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UC3843BN

Onsemi

UC3843BN by Onsemi

UC3843BN by Onsemi is a current-mode switching controller with max output current of 1A and max switching frequency of 500kHz. Ideal for applications requiring pulse width modulation control, it operates b/w 0-70°C temp range in commercial grade setups.

Median Price

$0.710

Lifecycle Status

Suppliers In-Stock

49

In-Stock Inventory

1k+

Distributors (Authorized)

Supplier In-Stock 1+ parts 100+ parts 1k+ parts 10k+ parts

Farnell

UK . 251 parts In-Stock

1+ parts

$0.710

100+ parts

$0.407

1k+ parts

$0.336

10k+ parts

$0.317

251

$0.710

$0.407

$0.336

$0.317

Mouser Electronics

USA . 2,749 parts In-Stock

1+ parts

$0.830

100+ parts

$0.470

1k+ parts

$0.404

10k+ parts

$0.360

2,749

$0.830

$0.470

$0.404

$0.360

Newark

USA . 210 parts In-Stock

1+ parts

$0.855

100+ parts

$0.483

1k+ parts

$0.415

10k+ parts

$0.388

210

$0.855

$0.483

$0.415

$0.388

DigiKey

USA . 1,622 parts In-Stock

1+ parts

$0.860

100+ parts

$0.483

1k+ parts

$0.416

10k+ parts

$0.389

1,622

$0.860

$0.483

$0.416

$0.389

Element14

Singapore . 251 parts In-Stock

1+ parts

$1.170

100+ parts

$0.622

1k+ parts

$0.551

10k+ parts

$0.504

251

$1.170

$0.622

$0.551

$0.504

Adafruit Industries

USA . 600 parts In-Stock

1+ parts

$8.922

100+ parts

$8.476

1k+ parts

$8.476

10k+ parts

-

600

$8.922

$8.476

$8.476

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Arrow

USA . 8,000 parts In-Stock

1+ parts

-

100+ parts

-

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-

10k+ parts

$0.338

8,000

-

-

-

$0.338

Verical

USA . 8,000 parts In-Stock

1+ parts

-

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$0.338

8,000

-

-

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$0.338

Avnet

USA . 7,450 parts In-Stock

1+ parts

-

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7,450

-

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Master Electronics

USA . 570 parts In-Stock

1+ parts

-

100+ parts

$0.710

1k+ parts

$0.530

10k+ parts

$0.444

570

-

$0.710

$0.530

$0.444

EBV Elektronik

Germany . 300 parts In-Stock

1+ parts

-

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-

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300

-

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Distrelec

Netherlands . 48 parts In-Stock

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48

-

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RS (Exports)

UK . 20 parts In-Stock

1+ parts

-

100+ parts

$0.693

1k+ parts

$0.592

10k+ parts

-

20

-

$0.693

$0.592

-

Chip1Stop

Japan . 10 parts In-Stock

1+ parts

-

100+ parts

-

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10

-

-

-

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Future Electronics

Canada . 4 parts In-Stock

1+ parts

-

100+ parts

$0.365

1k+ parts

$0.350

10k+ parts

$0.330

4

-

$0.365

$0.350

$0.330

Distributors (In-Stock)

Supplier In-Stock 1+ parts 100+ parts 1k+ parts 10k+ parts

Ozdisan Elektronik

Türkiye . 568 parts In-Stock

1+ parts

$0.163

100+ parts

-

1k+ parts

-

10k+ parts

-

568

$0.163

-

-

-

Freelance Electronics

USA . 85 parts In-Stock

1+ parts

$0.170

100+ parts

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85

$0.170

-

-

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Digiode

USA . 2,233 parts In-Stock

1+ parts

$0.379

100+ parts

-

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-

10k+ parts

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2,233

$0.379

-

-

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Nova Conductors

Japan . 10 parts In-Stock

1+ parts

$0.459

100+ parts

-

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-

10k+ parts

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10

$0.459

-

-

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TME

Poland . 1,127 parts In-Stock

1+ parts

$0.740

100+ parts

$0.413

1k+ parts

$0.362

10k+ parts

$0.337

1,127

$0.740

$0.413

$0.362

$0.337

Component Electronics Inc.

Canada . 272 parts In-Stock

1+ parts

$0.920

100+ parts

$0.690

1k+ parts

$0.600

10k+ parts

-

272

$0.920

$0.690

$0.600

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Cyclops Electronics Ltd

UK . 200,510 parts In-Stock

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Chip Stock

USA . 82,180 parts In-Stock

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Magnum Semiconductors LLP

India . 45,700 parts In-Stock

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45,700

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IBS Electronics

USA . 18,874 parts In-Stock

1+ parts

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100+ parts

$0.484

1k+ parts

$0.254

10k+ parts

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18,874

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$0.484

$0.254

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Sensible Micro Corp

USA . 6,903 parts In-Stock

1+ parts

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J2 Sourcing AB

Sweden . 6,000 parts In-Stock

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Schukat

Germany . 3,475 parts In-Stock

1+ parts

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100+ parts

$0.291

1k+ parts

$0.248

10k+ parts

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3,475

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$0.291

$0.248

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Digital Electronic Gebert Verwaltungs UG

Germany . 2,200 parts In-Stock

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Vyrian

USA . 1,515 parts In-Stock

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1,515

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ABC Electronics Ltd.

UK . 1,324 parts In-Stock

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Anansix

USA . 1,086 parts In-Stock

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1,086

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Mil-Aero Solutions, Inc.

USA . 1,000 parts In-Stock

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1,000

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MISTER SPROCKETS

USA . 890 parts In-Stock

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890

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Cogito LLC

Ukraine . 863 parts In-Stock

1+ parts

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863

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Rapid Electronics

USA . 570 parts In-Stock

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570

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Holdelec - ElecDif-Pro

France . 446 parts In-Stock

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446

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ComSIT Distribution GmbH

Germany . 400 parts In-Stock

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400

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ComSIT USA

USA . 400 parts In-Stock

1+ parts

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400

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LIBRA Elektronik GmbH

Germany . 197 parts In-Stock

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197

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ACDS - Activité Composants Distribution Service

France . 100 parts In-Stock

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100

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Bisco

USA . 67 parts In-Stock

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67

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LittleDiode

UK . 38 parts In-Stock

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38

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DF Sales Co.

USA . 34 parts In-Stock

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34

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DF Sales Co.

USA . 34 parts In-Stock

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34

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Huijzer Components

Netherlands . 20 parts In-Stock

1+ parts

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20

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Fibra_Brandt Electronic GMBH

Germany . 3 parts In-Stock

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3

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Prism Electronics

USA . 2 parts In-Stock

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2

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Donberg Electronics Ltd

Ireland . 1 parts In-Stock

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1

-

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Distributors (Availability)

Supplier In-Stock 1+ parts 100+ parts 1k+ parts 10k+ parts

Semicontronic

India . 2,508 parts In-Stock

1+ parts

$0.314

100+ parts

$0.306

1k+ parts

$0.305

10k+ parts

-

2,508

$0.314

$0.306

$0.305

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Ampacity Inc.

Singapore . 2,117 parts In-Stock

1+ parts

$0.314

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2,117

$0.314

-

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Corphita

USA . 1,199 parts In-Stock

1+ parts

$0.359

100+ parts

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1,199

$0.359

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Argo Parts USA

USA . 186 parts In-Stock

1+ parts

$0.459

100+ parts

-

1k+ parts

-

10k+ parts

$0.445

186

$0.459

-

-

$0.445

Continental Prestige Electronics

USA . 564 parts In-Stock

1+ parts

$0.686

100+ parts

$0.526

1k+ parts

$0.339

10k+ parts

$0.319

564

$0.686

$0.526

$0.339

$0.319

Vigor

Singapore . 388 parts In-Stock

1+ parts

$0.830

100+ parts

-

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388

$0.830

-

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Aztec Data Supply Inc.

USA . 30,301 parts In-Stock

1+ parts

$5.241

100+ parts

-

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-

10k+ parts

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30,301

$5.241

-

-

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Advanced Electronics

New Zealand . 600 parts In-Stock

1+ parts

$8.922

100+ parts

$8.476

1k+ parts

$8.476

10k+ parts

-

600

$8.922

$8.476

$8.476

-

IDEA Electronic Components Group

UK . 708 parts In-Stock

1+ parts

$14.947

100+ parts

-

1k+ parts

$13.453

10k+ parts

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708

$14.947

-

$13.453

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Corohmni

South Africa . 1,024 parts In-Stock

1+ parts

$18.401

100+ parts

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1,024

$18.401

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MKK Technologies

India . 692 parts In-Stock

1+ parts

$28.107

100+ parts

-

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692

$28.107

-

-

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DigiPath Technology Company

USA . 692 parts In-Stock

1+ parts

$28.107

100+ parts

-

1k+ parts

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692

$28.107

-

-

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Epart123

USA . 200,000 parts In-Stock

1+ parts

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100+ parts

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10k+ parts

$0.195

200,000

-

-

-

$0.195

GreenTree Electronics

Israel . 200,000 parts In-Stock

1+ parts

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200,000

-

-

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Perfect Parts

USA . 59,732 parts In-Stock

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59,732

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Kepictronics

USA . 55,000 parts In-Stock

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55,000

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Infinite Electronics LLP (Excess)

. 21,020 parts In-Stock

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21,020

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Eastek

USA . 8,250 parts In-Stock

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8,250

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TANS Electronics

Latvia . 8,002 parts In-Stock

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8,002

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-

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Authorized Procurement Solutions

USA . 6,700 parts In-Stock

1+ parts

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6,700

-

-

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Formix International (Excess)

India . 6,000 parts In-Stock

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6,000

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Kulean Microsystems

USA . 5,799 parts In-Stock

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5,799

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Lixinc

USA . 4,635 parts In-Stock

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4,635

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SupplyDigital Components

Austria . 3,291 parts In-Stock

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3,291

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A-Z Elektronik GmbH

Germany . 2,940 parts In-Stock

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2,940

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Glotronic Ltd.

UK . 2,800 parts In-Stock

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2,800

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Microchip USA

USA . 2,563 parts In-Stock

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2,563

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Problanco Electronics

Mexico . 1,427 parts In-Stock

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1,427

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iodParts Technologies Inc.

India . 1,168 parts In-Stock

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$0.397

10k+ parts

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1,168

-

-

$0.397

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Parana Technologies

USA . 1,021 parts In-Stock

1+ parts

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100+ parts

$17.872

1k+ parts

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1,021

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$17.872

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Robosynatics

Brazil . 200 parts In-Stock

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200

-

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Lucentia Tech

USA . 200 parts In-Stock

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200

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Speed Components Ltd (Excess)

Israel . 150 parts In-Stock

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150

-

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UHIMA Technologies

Türkiye . 120 parts In-Stock

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120

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Cyclops Electronics Ltd (Excess)

UK . 100 parts In-Stock

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100

-

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Allen Electronics Distributors

USA . 70 parts In-Stock

1+ parts

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100+ parts

$0.652

1k+ parts

-

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70

-

$0.652

-

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Netroflash

USA . 50 parts In-Stock

1+ parts

-

100+ parts

$0.450

1k+ parts

$0.436

10k+ parts

$0.427

50

-

$0.450

$0.436

$0.427

Overview

Enhance your electronic projects with the UC3843BN switching regulator and controller from Onsemi. With a focus on quality and innovation, Onsemi is a trusted manufacturer in the industry. This versatile component is ideal for a wide range of applications, offering efficient power conversion and precise control. Experience the value and benefits of this product, from its reliable performance to its ease of use. Take your designs to the next level with the UC3843BN and see the difference it can make in your projects.

Feature Benefit Bullets

Package Body Material: PLASTIC/EPOXY

The use of plastic/epoxy for the package body material makes the product lightweight and durable, making it ideal for portable or rugged applications.

Control Mode: CURRENT-MODE

Current-mode control provides faster transient response and better noise immunity, ensuring stable and efficient performance in varying load conditions.

Maximum Operating Temperature: 70 °C

With a maximum operating temperature of 70°C, this product can operate reliably in a wide range of environments without overheating.

Maximum Output Current: 1 A

The high maximum output current of 1 A allows the product to power a variety of loads, making it versatile for different applications.

Minimum Input Voltage: 12 V

With a minimum input voltage of 12 V, this product can efficiently regulate lower input voltages, providing stable output voltage for the connected load.

Technical Specifications

Switching Regulators & Controllers UC3843BN attributes and parameters. Explore more Switching Regulators & Controllers devices from Onsemi

Specs

Other IC type:

Control Mode:

CURRENT-MODE

Control Technique:

PULSE WIDTH MODULATION

Maximum Input Voltage:

25 V

Minimum Input Voltage:

12 V

Nominal Input Voltage:

15 V

JESD-30 Code:

R-PDIP-T8

JESD-609 Code:

e0

Length:

9.78 mm

No. of Functions:

1

No. of Terminals:

8

Maximum Operating Temperature:

70 Cel

Minimum Operating Temperature:

0 Cel

Maximum Output Current:

1 A

Package Body Material:

PLASTIC/EPOXY

Package Code:

DIP

Package Equivalence Code:

DIP8,.3

Package Shape:

Package Style (Meter):

IN-LINE

Peak Reflow Temperature (C):

235

Qualification:

Not Qualified

Maximum Seated Height:

4.45 mm

Sub-Category:

Switching Regulator or Controllers

Surface Mount:

NO

Switcher Config:

SINGLE

Maximum Switching Frequency:

500 kHz

Technology:

BIPOLAR

Temperature Grade:

Terminal Finish:

TIN LEAD

Terminal Form:

THROUGH-HOLE

Terminal Pitch:

2.54 mm

Terminal Position:

DUAL

Width (mm):

7.62 mm

Trade Compliance

UC3843BN Other Function Semiconductors trade compliance attributes, and parameters.

ECCN

EAR99

ECCN Governance

EAR

HTS

8542.39.00.01

SB

8542.39.00.00

PCN

Manufacturer Highlights

Onsemi

Established in 1999, Onsemi is a leading global provider of power and image-sensing technologies. They are dedicated to building a better future for the automotive, industrial, cloud, medical, and IoT markets. Onsemi's core technologies include analog, digital, and mixed-signal products that offer innovative solutions for advanced automotive systems; highly reliable power management products for industrial applications; low-cost imaging solutions for medical equipment and consumer electronics; and robust communication architectures for the Internet of Things (IoT).

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Management team

President, CEO

Hassane El-Khoury

Executive VP, CFO, Treasurer

Thad Trent

Senior VP

Ross F. Jatou

Manufacturer fab locations 15

Fab name Location Fab Initiation Wafer Capacity

Aizu Fab

Fabrication

Fab Initiation

1995

Japan

Aizu Wakamatsu

Wafer Capacity

52,000

1995

52,000

Si/EPI Fab

Fabrication

Fab Initiation

2018

Czech Republic

Rožnov pod Radhoštěm

Wafer Capacity

10,000

2018

10,000

Expansion Phase 1 for SiC / EPI

Fabrication

Fab Initiation

2019

Czech Republic

Rožnov pod Radhoštěm

Wafer Capacity

14,500

2019

14,500

Expansion Phase 2 for SiC / EPI

Fabrication

Fab Initiation

2024

Czech Republic

Rožnov pod Radhoštěm

Wafer Capacity

2024

SiC Fab

Fabrication

Fab Initiation

2022

USA

Hudson

Wafer Capacity

2022

Bucheon

Fabrication

Fab Initiation

2013

South Korea

Bucheon

Wafer Capacity

61,000

2013

61,000

ISMF - Malaysia

Fabrication

Fab Initiation

1990

Malaysia

Seremban

Wafer Capacity

95,000

1990

95,000

Roznov Device Fab

Fabrication

Fab Initiation

1987

Czech Republic

Rožnov pod Radhoštěm

Wafer Capacity

80,000

1987

80,000

Fab 10

Fabrication

Fab Initiation

2002

USA

East Fishkill

Wafer Capacity

15,000

2002

15,000

Burlington

Fabrication

Fab Initiation

1986

Canada

Burlington

Wafer Capacity

1986

Gresham

Fabrication

Fab Initiation

1998

USA

Gresham

Wafer Capacity

45,000

1998

45,000

Bucheon 150mm

Fabrication

Fab Initiation

2000

South Korea

Bucheon

Wafer Capacity

50,000

2000

50,000

Rochester

Fabrication

Fab Initiation

1983

USA

Rochester

Wafer Capacity

10,000

1983

10,000

Nampa

Fabrication

Fab Initiation

1995

USA

Nampa

Wafer Capacity

1995

Pennsylvania

Fabrication

Fab Initiation

1997

USA

Mountain Top

Wafer Capacity

36,000

1997

36,000

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