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参数资料
| 型号： | AIC3842CN |
| 厂商： | Analog Integrations Corporation |
| 英文描述： | Current-Mode PWM Controller |
| 中文描述： | 电流模式PWM控制器 |
| 文件页数： | 3/7页 |
| 文件大小： | 114K |
| 代理商： | AIC3842CN |
AIC3842
3
n
ELECTRICAL CHARACTERISTICS
{V
CC
= 15V (see Note 2), Ta=25
°
C, unless otherwise
specified.}
PARAMETERS
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Reference Section
Output Voltage
O
=1mA
4.9
5
5.1
V
Line Regulation
V
CC
=12V to 25V
5
20
mV
Load Regulation
O
=1mA to 20mA
5
25
mV
Temperature Coefficient of
Output Voltage
0.2
mV/
°
C
Output Noise Voltage
=10Hz to 10KHz
50
μ
V
Output Voltage Long-Term
Drift
After 1000H at T
A
=25
°
C
5
mV
Short-Circuit Output Current
85
mA
Oscillator Section
Oscillator Frequency (see
Note 3)
47
52
57
KHz
Frequency Change with
Supply Voltage
VCC=12V to 25V
0.2
%
Frequency Change with
Temperature
TA=TLOW to THIGH
5
%
Peak-to-Peak Amplitude at
RT/CT
1.7
V
Error Amplifier Section
Feedback Input Voltage
COMP at 2.5V
2.42
2.50
2.58
V
nput Bias Current
0.3
μ
A
Open-Loop Voltage
Amplification
V
O
=2V to 4V
90
dB
Gain-Bandwidth Product
1
MHz
Supply Voltage Rejection
Ratio
V
CC
=12V to 25V
70
dB
Output Sink Current
V
FB
at 2.7V, COMP at 1.1V
10
mA
Output Source Current
V
FB
at 2.3V, COMP at 5V
1
mA
High-Level Output Voltage
V
FB
at 2.3V, R
L
=15K
to GND
6.2
V
Low-Level Output Voltage
V
FB
at 2.7V, R
L
=15
to VREF
0.8
V
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