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UC3843D

UC3843D
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For Reference Only

Part Number UC3843D
OEMstron Part # UC3843D_6B
Manufacturer ON Semiconductor
Category SemiconductorsPower Management ICsVoltage Regulators - DC DC Switching Controllers
Description IC REG CTRLR 14SOIC
Lifecycle Obsolete
RoHS No RoHS Information
EDA/CAD Models UC3843D PCB Footprint and Symbol
Warehouses USA, Europe, China, Hong Kong SAR
Estimated Delivery May 2 - May 7 (Choose Expedited Shipping)
Warranty Up to 1 year [Limited-Warranty]*
Payment Wire Transfer, UnionPay, PayPal, Credit Card, Visa, MasterCard, AmericanExpress, Discover, WesternUnion, MoneyGram
Shipping DHL, UPS, FedEx, TNT, EMS, & More Express Delivery

UC3843D Specifications

Part Number UC3843D
Brand ON Semiconductor
Lifecycle Obsolete
RoHS No RoHS Information
Product Line Semiconductors
Category Power Management ICs
Subcategory Voltage Regulators - DC DC Switching Controllers
Manufacturer ON Semiconductor
Series -
Output Type Transistor Driver
Function Step-Up, Step-Up/Step-Down
Output Configuration Positive
Topology Boost, Flyback
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 7.6V ~ 30V
Frequency - Switching Up to 500kHz
Duty Cycle (Max) 97%
Synchronous Rectifier No
Clock Sync No
Serial Interfaces -
Control Features Frequency Control
Operating Temperature 0°C ~ 70°C (TA)
Package / Case 14-SOIC (0.209", 5.30mm Width)
Supplier Device Package 14-SOP

UC3843D Documents

UC3843D, UC3843D Datasheet (Total Pages: 12, Size: 127.58 KB)
UC3845D Datasheet CoverUC3845D Datasheet Page 2UC3845D Datasheet Page 3UC3845D Datasheet Page 4UC3845D Datasheet Page 5UC3845D Datasheet Page 6UC3845D Datasheet Page 7UC3845D Datasheet Page 8UC3845D Datasheet Page 9UC3845D Datasheet Page 10UC3845D Datasheet Page 11UC3845D Datasheet Page 12
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Part Number Description Stock

UC3843DTR

D# V72:2272_07428544

Texas Instruments

Current Mode PWM Controller 200mA 500kHz 14-Pin SOIC T/R

RoHS: Compliant
Americas - 466

UC3843D8TR

D# V72:2272_07428537

Texas Instruments

Current Mode PWM Controller 200mA 500kHz 8-Pin SOIC T/R

RoHS: Compliant
Americas - 0

UC3843D8G4

D# V36:1790_07428535

Texas Instruments

Current Mode PWM Controller 200mA 500kHz 8-Pin SOIC Tube

RoHS: Compliant
Americas - 0

UC3843D

D# V36:1790_07428531

Texas Instruments

Current Mode PWM Controller 200mA 500kHz 14-Pin SOIC Tube

RoHS: Compliant
Americas - 0

UC3843D8

D# V36:1790_07428532

Texas Instruments

Current Mode PWM Controller 200mA 500kHz 8-Pin SOIC Tube

RoHS: Compliant
Americas - 0
Part Number Description Stock

UC3843D

D# UC3843D

Texas Instruments

Current Mode PWM Controller 1A 14-Pin SOIC Tube (Alt: UC3843D)

Europe - 7200
Part Number Description Stock

UC3843DTR

Unitrode Corporation

4995

UC3843D

UNIT

336

UC3843D8

Unitrode Corporation

370
Part Number Description Stock

UC3843DG4

Texas Instruments

PWM CONTROLLER CURRENT MODE, SOIC14, Input Voltage:25V, Output Voltage:13.5V, Output Current:1A, Supply Voltage Min:12V, Supply Voltage Max:25V, Controller IC Case Style:SOIC, No. of Pins:14, Frequency:500kHz, Operating Temperature , RoHS Compliant: Yes

382

UC3843DTR

Texas Instruments

IC REG CTRLR PWM CM 14SOIC

Contact Us

UC3843D8TR

Texas Instruments

CURRENT MODE PWM CONTROLLER, 25V, 8-SOIC, Input Voltage:25V, Output Voltage:13.5V, Output Current:200mA, Supply Voltage Min:12V, Supply Voltage Max:25V, Controller IC Case Style:SOIC, No. of Pins:8, Frequency:450kHz , RoHS Compliant: Yes

Contact Us

UC3843D8G4

Texas Instruments

IC REG CTRLR PWM CM 8SOIC

Contact Us

UC3843D

Fairchild Semiconductor Corporation

N/A 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO14 SOP-14

810

UC3843D8

Texas Instruments

CURRENT MODE PWM CONTROLLER, 25V, 8-SOIC, Input Voltage:25V, Output Voltage:13.5V, Output Current:200mA, Supply Voltage Min:12V, Supply Voltage Max:25V, Controller IC Case Style:SOIC, No. of Pins:8, Frequency:450kHz , RoHS Compliant: Yes

Contact Us

UC3843DX

Fairchild Semiconductor Corporation

N/A 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO14 SOP-14

810

UC3843DTRG4

Texas Instruments

IC REG CTRLR PWM CM 14SOIC

Contact Us

UC3843D8TRG4

Texas Instruments

(T/R) CUR MODE PWM CONT - Tape and Reel

Contact Us
Part Number Description Stock

UC3843D1X

Fairchild Semiconductor Corporation

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, PDSO8

RoHS: Compliant
Europe - 1395
Part Number Description Stock

UC3843DG4

D# UC3843DG4-ND

Texas Instruments

IC REG CTRLR MULT TOP 14SOIC

Temporarily Out of Stock

UC3843DTR

D# 296-46261-1-ND

Texas Instruments

IC REG CTRLR MULT TOP 14SOIC

12 In Stock

UC3843D8TR

D# 296-46260-1-ND

Texas Instruments

IC REG CTRLR MULT TOPOLOGY 8SOIC

4399 In Stock

UC3843D8G4

D# UC3843D8G4-ND

Texas Instruments

IC REG CTRLR MULT TOPOLOGY 8SOIC

Temporarily Out of Stock

UC3843D

D# 2156-UC3843D-FS-ND

Rochester Electronics LLC

SWITCHING CONTROLLER

12903 In Stock

UC3843DR-8

D# 2156-UC3843DR-8-ND

Rochester Electronics LLC

SWITCHING CONTROLLER

22500 In Stock

UC3843D8

D# 296-11287-5-ND

Texas Instruments

IC REG CTRLR MULT TOPOLOGY 8SOIC

681 In Stock

UC3843DX

D# UC3843DX-ND

ON Semiconductor

IC REG CTRLR 14SOIC

Limited Supply - Call

UC3843D8TRG4

D# UC3843D8TRG4-ND

Texas Instruments

IC REG CTRLR MULT TOPOLOGY 8SOIC

Temporarily Out of Stock
Part Number Description Stock

UC3843D

N

In stock shipping within 2days

4662

UC3843D8

Texas Instruments

In stock shipping within 2days

342

UC3843DR

-

In stock shipping within 2days

120

UC3843D013TR

STMicroelectronics

In stock shipping within 2days

5260
Part Number Description Stock

UC3843D

D# 1505584

ON Semiconductor

IC, PWM CONTROLLER

RoHS: Compliant
Min Qty: 4860
Container: Each
0

UC3843D8

D# 3008565

Texas Instruments

PWM CONTROLLER, SMD, 3843, SOIC8

RoHS: Compliant
Min Qty: 1
Container: Each
359
Part Number Description Stock

UC3843D

STMicroelectronics

Stock

320
Part Number Description Stock

UC3843D1X

Fairchild Semiconductor Corporation

OEM/CM QUOTES ONLY | NO BROKERS

1660

UC3843DTR

251

OEM/CM QUOTES ONLY | NO BROKERS

5950

UC3843DR8

Rochester Electronics LLC

OEM/CM QUOTES ONLY | NO BROKERS

26775

UC3843D013

STMicroelectronics

OEM/CM QUOTES ONLY | NO BROKERS

1767

UC3843D8TR

TI Texas Instruments

OEM/CM QUOTES ONLY | NO BROKERS

4605

UC3843D

STMICR

OEM/CM QUOTES ONLY | NO BROKERS

53550

UC3843D8SMD

N/A

OEM/CM QUOTES ONLY | NO BROKERS

2509

UC3843DB

ORIGINAL

OEM/CM QUOTES ONLY | NO BROKERS

45

UC3843D8

Texas Instruments

OEM/CM QUOTES ONLY | NO BROKERS

4033

UC3843DR

Texas Instruments

OEM/CM QUOTES ONLY | NO BROKERS

8925

UC3843DX

FAIR

OEM/CM QUOTES ONLY | NO BROKERS

3570

UC3843DW

UNI

OEM/CM QUOTES ONLY | NO BROKERS

21791

UC3843D013TR1

STMicroelectronics

OEM/CM QUOTES ONLY | NO BROKERS

2975

UC3843D013TR

OEM/CM QUOTES ONLY | NO BROKERS

14875

UC3843D8TRG4

Texas Instruments

OEM/CM QUOTES ONLY | NO BROKERS

5950
Part Number Description Stock

UC3843DG4

Texas Instruments

OEM/CM ONLY

1081

UC3843D8C

Texas Instruments

OEM/CM ONLY

391

UC3843D14

Texas Instruments

OEM/CM ONLY

110

UC3843DRSOIC14

Texas Instruments

OEM/CM ONLY

656

UC3843D1R2G

Texas Instruments

OEM/CM ONLY

4600

UC3843D8G4

Texas Instruments

OEM/CM ONLY

242

UC3843D8PR

Texas Instruments

OEM/CM ONLY

871

UC3843D8TRG

Texas Instruments

OEM/CM ONLY

910

UC3843DFAIR

Texas Instruments

OEM/CM ONLY

1774

UC3843DB

Texas Instruments

OEM/CM ONLY

598

UC3843DTRG4

Texas Instruments

OEM/CM ONLY

230

UC3843DSOP14

Texas Instruments

OEM/CM ONLY

1100

UC3843D8SOIC8

Texas Instruments

OEM/CM ONLY

849

UC3843D8TRG4

Texas Instruments

OEM/CM ONLY

902

TIUC3843D8

Texas Instruments

OEM/CM ONLY

6022
Part Number Description Stock

UC3843DTR

Texas Instruments

Boost, Buck, Buck-Boost, Flyback, Forward Regulator Positive, Isolation Capable Output Step-Up, Step-Down, Step-Up/Step-Down - DC-DC Controller IC 14-SOIC

RoHS: Compliant
2795
Part Number Description Stock

UC3843D

Unitrode Corporation

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14

20
Part Number Description Stock

UC3843DTR

Texas Instruments

OEM/CM Immediate delivery

2795

UC3843D8TR

Texas Instruments

OEM/CM Immediate delivery

1667

UC3843D

Fairchild Semiconductor Corporation

OEM/CM Immediate delivery

36530

UC3843DB

UC

OEM/CM Immediate delivery

855

UC3843D8

Texas Instruments

OEM/CM Immediate delivery

180

UC3843DX

Fairchild Semiconductor Corporation

OEM/CM Immediate delivery

36530

UC3843D013TR

STMicroelectronics

OEM/CM Immediate delivery

30000
Part Number Description Stock

UC3843DG4

D# 595-UC3843DG4

Texas Instruments

Switching Controllers Current-Mode PWM Controller

RoHS: Compliant
372

UC3843DTR

D# 595-UC3843DTR

Texas Instruments

Switching Controllers Current-Mode PWM Controller

RoHS: Compliant
771

UC3843D8TR

D# 595-UC3843D8TR

Texas Instruments

Switching Controllers Current-Mode PWM Controller

RoHS: Compliant
4009

UC3843D8G4

D# 595-UC3843D8G4

Texas Instruments

Switching Controllers Current-Mode PWM Controller

RoHS: Compliant
600

UC3843D

D# 595-UC3843D

Texas Instruments

Switching Controllers Current Mode

RoHS: Compliant
854

UC3843D8

D# 595-UC3843D8

Texas Instruments

Switching Controllers Current Mode

RoHS: Compliant
651

UC3843D8TRG4

D# 595-UC3843D8TRG4

Texas Instruments

Switching Controllers Current-Mode PWM Controller

RoHS: Compliant
144
Part Number Description Stock

UC3843D8 .

D# 20M7804

Texas Instruments

PWM CONTROLLER, SMD, 3843, SOIC8, Input Voltage:15V, Output Voltage:5V, Output Current:1A, Supply Voltage Min:12V, Supply Voltage Max:25V, Controller IC Case Style:SOIC, No. of Pins:8Pins, Frequency:450kHz, Operating Temperature RoHS Compliant: Yes

RoHS: Compliant
Min Qty: 1
Container: Bulk
4

UC3843D8

D# 29AH8389

Texas Instruments

PWM CONTROLLER, SMD, 3843, SOIC8, Input Voltage:15V, Output Voltage:5V, Output Current:1A, Supply Voltage Min:12V, Supply Voltage Max:25V, Controller IC Case Style:SOIC, No. of Pins:8Pins, Frequency:450kHz, Operating Temperature RoHS Compliant: Yes

RoHS: Compliant
Min Qty: 1
Container: Bulk
359
Part Number Description Stock

UC3843DG4

D# NS-UC3843DG4

Texas Instruments

OEM/CM ONLY

5539

UC3843DTR

D# NS-UC3843DTR

Texas Instruments

OEM/CM ONLY

3675

UC3843D8TR

D# NS-UC3843D8TR

Texas Instruments

OEM/CM ONLY

7416

UC3843D8G4

D# NS-UC3843D8G4

Texas Instruments

OEM/CM ONLY

6232

UC3843D

D# NS-UC3843D

Texas Instruments

OEM/CM ONLY

1636

UC3843D8

D# NS-UC3843D8

Texas Instruments

OEM/CM ONLY

1874

UC3843D1

D# NS-UC3843D1

VARIOUS

OEM/CM ONLY

7370

UC3843DX

D# NS-UC3843DX

Fairchild Semiconductor Corporation

OEM/CM ONLY

4322

UC3843DTRG4

D# NS-UC3843DTRG4

Texas Instruments

OEM/CM ONLY

2712

UC3843D8TRG4

D# NS-UC3843D8TRG4

Texas Instruments

OEM/CM ONLY

4138
Part Number Description Stock

UC3843DTR

Unitrode Corporation

1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO14

3996

UC3843D8TR

Unitrode Corporation

429

UC3843D

Unitrode Corporation

Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 14 Pin, Plastic, SOP

10

UC3843D8

Texas Instruments

Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 8 Pin, Plastic, SOP

46

UC3843DR

Texas Instruments

Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 14 Pin, Plastic, SOP

551
Part Number Description Stock

UC3843D

D# UC3843D

Texas Instruments

Semiconductor

197
Part Number Description Stock

UC3843D8

D# 6615336P

Texas Instruments

Texas Instruments UC3843D8, PWM Current Mode Controller, 1 A, 500 kHz, 8-Pin SOIC, TU

Min Qty: 5
Container: Tube
15
Part Number Description Stock

UC3843DTR

Texas Instruments

UC3843 Current-Mode PWM Controller

RoHS: Compliant
10982

UC3843D8TR

Texas Instruments

UC3843 Current-Mode PWM Controller

RoHS: Compliant
24208

UC3843D8G4

Texas Instruments

UC3843 Current-Mode PWM Controller

RoHS: Compliant
40

UC3843D

Texas Instruments

UC3843 Current-Mode PWM Controller

RoHS: Compliant
12903

UC3843DR-8

Texas Instruments

UC3843 Current-Mode PWM Controller

RoHS: Compliant
22500

UC3843D8

Texas Instruments

UC3843 Current-Mode PWM Controller

RoHS: Compliant
18159
Part Number Description Stock

UC3843D1X

Fairchild Semiconductor Corporation

OEM/CM ONLY

1411

UC3843DTR

Texas Instruments

OEM/CM ONLY

10011

UC3843D013

STMicroelectronics

OEM/CM ONLY

1501

UC3843D8TR

Texas Instruments

OEM/CM ONLY

3886

UC3843D

Fairchild Semiconductor Corporation

OEM/CM ONLY

69422

UC3843D8SMD

OEM/CM ONLY

2124

UC3843DB

ORIGINAL

OEM/CM ONLY

54

UC3843D8

Texas Instruments

OEM/CM ONLY

3099

UC3843D1

Fairchild Semiconductor Corporation

OEM/CM ONLY

115

UC3843DR

Texas Instruments

OEM/CM ONLY

8205

UC3843DX

Fairchild Semiconductor Corporation

OEM/CM ONLY

3016

UC3843DW

Texas Instruments

OEM/CM ONLY

18328

UC3843D013TR

SGS Semiconductor Ltd

OEM/CM ONLY

12516

UC3843D8TRG4

Texas Instruments

OEM/CM ONLY

5011
Part Number Description Stock

UC3843DTR

Texas Instruments

IN stock Immediate delivery

2810

UC3843D8TR

Texas Instruments

IN stock Immediate delivery

1682

UC3843D

Fairchild Semiconductor Corporation

IN stock Immediate delivery

36515

UC3843DB

UC

IN stock Immediate delivery

850

UC3843D8

Texas Instruments

IN stock Immediate delivery

175

UC3843DX

Fairchild Semiconductor Corporation

IN stock Immediate delivery

36515

UC3843D013TR

STMicroelectronics

IN stock Immediate delivery

29985
Part Number Description Stock

UC3843DTR

Texas Instruments

Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, 0C to 70C

1,469

UC3843D8TR

Texas Instruments

Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, 0C to 70C

106,291

UC3843D

Texas Instruments

Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, 0C to 70C

7,480

UC3843D8

Texas Instruments

Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, 0C to 70C

9,165
Part Number Description Stock

UC3843D8TR

Texas Instruments

shipping today

12496

UC3843D

UC

shipping today

1456

UC3843D8

Texas Instruments

shipping today

6109

UC3843DR

Texas Instruments

shipping today

2349

UC3843D013TR

UC

shipping today

558
Part Number Description Stock

UC3843DTR

D# 36439000

Texas Instruments

Current Mode PWM Controller 200mA 500kHz 14-Pin SOIC T/R

RoHS: Compliant
Americas - 466
Part Number Description Stock

UC3843DG4

Texas Instruments

RFQ

1774

UC3843D-8

Texas Instruments

RFQ

4824

UC3843D8TR

Texas Instruments

RFQ

8024

UC3843D8G4

Texas Instruments

RFQ

3723

UC3843D

Texas Instruments

RFQ

13181

UC3843D8 TI

Texas Instruments

RFQ

9365

UC3843DB

UC

RFQ

3585

UC3843D8

Texas Instruments

RFQ

223

UC3843D1

Fairchild Semiconductor Corporation

RFQ

7009

UC3843D013TR-1

STMicroelectronics

RFQ

7520
Part Number Description Stock

UC3843D8TR

Texas Instruments

IC REG CTRLR MULT TOPOLOGY 8SOIC

14282

UC3843D

Texas Instruments

IC REG CTRLR MULT TOP 14SOIC

4600

UC3843D8

Texas Instruments

IC REG CTRLR MULT TOPOLOGY 8SOIC

870
Part Number Description Stock

UC3843D8

D# 3008565

Texas Instruments

PWM CONTROLLER, SMD, 3843, SOIC8

RoHS: Compliant
Min Qty: 1
Container: Each
359

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In Stock191 - More on Order
Quote LimitNo Limit
Lead-TimeCan Ship Immediately
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Pricing (USD)

Qty.Unit PriceExt. Price
1$ 1.4803$ 1.4803
100$ 1.4803$ 148.0300
500$ 1.4803$ 740.1500
1000$ 1.4803$ 1,480.3000
2500$ 1.4803$ 3,700.7500

OEMstron will offer the most competitive prices for you, please refer to the quotations.

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