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CM3843

Champion
Part Number CM3843
Manufacturer Champion
Description CURRENT MODE PWM CONTROLLER
Published Nov 8, 2017
Detailed Description CM3842/3843 CURRENT MODE PWM CONTROLLER GENERAL DESCRIPTION FEATURES The CM3842/43 are fixed frequency current-mode P...
Datasheet PDF File CM3843 PDF File

CM3843
CM3843

Overview
CM3842/3843 CURRENT MODE PWM CONTROLLER GENERAL DESCRIPTION FEATURES The CM3842/43 are fixed frequency current-mode PWM ! controllers specially designed for OFF-Line switching ! power supply and DC-to-DC converters with a minimum ! number of external components.
These devices feature ! a trimmed oscillator for precise duty cycle control, a ! temperature compensated reference, high gain error ! amplifier, current sensing comparator, and high current ! totem pole output which is suitable for driving ! MOSFETs.
! The under voltage lock-out (U.
V.
L.
O.
) is designed to operated with 200µA typ.
start-up current, allowing an efficient bootstrap supply voltage design.
The U.
V.
L.
O.
thre...


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