GREEN MODE PWM CONTROLLER

AP384XG

Data Sheet

7

Jul. 2013 Rev. 2. 0

BCD Semiconductor Manufacturing Limited

Figure 4. Basic Test Circuit

Figure 4 is the basic test circuit for AP384XG. In testing, the high peak currents associated with capacitive loads

necessitate careful grounding techniques. Timing and bypass capacitors should be connected close to pin 5 in a

single point ground. The transistor and 5k potentiometer are used to sample the oscillator waveform and apply an

adjustable ramp to pin 3.

Electrical Characteristics (Continued)

1

2

8

7

AP3842G

3

45

6

REF

VCC

OUTPUT

GND

R

CS

FB

COMP

V

REF

V

CC

OUTPUT

GND

1K

1W

C

T

5k

I

SENSE

ADJUST

1k

ERROR AMP

ADJUST

4.7k

100k

2N2222

4.7k

R

T

0.1

μF

0.1

μF

A