Data Sheet
AZ3842/3/4/5
Advanced Analog Circuits
CURRENT MODE PWM CONTROLLER
Electrical Characteristics
o
o
(V =15V, R =10kΩ C =3.3nF, T = -40 C to +85 C, unless otherwise specified.)
CC
T
T
A
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
REFERENCE SECTION
Reference Output Voltage
Line Regulation
TJ=25oC, IREF=1mA
VREF
∆VREF
∆VREF
ISC
4.90
5.00
4
5.10
15
V
12V ≤ VCC ≤25V
mV
mV
mA
Load Regulation
1mA ≤ IREF ≤20mA
4
15
TA=25oC
Short Circuit Output Current
Temperature Stability
Output Noise Voltage
Long Term Stability
-100
0.2
50
5
-180
0.4
mV/oC
(Note 6)
µV
TA=85oC, 1000 hours
25
mV
OSCILLATOR SECTION
Oscillation Frequency
Frequency Change with Voltage
Oscillator Amplitude
Temperature Stability
ERROR AMPLIFIER SECTION
Input Bias Current
TJ=25oC
f
47
52
0.2
1.7
2.5
57
1
KHz
%
∆f/f
VOSC
12V ≤ VCC ≤ 25V
Pin 4, peak to peak (Note 6)
(Note 6)
V
%
IBIAS
VI
(Note 6)
-0.1
2.50
90
-2
µA
V
Input Voltage
Vpin 1=2.5V
2.42
65
60
2
2.58
Open Loop Voltage Gain
Power Supply Rejection Ratio
Output Sink Current
AVOL
PSRR
ISINK
ISOURCE
VOH
2V ≤ VO ≤ 4V
dB
dB
mA
mA
V
12V ≤ VCC ≤ 25V
70
Vpin2=2.7V, Vpin1=1.1V
Vpin2=2.3V, Vpin1=5V
Vpin2=2.3V, RL=15kΩ to GND
Vpin2=2.7V, RL=15kΩ to Pin 8
4
Output Source Current
High Output Voltage
Low Output Voltage
-0.5
5
-0.8
6
VOL
0.8
1.1
V
CURRENT SENSE SECTION
Gain
GV
VI(MAX)
PSRR
(Note 4, 5)
2.85
0.9
3
1
3.15
1.1
V/V
V
Maximum Input Signal
Power Supply Rejection Ratio
Input Bias Current
Vpin1=5V(Note 4)
12V ≤ VCC ≤ 25V (Note 4, 6)
70
-3
dB
µA
ns
IBIAS
-10
Delay to Output
Vpin3 = 0 to 2V (Note 6)
150
300
OUTPUT SECTION
Low Output Voltage
ISINK = 20mA
0.1
1.4
14
0.4
2.2
V
V
V
V
ns
VOL
ISINK = 200mA
ISOURCE = 20mA
ISOURCE = 200mA
High Output Voltage
13
12
VOH
tR
13
TJ=25oC, CL=1nF (Note 6)
Rise Time
50
150
March 2003
Rev: 1.0
5
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
