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參數(shù)資料
| 型號(hào)： | KA3525AD |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | SMPS CONTROLLER |
| 中文描述： | 0.5 A SWITCHING CONTROLLER, 430 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.225 INCH, SOP-16 |
| 文件頁(yè)數(shù)： | 3/5頁(yè) |
| 文件大?。?/td> | 78K |
| 代理商： | KA3525AD |
KA3525A SMPS CONTROLLER
ELECTRICAL CHARACTERISTICS
(V
CC
= 20V, T
A
= -35
to +85
, unless otherwise specified)
(Note)
1. These parameters. although guaranteed over the recommended operating conditions, are not 100% tested in
production
2.
Tested at f
OSC
=40 KHz (R
T
=3.6K, C
T
=0.01
s
F, R
I
= 0
`
)
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
ERROR AMPLIFIER SECTION
(V
CM
= 5.1V)
Input Offset Voltage
Input Bias Current
Input Offset Current
Open Loop Voltage Gain
Common Mode Rejection Ratio
Power Supply Rejection Ratio
PWM COMPARATOR SECTION
Minimum Duty Cycle
Maximum Duty Cycle
Input Threshold Voltage (Note 2)
Input Threshold Voltage (N0te 2)
SOFT-START SECTION
Soft Start Current
Soft Start Low Level Voltage
Shutdown Threshold Voltage
Shutdown Input Current
OUTPUT SECTION
Low Output Voltage I
Low Output Voltage II
High Output Voltage I
High Output Voltage II
Under Voltage Lockout
Collector Leakage Current
Rise Time (Note 1)
Fall Time (Note 1)
STANDBY CURRENT
Supply Cuttent
V
IO
I
BAIS
I
IO
G
VO
CMRR
PSRR
1.5
1
0.1
80
90
60
10
10
1
mV
s
A
s
A
dB
dB
dB
R
L
(
10M
`
V
CM
= 1.5 to 5.2V
V
CC
= 8 to 3.5V
60
60
50
D
(MIN)
D
(MAX)
V
TH1
V
TH2
0
%
%
V
V
45
0.7
49
0.9
3.2
Zero Duty Cycle
Max Duty Cycle
3.6
I
SOFT
V
SL
V
TH(SD)
I
N(SD)
V
SD
= 0V, V
SS
= 0V
V
SD
= 25V
25
51
0.3
1.3
0.3
80
0.7
1.7
1
s
A
V
V
mA
0.7
V
SD
= 2.5V
V
OL I
V
OL II
V
CH I
V
CH II
V
UV
I
LKG
t
R
t
F
I
SINK
= 20mA
I
SINK
= 100mA
I
SOURCE
= 20mA
I
SOURCE
= 100mA
V
8
and V
9
= High
V
CC
= 35V
C
L
= 1
s
F, T
J
= 26
C
L
= 1
s
F, T
J
= 25
0.1
0.05
19
18
7
80
80
70
0.4
2
V
V
V
V
V
18
17
6
8
200
600
300
s
A
nS
nS
I
CC
V
CC
= 35V
12
20
mA
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