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參數(shù)資料
| 型號： | AIC3843 |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | Current-Mode PWM Controller |
| 中文描述： | 電流模式PWM控制器 |
| 文件頁數(shù)： | 3/11頁 |
| 文件大?。?/td> | 189K |
| 代理商： | AIC3843 |
AIC3843
3
n
ELECTRICAL CHARACTERISTICS
{V
CC
= 15V (see Note 2), -40
°
C
otherwise specified.}
T
A
85
°
C, unless
PARAMETERS
CONDITIONS
MIN.
TYP.
MAX.
UNITS
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
0.4
mV/
°
C
Output Noise Voltage
=10Hz to 10KHz
50
μ
V
Output Voltage Long Term
Drift
After 1000H at T
A
=25
°
C
5
25
mV
Short Circuit Output Current
30
85
180
mA
Oscillator Section
Oscillator Frequency (see
Note 3)
47
52
57
KHz
Frequency Change with
Supply Voltage
VCC=12V to 25V
0.2
1
%
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
2
μ
A
Open-Loop Voltage
Amplification
V
O
=2V to 4V
65
90
dB
Gain-Bandwidth Product
0.7
1
MHz
Supply Voltage Rejection
Ratio
V
CC
=12V to 25V
60
70
dB
Output Sink Current
V
FB
at 2.7V, COMP at 1.1V
2
10
mA
Output Source Current
V
FB
at 2.3V, COMP at 5V
0.5
1
mA
High-Level Output Voltage
V
FB
at 2.3V, R
L
=15K
to GND
5
6.2
V
Low-Level Output Voltage
V
FB
at 2.7V, R
L
=15
to VREF
0.8
1.1
V
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