES • 40V Input Voltage Surge • 32V Steady State Operation • Up to 3A Output Current • Constant Current Output with Input up to 32V • Output Voltage up to 12V • 125kHz Switching Frequency Eases EMI Design • Good EMI Performance to Pass EN55022 Radiation Regulation without adding EMI Components • Patent Pending Active CC Sensorless Constant Current Control − Integrated Current Control Improves Efficiency, Lowers Cost, and Reduces Component Count • Resistor Programmable − Current Limit from 1.
5A to 3A − Patented Cable Compensation from 0 to 0.
3Ω • ±7.
5% CC Accuracy − Compensation of Input /Output Voltage Change − Temperature Compensation − Independent of inductance and Inductor DCR • 2% Feedback Voltage Accuracy • Up to 92% Efficiency • Advanced Feature Set − Integrated Soft Start − Thermal Shutdown − Secondary Cycle-by-Cycle Current Limit − Protection Against Shorted ISET Pin • SOP-8EP Package APPLICAT...


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