UC3846L-D08-T datasheet(8/10 Pages) UTC

Part #	UC3846L-D08-T

Description	LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS

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Manufacturer	UTC [Unisonic Technologies]

Direct Link	http://www.utc-ic.com

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8 / 10 page

UC3846

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

8 of 10

www.unisonic.com.tw

QW-R103-053.B

REFRENCE CIRCUIT

SENSE

VDD

GATE

GND

FB

RI

U1

8

7

5

1

2

4

R7

R9

R8

R6

Q1

1

3

22

C6

3

C1

+

C2

R2

R1

C3

R5

R3

R4

D1

10

9

8

5

7

T1

D4

R10 C7

C8

+

1, 2

3, 4

21

1

2

1

2

D5

+

C9

L2

VO

GND

R13

R14

C10

R12

U3

3

1

2

R11

2

1

3

4

U2

D2

2

1

C4

+

BD1

2

1

4

12

L1

CX1

F1

L

N

CY1

6

3

NC

Reference

Component

Reference

Component

BD1

BD 1A/500V

L2

10μH 6mm

CX1 (Optional)

YC 472P/400V (Y1)

Q1

1N60

CY1 (Optional)

YC 102P/400V (Y1)

R1,R2

R 750KΩ 1206

C2

EC 10μF/400V 105℃

R4,R3

R 47KΩ 1206

C1

CC 103P/500V

R5

R 47Ω 1206

C3

CC 1000P/500V

R6

R 4.7Ω 1206

C4

EC 10u/50V

R7

R 100Ω 0805

C6

CC 472P 0805

R8

R 10Ω 1206

C7 (Optional)

CC 102P/100V 1206

R10 (Optional)

R 10Ω 1206

C8

EC 470u/10V 105℃

R9

R 100KΩ 0805

C9

EC 220u/10V 105℃

R11

R 100Ω 1/8W

C10

CC 222P 0805

R12

R 33KΩ 0805

D1

Diode FRI07

R13

R 33KΩ 1/8W

D2

Diode FR102

R14

R 4.7KΩ 0805

D4

Diode SB360

T1

EE-16

D5 (Optional)

ZD 6.8V 0.5W

U1

IC UC3846

F1

R1Ω/0.5W

U2

PC817

L1

20mH 6*8mm

U3

TL431

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UC3846L-D08-T Datasheet(PDF) 8 Page - Unisonic Technologies

UC3846L-D08-T Datasheet(HTML) 8 Page - Unisonic Technologies

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