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參數(shù)資料
| 型號： | S3842P |
| 廠商： | AUK Corp |
| 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)： | 3/7頁 |
| 文件大?。?/td> | 316K |
| 代理商： | S3842P |
KSI-L006-000
3
S3842P
Electrical Characteristics
(Unless otherwise stated, these specifications apply for 0
≤
Ta
≤
70
°
C;
V
CC
=15V
(Note.4),
R
L
=10
, C
L
=3.3nF
)
Characteristic
Symbol
Test Condition
1. Reference Section
Ta
=25
°
C
,
I
O
=1mA
△
Vref
12V
≤
V
CC
≤
25V
Min.
Typ. Max.
Unit
Output Voltage
Vref
4.90
5.00
5.10
V
Line Regulation
-
6
20
mV
Load Regulation
△
Vref
1mA
≤
I
O
≤
20mA
-
6
25
mV
Temperature Stability
△
V
T
/
△
V
T
(Note 1)
10Hz
≤
f
≤
10KHz,T
a
=25
°
C(Note
1)
T
a
=125
°
C, 1000Hrs (Note 1)
-
0.2
0.4
mV/
°
C
Output Noise Voltage
V
n
-
50
-
uV
Long Term Stability
S
-
5
-
mV
Output Short Circuit
I
SC
-
-30
-100
-180
mA
2. Oscillator Section
Initial Accuracy
f
SC
T
a
=25
°
C
47
52
57
KHz
Voltage Stability
△
f /
△
V
12
≤
V
a
≤
25V
-
0.05
1.0
%
Temperature Stability
△
f /
△
T
T
min
≤
T
a
≤
T
max
(Note 1)
-
5
-
%
Amplitude
V
4
V
PIN4
Peak to Peak
-
1.7
-
V
3. Error Amp Section
Input Voltage
V
2
V
PIN1
=2.5V
2.42
2.50
2.58
V
Input Bias Current
I
b
-
-
-0.3
-2.0
Open Loop Voltage Gain
A
VO1
2V
≤
V
O
≤
4V
65
90
-
Supply Voltage Rejection
SVR
12V
≤
V
a
≤
25V
60
70
-
Output Sink Current
I
O
V
PIN2
=2.7V, V
PIN1
=1.1V
2
6
-
mA
Output Source Current
I
O
V
PIN2
=2.3V, V
PIN1
=5V
-0.5
-0.8
-
mA
V
OUT
High
V
ch
V
PIN2
=2.3V, R
L
=15
to Ground
5
6
-
V
V
OUT
Low
V
c1
V
PIN2
=2.7V, R
L
=15
Pin8
-
0.7
1.1
V
4. Current Sense Section
Gain
G
V
(Note 2 & 3)
2.8
3.0
3.2
V/V
Maximum Input Signal
V
3
V
PIN 1
=5V (Note 2)
0.9
1.0
1.1
V
Supply Volt Rejection
SVR
12
≤
V
a
≤
25V (Note 2)
-
70
-
Input Bias Current
I
b
-
-
-2
-10
5.Output Section
I
SINK
=20mA
-
0.1
0.4
V
Output Low Level
V
Ol
I
SINK
=200mA
-
1.5
2.2
V
I
SOURCE
=20mA
13.0
13.5
-
V
Output High Level
V
Oh
I
SOURCE
=200mA
12.0
13.5
-
V
Rise time
t
r
T
a
=25
°
C, C
l
=1nF (Note 1)
-
50
150
ns
Fall time
t
f
T
a
=25
°
C, C
l
=1nF (Note 1)
-
50
150
ns
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