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SG3527AN Datasheet(PDF) 3 Page - Microsemi Corporation

Part # SG3527AN
Description  REGULATING PULSE WIDTH MODULATOR
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

SG3527AN Datasheet(HTML) 3 Page - Microsemi Corporation

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SG1525A/SG1527A SERIES
11/91 Rev 1.3 10/96
LINFINITY Microelectronics Inc.
Copyright
© 1996
11861 Western Avenue
∞ Garden Grove, CA 92841
3
(714) 898-8121
∞ FAX: (714) 893-2570
18
17
6
Output Drivers Section (each transistor, V
C = 20V)
I
SOURCE = 20mA
I
SOURCE = 100mA
I
SINK = 20mA
I
SINK = 100mA
V
COMP and V SS = High
V
C = 35V
C
L = 1nF, TJ = 25°C
C
L = 1nF, TJ = 25°C
V
SD = 3V, CS = 0, TJ = 25°C
Output High Level
Output Low Level
Undervoltage Lockout
Collector Leakage (Note 5)
Rise Time
Fall Time
Shutdown Delay (Note 3)
50
0.4
0.4
25
Soft-Start Section
V
SHUTDOWN = 0V
V
SHUTDOWN = 2V
V
SHUTDOWN = 2.5V
Soft Start Current
Soft Start Voltage
Shutdown Input Current
µA
V
mA
P.W.M. Comparator Section
V
COMP = 0.6V
V
COMP = 3.6V
Zero Duty Cycle
Maximum Duty Cycle
Minimum Duty Cycle
Maximum Duty Cycle
Input Threshold (Note 4)
Input Bias Current
%
%
V
V
µA
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)
T
J = 25°C
V
IN = 8V to 35V
MIN
≤ T
J ≤ MAX
R
T = 150KΩ, CT = 0.1µF
R
T = 2KΩ, CT = 1nF
I
RT = 2mA
T
J = 25°C
Sync Voltage = 3.5V
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
Min. Typ. Max. Min. Typ. Max.
SG3525A
SG3527A
SG1525A/2525A
SG1527A/2527A
Units
Test Conditions
Parameter
ELECTRICAL CHARACTERISTICS (continued)
KHz
%
%
Hz
KHz
mA
V
µs
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
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
R
L ≥10MΩ, TJ = 25°C
A
V = 0dB, TJ = 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
µA
µA
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
µA
ns
ns
µs
Total Standby Current
Standby Current
V
IN = 35V
mA
20
14
20
14


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