SG28424N Просмотр технического описания (PDF) - Microsemi Corporation

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SG28424N

CURRENT MODE PWM CONTROLLER

Microsemi Corporation 

PRODUCT DATABOOK 1996/1997

SG1844/SG1845 Series

CURRENT-MODE PWM CONTROLLER

PRODUCTION DATA SHEET

VCC*

GROUND**

34V

16V (1844)

8.4 (1845)

2.5V

BLOCK DIAGRAM

UVLO

S/R

5V

REF

6V (1844)

0.8V (1845)

INTERNAL

BIAS

RT/CT

VFB

COMP

CURRENT SENSE

OSCILLATOR

ERROR AMP

VREF

GOOD LOGIC

T

S

2R

R

1V

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. 1.6c

5

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