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UC3845B - Controllers

Download the UC3845B datasheet PDF. This datasheet also covers the UC3842B variant, as both devices belong to the same controllers family and are provided as variant models within a single manufacturer datasheet.

General Description

The UC3842B/3B/4B/5B, series are high performance fixed frequency current mode controllers.

Line and dc to dc converter applications offering the designer a cost effective solution wi

Key Features

  • consisting of input and reference undervoltage lockouts each with hysteresis, cycle.
  • by.
  • cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8.
  • pin dual.
  • in.
  • line and surface mount (SO.
  • 8) plastic package as well as the 14.
  • pin plastic surface mount (SO.
  • 14). The SO.
  • 14 package has separate power and ground pins for the totem pole output stage. The UCX842B has.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UC3842B-AmericanFirstSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UC3845B
Manufacturer American First Semiconductor
File Size 1.23 MB
Description Controllers
Datasheet download datasheet UC3845B Datasheet

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Other Datasheets by American First Semiconductor

Part Number Description
UC3842B Controllers
UC3843B Controllers
UC3844B Controllers

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
High Performance Current Mode Controllers General Description UC3842B/3B/4B/5B,UC2842B/3B Package outline The UC3842B/3B/4B/5B, series are high performance fixed frequency current mode controllers. They are specifically designed for Off–Line and dc–to–dc converter applications offering the designer a cost–effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.