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UC3845

Part Number	UC3845
Manufacturer	ST Microelectronics
Description	(UC3842 - UC3845) CURRENTMODE PWM CONTROLLER
Published	Aug 26, 2005
Detailed Description	® UC2842/3/4/5 UC3842/3/4/5 CURRENT MODE PWM CONTROLLER . . . . . . . . . . . OPTIMIZED FOR OFF-LINE AND DC TO DC CON...
Datasheet	UC3845 PDF File

Overview

® UC2842/3/4/5 UC3842/3/4/5 CURRENT MODE PWM CONTROLLER .
OPTIMIZED FOR OFF-LINE AND DC TO DC CONVERTERS LOW START-UP CURRENT (< 1 mA) AUTOMATIC FEED FORWARD COMPENSATION PULSE-BY-PULSE CURRENT LIMITING ENHANCED LOAD RESPONSE CHARACTERISTICS UNDER-VOLTAGE LOCKOUT WITH HYSTERESIS DOUBLE PULSE SUPPRESSION HIGH CURRENT TOTEM POLE OUTPUT INTERNALLY TRIMMED BANDGAP REFERENCE 500 KHz OPERATION LOW RO ERROR AMP Minidip SO14 DESCRIPTION TheUC3842/3/4/5family of controlICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal externalparts count.
Internallyimplementedcircuits include undervoltagelockout f...

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