Data Sheet
GREEN MODE PWM CONTROLLER
AP384XG
Electrical Characteristics
o
(V =15V, R =10kΩ C =3.3nF, T = -40 to 85 C, unless otherwise specified.)
CC
T
T
A
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
REFERENCE SECTION
Reference Output Voltage
Total Output Variation
Line Regulation
TJ=25oC, IREF=1mA
Line, Load, Temp.
VREF
4.95
4.9
5.00
5.05
5.10
15
V
V
∆VREF
∆VREF
ISC
12V ≤ VCC ≤25V
4
4
mV
mV
mA
Load Regulation
1mA ≤ IREF ≤20mA
15
TA=25oC
Short Circuit Output Current
Temperature Stability
-100
0.2
-180
0.4
mV/oC
UNDER VOLTAGE LOCK OUT SECTION
Start-up Threshold
AP3842G/AP3844G
AP3843G/AP3845G
AP3842G/AP3844G
AP3843G/AP3845G
15
7.8
8.5
7.0
16
8.4
10
17
9.0
V
V
Minimum Operating Voltage
11.5
8.2
7.6
TOTAL STANDBY CURRENT SECTION
Start-up Current
VCC=14V
50
8
80
µA
mA
mA
V
Operating Current
VFB=0, VCS=0, CL=1nF
Standby Operating Current
Zener Voltage
VFB=2.7V, VCS=0.5V
6
ICC=25mA
30
34
PWM SECTION
Maximum Duty Cycle
AP3842G/AP3843G
AP3844G/AP3845G
94
46
96
48
%
%
50
0
Minimum Duty Cycle
OSCILLATOR SECTION
TJ=25oC
Oscillation Frequency
Oscillator Amplitude
Temperature Stability
Voltage Stability
f
47
52
1.7
2
57
KHz
V
VOSC
Pin RT/CT, peak to peak
%
0.2
9.5
1
%
12V ≤VCC ≤25V
Discharge Current
VRT/CT = 2V (Note 4)
8.5
10.5
mA
Note 4: This parameter is measured with RT=10kΩ to V
it contributes 0.3mA of current to the measured value.
REF,
So the total current flowing into the CT pin will be 0.3mA higher than the measured value approximately.
BCD Semiconductor Manufacturing Limited
Aug. 2005 Rev. 1. 2
5
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
