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UC3845B - HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

Download the UC3845B datasheet PDF. This datasheet also covers the UC3842B variant, as both devices belong to the same high performance current mode pwm controller family and are provided as variant models within a single manufacturer datasheet.

Description

The UC384xB family of control ICs provides the necessary

Features

  • to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UC3842B_STMicroelectronics.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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UC3845B High Performance Current Mode Controller ON Semiconductor
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UC3845 HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS UTC
UC3845 High Performance Current Mode Controllers ON Semiconductor

Other Datasheets by STMicroelectronics

Part Number Description
UC3845BN HIGH-PERFORMANCE PWM CONTROLLER
UC3845 CURRENTMODE PWM CONTROLLER
UC3845A HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
UC3842 CURRENTMODE PWM CONTROLLER
UC3842A HIGH-PERFORMANCE PWM CONTROLLER

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
UC2842B/3B/4B/5B ® UC3842B/3B/4B/5B HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER . TRIMMED OSCILLATOR FOR PRECISE FREQUENCY CONTROL . OSCILLATOR FREQUENCY GUARANTEED AT 250kHz . CURRENT MODE OPERATION TO 500kHz . AUTOMATIC FEED FORWARD COMPENSA- TION . LATCHING PWM FOR CYCLE-BY-CYCLE CURRENT LIMITING . INTERNALLY TRIMMED REFERENCE WITH UNDERVOLTAGE LOCKOUT . HIGH CURRENT TOTEM POLE OUTPUT . UNDERVOLTAGE LOCKOUT WITH HYSTER- ESIS . LOW START-UP AND OPERATING CURRENT DESCRIPTION The UC384xB family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count.
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