CM3842 查看數據表（PDF） - Unspecified

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产品描述 (功能)

生产厂家

CM3842

CURRENT MODE PWM CONTROLLER

Unspecified 

CM3842/3843

CURRENT MODE PWM CONTROLLER

ORDERING INFORMATION

Part Number

CM3842/43CP

CM3842/43CS

Temperature Range

0℃ to 70℃

0℃ to 70℃

Package

8-Pin PDIP(P08)

8-Pin SOIC(S08)

BLOCK DIAGRAM

Internal

Bias

U.V.L.O.

36V

VREF

8

5V EN

VREF

7 VCC

5 GND

VFB

2

COMP 1

CURRENT 3

SENSE

RT/CT 4

VREF

Good Logic

Error Amp

2R

R

Oscillator

Current

Sense

C

1V

R

PWM

Latch

S

T

7 PWR

VC

OUTPUT

6

PWR

5 GND

Note 1 :VCC and PWR VC are internally connected for 8 pin packages.

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

Note 3 :U.V.L.O. is 16V for 3842 and 8.4V for 3843.

Note 4 :Hysteresis is 6V for 3842 and 0.8V for 3843.

2001/06/27 Advanced

Champion Microelectronic Corporation

Page 2

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