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UC3843BVD1R2G-TUDI AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

UC3843BVD1R2G-TUDI product

UC3843BVD1R2G-TUDI

MOSFETs - Single

current-mode PWMPWM controllerSOP-8offline converterDC-DC converterUC3843B

UC3843BVD1R2G-TUDI is an SOP-8 current-mode PWM controller for offline and DC-DC power converters, with low-voltage UVLO thresholds and a 50% maximum duty-cycle family specification.

Best for

  • Offline switch-mode power supplies
  • DC-DC converter control
  • Current-mode MOSFET switching stages

Avoid if

  • A duty cycle above the specified 50% family limit is required
  • Compliance or lifecycle status must be confirmed before release

Check before use

  • Verify exact suffix, package and temperature grade
  • Set peak current from the current-sense network
  • Validate loop compensation and slope compensation where required

Key specifications

Package
SOP-8
UVLO start threshold
8.4 V typical
UVLO turn-off threshold
7.6 V typical
Reference output
5.0 V typical
Maximum duty cycle
50%
Current-sense limit
1.0 V typical

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Offline power convertersDC-DC convertersSwitch-mode power supplies

Datasheet

9d2a2ffbd0364d4714f58db2db529841_UC3843BVD1R2G-TUDI.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for UC3843BVD1R2G-TUDI: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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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
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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

It is a TD SOP-8 fixed-frequency current-mode PWM controller. It integrates an oscillator, error amplifier, current-sense comparator, 5 V reference, undervoltage lockout, and totem-pole output for MOSFET gate drive.