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UC3844AN-TUDI AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

UC3844AN-TUDI product

UC3844AN-TUDI

MOSFETs - Single

UC3844Current-mode PWMDIP-8Offline converterDC-DC controller50% duty cycle

UC3844AN-TUDI is a DIP-8 current-mode PWM controller for offline and DC-DC power converters. The UC3844 version is limited to a 50% maximum output duty cycle.

Best for

  • Offline switched-mode power supplies
  • DC-DC converters requiring current-mode control
  • Designs using a through-hole DIP-8 controller

Avoid if

  • The application requires duty cycle above 50 %
  • A confirmed RoHS, REACH, lifecycle, or qualification status is mandatory without further supplier evidence

Check before use

  • Confirm VCC reaches the UC3844 startup threshold.
  • Set peak current protection around the current-sense threshold.
  • Verify MOSFET gate-drive loading and PCB grounding layout.

Key specifications

Controller architecture
Fixed-frequency current-mode PWM
Package
DIP-8
Maximum duty cycle
50 %
UVLO thresholds
16 V on typical; 10 V off typical
Reference output
5.0 V typical

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Offline power convertersDC-DC converter controlIndustrial switched-mode supplies

Datasheet

5c902c91a9be4b8c870b7091b7e71859_UC3844AN-TUDI.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for UC3844AN-TUDI: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

UC3844AN-TUDI is a fixed-frequency current-mode PWM controller in a DIP-8 package. It includes an error amplifier, oscillator, current-sense comparator, 5 V reference, UVLO, and a totem-pole MOSFET gate-drive output.