參數(shù)資料
型號(hào)： SG2527ADW
廠(chǎng)商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類(lèi)： 穩(wěn)壓器
英文描述： REGULATING PULSE WIDTH MODULATOR
中文描述： 0.5 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封裝： ROHS COMPLIANT, PLASTIC, SOIC-16
文件頁(yè)數(shù)： 3/7頁(yè)
文件大小： 135K
代理商： SG2527ADW
SG1525A/SG1527A SERIES
11/91 Rev 1.3 10/96
Copyright
1996
L
IN
F
IN
ITY
Microelectronics Inc.
11861 Western Avenue
∞
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
3
18
17
6
Output Drivers Section
(each transistor, V
C
= 20V)
Output High Level
I
SOURCE
= 20mA
I
SOURCE
= 100mA
I
SINK
I
SINK
= 100mA
V
COMP
and V
SS
= High
V
C
C
L
= 1nF, T
J
= 25
°
C
C
L
= 1nF, T
J
= 25
°
C
V
SD
= 3V, C
S
= 0, T
J
= 25
°
C
Output Low Level
Undervoltage Lockout
Collector Leakage
(Note 5)
Rise Time
Fall Time
Shutdown Delay
(Note 3)
Total Standby Current
Standby Current
50
0.4
0.4
25
Soft-Start Section
Soft Start Current
Soft Start Voltage
Shutdown Input Current
V
SHUTDOWN
= 0V
V
SHUTDOWN
= 2V
V
SHUTDOWN
= 2.5V
μ
A
V
mA
P.W.M. Comparator Section
Minimum Duty Cycle
Maximum Duty Cycle
Input Threshold
(Note 4)
V
COMP
= 0.6V
V
= 3.6V
Zero Duty Cycle
Maximum Duty Cycle
Input Bias Current
%
%
V
V
μ
A
0.4
2.2
8
200
600
300
0.5
19
18
0.2
1.0
7
100
50
0.2
37.6
350
1.7
3.0
0.3
1.2
Oscillator Section
(Note 4)
Initial Accuracy
Voltage Stability
Temperature Stability
(Note 3)
Minimum Frequency
(Note 3)
Maximum Frequency
(Note 3)
Current Mirror
Clock Amplitude
Clock Width
Sync Threshold
Sync Input Current
Error Amplifier Section
(V
CM
= 5.1V)
Input Offset Voltage
Input Bias Current
Input Offset Current
DC Open Loop Gain
Gain-Bandwidth Product
(Note 3)
Output Low Level
Output High Level
Common Mode Rejection
Supply Voltage Rejection
T
J
= 25
°
C
V
= 8V to 35V
MIN
≤
T
≤
MAX
R
T
= 150K
, C
= 0.1
μ
F
R
T
= 2K
, C
T
= 1nF
I
RT
= 2mA
T
J
= 25
°
C
Sync Voltage = 3.5V
Min. Typ. Max. Min. Typ. Max.
SG3525A
SG3527A
SG1525A/2525A
SG1527A/2527A
Units
Test Conditions
Parameter
ELECTRICAL CHARACTERISTICS
(continued)
KHz
%
%
Hz
KHz
mA
V
μ
s
V
mA
42.4
±2
±6
150
2.2
1.0
2.8
2.5
40
±1
±3
2.0
3.5
0.5
2.0
1.0
37.6
350
1.7
3.0
0.3
1.2
42.4
±1
±6
150
2.2
1.0
2.8
2.5
40
±0.3
±3
2.0
3.5
0.5
2.0
1.0
R
L
≥
10M
,
T
= 25
°
C
A
V
= 0dB, T
J
= 25
°
C
V
CM
= 1.5V to 5.2V
V
IN
= 8V to 35V
60
1
3.8
60
50
0.5
1
75
2
0.2
5.6
75
60
5
10
1
0.5
60
1
3.8
60
50
2
1
75
2
0.2
5.6
75
60
10
10
1
0.5
mV
μ
A
μ
A
dB
MHz
V
V
dB
dB
45
0.6
0
3.6
2.0
49
0.9
3.3
.05
45
0.6
0
3.6
2.0
49
0.9
3.3
.05
80
0.6
1.0
25
50
0.4
0.4
80
0.6
1.0
19
18
0.2
1.0
7
100
50
0.2
18
17
6
0.4
2.2
8
200
600
300
0.5
V
V
V
V
V
μ
A
ns
ns
μ
s
V
IN
= 35V
mA
20
14
20
14
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