3842CMTR View Datasheet(PDF) - BCD Semiconductor

Part Name

Description

Manufacturer

3842CMTR

CURRENT MODE PWM CONTROLLER

BCD Semiconductor 

CURRENT MODE PWM CONTROLLER

Functional Block Diagram

Data Sheet

AP384XC

VCC 7

GND 5

RT/CT 4

VFB 2

COMP 1

ISENSE

3

34V

2.50V

OSC

ERROR

AMP

UVLO

S/R

5V

REF

INTERNAL

BIAS

8 VREF

VREF

GOOD

LOGIC

T

OUTPUT

6

OVER TEMP

PROTECT

2R

R

1V

(Note)

S

R

CURRENT

SENSE

COMPARATOR

PWN

LATCH

Note: Toggle flip-flop used

for 3844C/45C only

Figure 3. Functional Block Diagram of AP3842C/3C/4C/5C

Sep. 2006 Rev. 1. 1

BCD Semiconductor Manufacturing Limited

3

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