UC1843A-EP, UC1842A-EP - Current-Mode PWM Controllers

Texas Instruments

Datasheet Details

Part number	UC1843A-EP, UC1842A-EP
Manufacturer	Texas Instruments ↗
File Size	1.11 MB
Description	Current-Mode PWM Controllers
Datasheet	UC1842A-EP-etcTI.pdf
Note	This datasheet PDF includes multiple part numbers: UC1843A-EP, UC1842A-EP. Please refer to the document for exact specifications by model.

The UC1842A/3A/4A/5A family of control ICs is a pin-for-pin compatible improved version of the UC3842/3/4/5 family.

to control current mode switched mode power supplies, this family has the following improved features. Start up current is guaranteed to be less than 0.5 mA. Oscillator discharge is trimmed to 8.3 mA. During under voltage lockout, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V. The difference between members of this family are shown in the table below. PART NUMBER UC1842A UC1843A UC1844A UC1845A UVLO ON 16 V 8.5 V 16 V 8.5 V UVLO OFF 10 V 7.9 V 10 V 7.9 V MAXIMU.

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Published: Oct 16, 2019 |