SG1843(2000) 查看數據表（PDF） - Microsemi Corporation

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SG1843
(Rev.:2000)

CURRENT MODE PWM CONTROLLER

Microsemi Corporation 

PRODUCT DATABOOK 1996/1997

SG1842/SG1843 Series

CURRENT-MODE PWM CONTROLLER

PRODUCTION DATA SHEET

VCC*

GROUND**

RT/CT

BLOCK DIAGRAM

34V

16V (1842)

8.4V (1843)

2.5V

UVLO

S/R

5V

REF

6V (1842)

0.8V (1843)

OSCILLATOR

VREF

GOOD LOGIC

INTERNAL

BIAS

VFB

COMP

CURRENT SENSE

ERROR AMP

S

2R

1V

R

R PWM

LATCH

CURRENT SENSE

COMPARATOR

* - VCC and VC are internally connected for 8 pin packages.

** - POWER GROUND and GROUND are internally connected for 8 pin packages.

VREF

5.0V

50mA

VC*

OUTPUT

POWER GROUND**

Copyright © 2000

Rev. 1.6 4/00

5

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