UC3843 Datasheet Current-mode Pwm Controllers

Manufacturer: Texas Instruments

Overview: UC1842, UC2842, UC3842, UC1843, UC2843, UC3843 UC1844, UC2844, UC3844, UC1845, UC2845, UC3845 SLUS223H – APRIL 1997 – REVISED OCTOBER 2024 UCx84x Current-Mode PWM Controllers.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number	UC3843
Manufacturer	Texas Instruments
File Size	3.96 MB
Description	Current-Mode PWM Controllers
Datasheet	UC3843 UC3842 Datasheet (PDF)

General Description

The UCx84x series of control integrated circuits provide the

Key Features

Optimized for off-line and DC-to-DC converters.
Low start-up current (< 1mA).
Automatic feedforward compensation.
Pulse-by-pulse current limiting.
Enhanced load-response characteristics.
Undervoltage lockout with hysteresis.
Double-pulse suppression.
High-current totem-pole output.
Internally trimmed bandgap reference.
Up to 500kHz operation.
Error amplifier with low output resistance 2 Applicatio.

UC3843 Distributor

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