LND3844B 데이터 시트보기 (PDF) - Linear Dimensions Semiconductor

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LND3844B

Current Mode PWM Controller

Linear Dimensions Semiconductor 

LND3842/43/44/45

VREF

RT

RT / CT

8

R

R

4

BIAS

OSC

EXTERNAL

SYNC INPUT CT

.01µF

47 2

+

ERROR

AMP

-

1

+

1mA

2R

R

5

Figure 7. External Clock Synchronization

8

R

R

BIAS

5Vref

+

-

4

OSC

+

1mA

+

ERROR

1M

2

AMP

-

2R

+

S

R

R

1

-

C

5

Figure 8. Soft-Start Circuit

• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com •

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