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參數(shù)資料
| 型號： | KA3884 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SMPS CONTROLLER |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | DIP-8 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 69K |
| 代理商： | KA3884 |
KA3882/3/4/5 SMPS CONTROLLER
ELECTRICAL CHARACTERISTICS(Continued)
(V
CC
= 15V, R
T
= 10K
`
, C
T
= 3.3nF, T
A
= 0
to + 85
, Unless otherwise specified)
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
ERROR AMPLIFIER SECTION
Input Voltage
Input Bias Current
V
I
T
PIN1
= 2.5V
2.42
2.50
-0.3
2.58
- 2
V
uA
I
BIAS
Open Loop Gain
G
VO
V
O
= 2V to 4V
(NOTE 1)
T
J
= 25
(NOTE 1)
V
CC
= 12V to 25V
(NOTE 1)
V
PIN2
= 2.7V
V
PIN1
= 1.1V
V
PIN2
= 2.3V
V
PIN1
= 5.0V
V
PIN2
= 2.3V
R1 = 15K
`
to GND
V
PIN2
= 2.7V
R1 = 15K
`
to Pin8
65
90
dB
Unity Gain Bandwidth
GBW
0.7
1
MHz
PSRR
PSRR
60
70
dB
Output Sink Current
I
SINK
2
6
mA
Output Source Current
I
SOURCE
-0.5
-0.8
mA
Output High Voltage
V
OH
5
6
V
Output Low Voltage
V
OL
0.8
1.1
V
OUTPUT SECTION
I
SINK
= 20mA
I
SINK
= 200mA
I
SOURCE
= 20mA
I
SOURCE
= 200mA
T
J
= 25
, C1 = 1nF
(NOTE 1)
T
J
= 25
, C1 = 1nF
(NOTE 1)
V
CC
= 27V, C1 = 1nF
0.1
1.5
13.5
13.5
0.4
2.2
V
V
V
V
13
12
Rise Time
t
R
40
100
ns
Fall Time
t
F
40
100
ns
Output Voltage Swing Limit
UNDER VOLTAGE LOCKOUT SECTION
V
OLIM
22
V
KA3882/4
KA3883/5
KA3882/4
KA3883/5
15
7.8
9
7.0
16
8.4
10
7.6
17
9.0
11
8.2
V
V
V
V
Min.Operating Voltage
( After turn on )
Output Low Level
V
OL
Output High Level
V
OH
Start Threshold
V
TH
V
TL
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