AP384XG Datasheet, PDF (2/14 Pages) Advanced Analogic Technologies – GREEN MODE PWM CONTROLLER

GREEN MODE PWM CONTROLLER
Pin Configuration
M Package
(SOIC-8)
COMP ₁
FB ₂
CS 3
R_T/C_{T 4}
8 REF
7 VCC
6 OUTPUT
5 GND
Data Sheet
AP384XG
P Package
(DIP-8)
COMP 1
FB 2
CS 3
R_T/C_T 4
8 REF
7 ^VCC
6 OUTPUT
5 GND
Figure 2. Pin Configuration of AP384XG (Top View)
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.
Jul. 2013 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
2