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UC3845BN AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

UC3845BN product

UC3845BN

DC DC Switching Controllers

PWM ControllerCurrent ModePower Management

The UC3845BN is an obsolete current-mode PWM controller for boost and flyback power supplies.

Best for

  • Legacy power supply repair
  • Flyback converter designs

Avoid if

  • New designs requiring RoHS compliance
  • High-volume production

Check before use

  • Stock availability
  • Compliance requirements

Key specifications

Max Duty Cycle
50%
Switching Frequency
500 kHz
Output Current
1 A

Compliance & Environment

RoHS
RoHS non-compliant
REACH
REACH Unaffected
MSL
1 (Unlimited)
ECCN
EAR99
HTSUS
8542.31.0001

Application

Power Management

Datasheet

ON-Semiconductor-company-79.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for UC3845BN: 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
Verified KiCad 8 symbol, footprint, and 3D model
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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 designed for fixed-frequency DC-DC and off-line power supply control.