Data Sheet
GREEN MODE PWM CONTROLLER
Pin Configuration
P/M Package
(DIP-8/SOIC-8)
COMP
FB
CS
R
T
/C
T
1
2
3
4
8
7
6
5
REF
VCC
OUTPUT
GND
AP384XG
Figure 2. Pin Configuration of AP384XG
Pin Description
Pin Number
1
2
3
4
5
6
7
8
Pin Name
COMP
FB
CS
R
T
/C
T
GND
OUTPUT
VCC
REF
Function
This pin is the Error Amplifier output and is made available for loop compensation.
The inverting input of the Error Amplifier. It is normally connected to the switching power
supply output through an external resistor divider.
It is used either for current sense (normal mode) or skip cycle level selection (standby mode).
The oscillator frequency and maximum output duty cycle are programmed by connecting
resistor R
T
to REF and capacitor C
T
to ground.
The ground pin.
This output directly drives the gate of a power MOSFET. Peak currents up to 1.0 A are
sourced and sunk by this pin.
The power supply pin.
This is the reference output. It provides charging current for capacitor C
T
through resistor R
T
.
Aug. 2005 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
2
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
