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CM3843 - CURRENT MODE PWM CONTROLLER

Download the CM3843 datasheet PDF. This datasheet also covers the CM3842 variant, as both devices belong to the same current mode pwm controller family and are provided as variant models within a single manufacturer datasheet.

Key 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 d.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CM3842-Champion.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number CM3843
Manufacturer Champion
File Size 162.87 KB
Description CURRENT MODE PWM CONTROLLER
Datasheet download datasheet CM3843 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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. thresholds for the CM3842 are 16V (on) and 10V (off) which are ideal for off-line applications.