UC3843BN

STMicroelectronics
UC3843BN
Volume Production
IC REG CTRLR BST/FLYBK 8-MINIDIP - Digikey Switching Controllers 0.5mA Current Mode - Mouser UC3843B Series 30 V 17 mA High Performance Current Mode PWM Controller - DIP-8 - Future Electronics See more descriptions See less descriptions

Case/Package	PDIP
Duty Cycle	100%
Fall Time	50ns
Frequency	250kHz
Height	3.32mm
Lead Free	Lead Free
Length	10.92mm
Max Duty Cycle	100%
Max Frequency	500kHz
Max Input Voltage	30V
Min Input Voltage	8.2V
Max Operating Temperature	150°C
Min Operating Temperature	-40°C
Max Power Dissipation	800mW
Max Supply Current	17mA
Max Supply Voltage	30V
Min Supply Voltage	12V
Mount	Through Hole
Nominal Input Voltage	15V
Number of Channels	1
Number of Outputs	1
Number of Pins	8
Output Current	1A
Output Voltage	5.1V
Package Quantity	50
Packaging	Rail/Tube
Power Dissipation	800mW
Radiation Hardening	No
Reach SVHC Compliant	No
Rise Time	50ns
RoHS Compliant	Yes
Switching Frequency	500kHz
Topology	Boost, Flyback
Weight	0.032805oz
Width	6.6mm

Digikey

Datasheet (pdf, 233.7 KB)

Mouser

Datasheet (pdf, 233.7 KB)

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Verical - UC3843BN

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US: 8,000

Arrow Electronics - UC3843BN

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US: 8,000

Mouser - 511-UC3843BN

$0.84

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US: 3,535

1	$0.84
10	$0.597
100	$0.472
1000	$0.422

Future Electronics - 3067498

$0.37

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CA: 4

1	$0.37
10	$0.37
100	$0.36
1000	$0.35

Future Electronics - 5510573

$0.365

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CA: 0

100	$0.365
1000	$0.345

TME - UC3843BN

$0.836

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14: 1,118

1	$0.836
10	$0.554
100	$0.423
1000	$0.337

Newark - 51AC9705

$0.80

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US: 172

1	$0.80
10	$0.502
100	$0.437
1000	$0.403

Digikey - 497-6786-5-ND

$0.84

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US: 849

1	$0.84
10	$0.597
100	$0.4719
1000	$0.4062

Anglia - UC3843BN

£0.223

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GB: 5,000

100	£0.223
1000	£0.201

Element14 - 2849824

S$1.18

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SG: 172

1	S$1.18
10	S$0.733
100	S$0.638
1000	S$0.582

Farnell - 2849824

£0.647

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GB: 172

1	£0.647
10	£0.406
100	£0.353
1000	£0.326

Associate Distributors

Win Source - UC3843BN

$0.1491

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CN: 69,680

1000

$0.1491

Worldway Electronics - UC3843BN

$0.1202

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HK: 25,770

10	$0.1202
100	$0.1165
1000	$0.1104

FlyWing Technology - UC3843BN

$0.0889

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HK: 2,015

1	$0.0889
10	$0.0863
100	$0.0837
1000	$0.0804

Utmel Electronic - 2381-UC3843BN

$0.2685

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HK: 10,527

1	$0.2685
10	$0.2533
100	$0.239
1000	$0.2127

RX Electronics Limited - UC3843BN

$0.272

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CN: 59,880

10	$0.272
100	$0.217
1000	$0.164

Fmall Co. Limited - UC3843BN

$0.7291

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HK: 30,870

1	$0.7291
10	$0.7291
100	$0.6821
1000	$0.6429

Corohmni - UC3843BN

$18.401

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US: 1,024

1	$18.401
10	$18.401
100	$18.401
1000	$18.401

IBS Electronics - UC3843BN

$0.2381

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US: 570

1000

$0.2381

Epart123 - UC3843BN

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CN: 200,000

LCSC - C5177

¥2.0235

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CN: 1,000

10	¥2.0235
100	¥1.5688
1000	¥1.1302

Cytech Systems - UC3843BN

$1.176

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CN: 140,000

1	$1.176
10	$1.1054
100	$1.0466
1000	$0.9878

Suntronic - UC3843BN

$0.256

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CN: 50,076

10	$0.256
100	$0.205
1000	$0.155

CXDA Electronics - UC3843BN

$0.285

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HK: 39,434

10	$0.285
100	$0.259
1000	$0.234

ZTZ Technology Limited - UC3843BN

$0.336

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CN: 34,499

1	$0.336
10	$0.309
100	$0.282
1000	$0.228

SHENGYU ELECTRONICS - UC3843BN

$0.4144

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CN: 30,012

1	$0.4144
10	$0.4061
100	$0.3937
1000	$0.3813

Chipsmall Limited - UC3843BN

$0.3458

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CN: 20,000

1	$0.3458
10	$0.2305
100	$0.1383
1000	$0.1153

Lixinc - UC3843BN

$0.83

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CN: 14,699

1	$0.83
10	$0.83
100	$0.684
1000	$0.684

Bettlink - UC3843BN

$0.2747

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HK: 8,654

1	$0.2747
10	$0.2497
100	$0.2291
1000	$0.1982

LZChips - UC3843BN

$0.784

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CN: 4,680

1	$0.784
10	$0.708
100	$0.672
1000	$0.639

Semicontronic - UC3843BN

$18.401

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US: 1,228

1	$18.401
10	$18.401
100	$18.401
1000	$18.401

JRH Electronics - UC3843BN

$0.4636

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US: 570

1000

$0.4636

J3 - UC3843BN

$8.232

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US: 450

1	$8.232
10	$8.232
100	$8.232
1000	$8.232

Vigor Components - UC3843BN

$0.83

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SG: 388

1	$0.83
10	$0.83
100	$0.83
1000	$0.83

Origin Data Global Limited - UC3843BN

$0.13

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CN: 14,551

1000

$0.13

Classic Components - UC3843BN

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US: 8,393

Bison Technologies - UC3843BN-161100

$0.46

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CN: 1,500

100	$0.46
1000	$0.46

Bison Technologies - UC3843BN-112703

$0.26

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CN: 450

100	$0.26
1000	$0.26

Quest - UC3843BN

$0.81

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Stock

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US: 50

1	$0.81
10	$0.675
100	$0.486
1000	$0.486

Freelance Electronics - UC3843BN

$0.17

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US: 50

1	$0.17
10	$0.17
100	$0.17
1000	$0.17

Jak Electronics - UC3843BN

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HK: 8,839

Decca Corp - UC3843BN

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PL: 1,000

XingHuan International - UC3843BN

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CN: 21,622

ComSIT Distribution GmbH - UC3843BN

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DE: 400

Robosynatics - UC3843BN

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US: 200

Sourceability - UC3843BN

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US: 200,000

Eastek - UC3843BN_H

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TW: 9,000

Eastek - UC3843BN_G

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TW: 5,900

Chip One Stop - UC3843BN

¥3.2092

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JP: 65

1000

¥3.2092

Conrad - 1185662

€0.76

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DE: In stock

1	€0.76
10	€0.76
100	€0.76
1000	€0.76

Abacus Technologies - UC3843BN

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US: 0

Schukat - UC3843N

€0.2464

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DE: 2,575

100	€0.2464
1000	€0.2191

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