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SG1843 - CURRENT MODE PWM CONTROLLER

General Description

The SG1842/43 family of control IC's provides all lockout, current limiting circuitry and start-up the necessary

Key Features

  • to implement off-line fixed current of less than 1mA. The totem-pole output frequency, current-mode switching power supplies is optimized to drive the gate of a power with a minimum number of external components. MOSFET. The output is low in the off state to Current-mode architecture demonstrates improved provide direct interface to an N channel device. line regulation, improved load regulation, pulse- The SG1842/43 is specified for operation over by-pulse current limiting and inherent protectio.

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SG1842/SG1843 Series TM ® C U R R E N T M O D E P W M C O N T R O L L E R PRODUCTION DATA SHEET DESCRIPTION The SG1842/43 family of control IC's provides all lockout, current limiting circuitry and start-up the necessary features to implement off-line fixed current of less than 1mA. The totem-pole output frequency, current-mode switching power supplies is optimized to drive the gate of a power with a minimum number of external components. MOSFET. The output is low in the off state to Current-mode architecture demonstrates improved provide direct interface to an N channel device.