AMC384XBD 데이터 시트보기 (PDF) - Unspecified

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AMC384XBD

CURRENT MODE PWM CONTROLLER

Unspecified 

AMC DOC. #: AMC3842B_C (LF)

March 2004

AMC3842B/43B

CURRENT MODE PWM CONTROLLER

BLOCK DIAGRAM

Internal

Bias

U.V.L.O.

36V

VREF

5V EN

8 (14)

VREF

7 (12) VCC

5 (9) GND

VFB 2 (3)

COMP 1 (1)

CURRENT

SENSE

RT/CT 4 (7)

3 (5)

VREF

Good Logic

Error Amp

2R

R

Oscillator

Current

Sense

1V

R

PWM

Latch

S

T

7 (11) PWR

VC

OUTPUT

6 (10)

PWR

5 (8) GND

( ) are 14 Pin S.O.I.C. pin number

Note 2 :VCC and PWR VC are internally connected for 8 pin packages.

Note 3 :PWR GND and GND are internally connected for 8 pin packages.

Note 4 :U.V.L.O. is 16V for 3842B and 8.4V for 3843B.

Note 5 :Hysteresis is 6V for 3842B and 0.8V for 3843B.

Copyright © 2002, ADD Microtech Corp.

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