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參數(shù)資料
| 型號(hào)： | SG3524B |
| 廠商： | Microsemi Corporation |
| 英文描述： | REGULATING PULSE WIDTH MODULATOR |
| 中文描述： | 調(diào)控脈寬調(diào)制器 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大小： | 64K |
| 代理商： | SG3524B |
2/00 Rev 1.3 2/00
Copyright
2000
L
IN
F
IN
ITY
Microelectronics Inc.
11861 Western Avenue
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
3
5
V
IN
= 40V, V
SHUTDOWN
= 2.0V
Standby Current
mA
17.5
17
V
= 60V
I
C
= 10mA
I
C
= 100mA
I
E
= 10mA
I
E
= 100mA
R
E
= 2K
, T
A
= 25
°
C
R
C
= 2K
, T
A
= 25
°
C
Collector Leakage Current
Collector Saturation Voltage
Emitter Output Voltage
Emitter Voltage Rise Time
(Note 7)
Collector Voltage Fall Time
Power Consumption
200
-3
180
Sense Voltage
Input Bias Current
Shutdown Input Section
HIGH Input Voltage
HIGH Input Current
LOW Input Voltage
Output Section
(each transistor)
0.1
2.0
V
SHUTDOWN
= 5.0V
49
45
V
COMP
= 0.5V
V
COMP
= 3.9V
Minimum Duty Cycle
Maximum Duty Cycle
Current Limit Amplifier Section
(Note 6)
0.5
1
78
0.2
4.2
90
100
2
60
3.8
70
76
1
Error Amplifier Section
(Note 5)
Input Offset Voltage
Input Bias Current
Input Offset Current
DC Open Loop Gain
Output Low Level
Output High Level
Common Mode Rejection
Supply Voltage Rejection
Gain-Bandwidth Product
(Note 7 )
P.W.M. Comparator
(Note 4)
R
S
≤
2K
R
L
≥
10M
I
SINK
= 100
μ
A; V
- V
≥
150mV
I
SOURCE
= 100
μ
A; V
PIN 2
- V
PIN 1
≥
150mV
V
CM
REF
V
IN
= 7V to 40V
T
J
= 25
°
C
SG1524B/SG2524B/SG3524B
ELECTRICAL CHARACTERISTICS
(continued)
45
0.1
1
50
600
3.5
1
4.0
0.5
42
400
0.6
3.0
0.2
Oscillator Section
(Note 4)
Initial Accuracy
Voltage Stability
Temperature Stability
(Note 7)
Minimum Frequency
(Note 7)
Maximum Frequency
Sawtooth Peak Voltage
Sawtooth Valley Voltage
Clock Amplitude
Clock Pulse Width
T
J
= 25
°
C
V
= 7V to 40V
Over Operating Range
R
T
= 150K
, C
= 0.1
μ
F
R
T
= 2K
, C
T
= 470pF
V
IN
= 40V
V
IN
= 7V
Min. Typ. Max. Min. Typ. Max.
SG1524B/2524B
SG3524B
Units
Test Conditions
Parameter
Note 4. F
OSC
= 45KHz (R
T
= 2700
, C
T
= .01
μ
F)
Note 5. V
CM
= 2.3V to V
Note 6. V
= 0V to 17.5V
Note 7. These parameters, although guaranteed over the recommended operating conditions, are not tested in production.
48
1
2
140
3.9
1.2
40
400
0.6
3.0
0.2
45
0.1
1
50
600
3.5
1
4.0
0.5
50
1
2
120
3.9
1.2
KHz
%
%
Hz
KHz
V
V
V
μ
s
5
5
1
0.5
60
3.8
70
76
1
2
1
78
0.2
4.2
90
100
2
10
10
1
0.5
mV
μ
A
μ
A
dB
V
V
dB
dB
MHz
0
45
49
%
%
0
220
-10
170
200
-3
230
-10
mV
μ
A
1
0.6
2.0
0.1
1
0.6
V
mA
V
μ
A
V
V
V
V
μ
s
μ
s
50
0.4
2.0
0.5
0.2
0.2
1.0
19
18
0.2
0.1
17.5
17
50
0.4
2.0
0.5
0.2
0.2
1.0
19
18
0.2
0.1
12
5
12
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| SG3524BDW | REGULATING PULSE WIDTH MODULATOR |
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