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UC3845N-TUDI AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

UC3845N-TUDI product

UC3845N-TUDI

MOSFETs - Single

current-mode PWMDIP-8offline converterDC-DC converter50% duty cycle

UC3845N-TUDI is a DIP-8 current-mode PWM controller intended for offline and DC-DC power converters, with 8.4 V / 7.6 V UVLO thresholds and a 50% duty-cycle limit.

Best for

  • Offline switch-mode power supplies
  • DC-DC converters using current-mode control

Avoid if

  • A duty cycle above 50% is required
  • Verified compliance or lifecycle documentation is mandatory

Check before use

  • Confirm UVLO thresholds against the available control-bias supply
  • Set the current-sense resistor and filter for the required peak-current limit
  • Verify oscillator RT/CT selection and output loading

Key specifications

Package
DIP-8
UVLO start threshold
8.4 V typ
UVLO turn-off threshold
7.6 V typ
Maximum duty cycle
50% max
Reference output
5.0 V typ
Oscillation frequency
52 kHz typ

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Offline power suppliesDC-DC converters

Datasheet

fe5eaae881b1bd14ff9096b13ba61684_UC3845N-TUDI.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for UC3845N-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

UC3845N-TUDI is a fixed-frequency, current-mode PWM controller in a DIP-8 package. It includes an error amplifier, oscillator, current-sense comparator, UVLO protection, 5 V reference, and totem-pole output.