SG1525A Microsemi Corporation, SG1525A Datasheet - Page 3

• Manufacturer Part Number: SG1525A
• Description: REGULATING PULSE WIDTH MODULATOR
• Manufacturer: Microsemi Corporation

11/91 Rev 1.3 10/96
Copyright
ELECTRICAL CHARACTERISTICS
Oscillator Section
Initial Accuracy
Voltage Stability
Temperature Stability
Minimum Frequency
Maximum Frequency
Current Mirror
Clock Amplitude
Clock Width
Sync Threshold
Sync Input Current
Error Amplifier Section
Input Offset Voltage
Input Bias Current
Input Offset Current
DC Open Loop Gain
Gain-Bandwidth Product
Output Low Level
Output High Level
Common Mode Rejection
Supply Voltage Rejection
P.W.M. Comparator Section
Minimum Duty Cycle
Maximum Duty Cycle
Input Threshold
Input Bias Current
Soft-Start Section
Soft Start Current
Soft Start Voltage
Shutdown Input Current
Output Drivers Section
Output High Level
Output Low Level
Undervoltage Lockout
Collector Leakage
Rise Time
Fall Time
Shutdown Delay
Total Standby Current
Standby Current
1996
Parameter
(Note 4)
(Note 3)
(Note 5)
(Note 4)
(Note 3)
(Note 3)
(Note 3)
(each transistor, V
(V
(Note 3)
CM
= 5.1V)
T
V
MIN
R
R
I
T
Sync Voltage = 3.5V
R
A
V
V
V
V
Zero Duty Cycle
Maximum Duty Cycle
V
V
V
I
I
I
I
V
V
C
C
V
V
RT
SOURCE
SOURCE
SINK
SINK
J
J
IN
V
CM
IN
COMP
COMP
SHUTDOWN
SHUTDOWN
SHUTDOWN
COMP
C
SD
IN
T
T
L
L
L
= 25 C
= 25 C
= 150K , C
= 2K , C
= 2mA
= 0dB, T
= 1nF, T
= 1nF, T
= 35V
(continued)
= 8V to 35V
= 8V to 35V
= 35V
= 3V, C
10M
= 1.5V to 5.2V
= 20mA
= 100mA
C
= 20V)
= 0.6V
= 3.6V
and V
T
= 20mA
= 100mA
J
= 0V
= 2V
= 2.5V
MAX
T
J
J
S
J
SS
T
J
= 25 C
= 25 C
= 25 C
= 0, T
= 1nF
= 25 C
Test Conditions
= High
T
= 0.1 F
J
= 25 C
3
SG1525A/SG1527A SERIES
SG1525A/2525A
SG1527A/2527A
Min. Typ. Max. Min. Typ. Max.
37.6
350
1.7
3.0
0.3
1.2
3.8
0.6
60
60
50
45
25
18
17
1
6
±0.3
100
2.0
3.5
0.5
2.0
1.0
0.5
0.2
5.6
0.9
3.3
.05
0.4
0.4
0.2
1.0
0.2
40
±3
75
75
60
49
50
19
18
50
14
1
2
7
11861 Western Avenue
42.4
150
200
600
300
2.2
1.0
2.8
2.5
0.5
3.6
2.0
0.6
1.0
0.4
2.2
0.5
±1
±6
10
80
20
5
1
0
8
L
37.6
INFINITY Microelectronics Inc.
[phone]
350
1.7
3.0
0.3
1.2
3.8
0.6
60
60
50
45
25
18
17
1
6
SG3525A
SG3527A
100
2.0
3.5
0.5
2.0
1.0
0.2
5.6
0.9
3.3
.05
0.4
0.4
0.2
1.0
0.2
±1
±3
40
75
75
60
49
50
19
18
50
14
2
1
2
7
Garden Grove, CA 92841
42.4
150
200
600
300
2.2
1.0
2.8
2.5
0.5
3.6
2.0
0.6
1.0
0.4
2.2
0.5
±2
±6
10
10
80
20
FAX: [phone]
1
0
8
Units
MHz
KHz
KHz
mA
mA
mV
mA
mA
Hz
dB
dB
dB
ns
ns
%
%
%
%
V
V
V
V
V
V
V
V
V
V
V
V
A
A
A
A
A
s
s