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UC3843 - High Performance Current Mode Controller

Download the UC3843 datasheet PDF. This datasheet also covers the UC3842 variant, as both devices belong to the same high performance current mode controller family and are provided as variant models within a single manufacturer datasheet.

Description

The UC3842B/43B 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.

Features

  • consisting of input and reference under voltage lockouts each with hysteresis, cycle-by-cycle current limiting, programmable output dead time, and a latch for single pulse metering. These devices are available in 8-pin dual-in-line ceramic and plastic packages as well as the 8-pin plastic surface mount (SO-8). And 14-pin plastic surface mount (SO-14). SO-14 package Figure Teng.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UC3842-HOTCHIP.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UC3843
Manufacturer HOTCHIP
File Size 687.35 KB
Description High Performance Current Mode Controller
Datasheet download datasheet UC3843 Datasheet

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Other Datasheets by HOTCHIP

Part Number Description
UC3843B High Performance Current Mode Controller
UC3842 High Performance Current Mode Controller
UC3842B High Performance Current Mode Controller

Full PDF Text Transcription

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HOTCHIP UC3842/43(B) High Performance Current Mode Controller Description The UC3842B/43B 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.
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