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UC3843BD1 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

UC3843BD1 product

UC3843BD1

DC DC Switching Controllers

PWM ControllerPower ManagementObsolete

The UC3843BD1 is an obsolete current-mode PWM controller for DC-DC and off-line power supplies.

Best for

  • Legacy power supply designs
  • Flyback converter topologies

Avoid if

  • New designs requiring long-term availability
  • High-efficiency modern power requirements

Check before use

  • Current stock availability
  • Lifecycle status

Key specifications

Max Frequency
500 kHz
Max Duty Cycle
96%
Supply Voltage
7.6V - 30V

Compliance & Environment

RoHS
RoHS non-compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power SupplyDC-DC Converter

Datasheet

ON-Semiconductor-company-79.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for UC3843BD1: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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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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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

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

Design and risk insights

Questions & answers

It is a high-performance current-mode PWM controller IC used for implementing fixed-frequency off-line or DC-DC power supply control schemes.