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SG1526BL Datasheet(PDF) 3 Page - Microsemi Corporation

Part # SG1526BL
Description  REGULATING PULSE WIDTH MODULATOR
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

SG1526BL Datasheet(HTML) 3 Page - Microsemi Corporation

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Rev 1.1a
Copyright
© 1994
11861 Western Avenue
∞ Garden Grove, CA 92841
3
(714) 898-8121
∞ FAX: (714) 893-2570
SG1526B/SG2526B/SG3526B
R
S ≤ 50Ω
mV
µA
ns
I
SOURCE = 40 µA
I
SINK = 3.6mA
V
IH = 2.4V
V
IL = 0.4V
(Note9)
2.4
2.4
4
0.2
-125
-225
0.4
-200
-360
200
4
0.2
-125
-225
0.4
-200
-360
200
V
V
µA
µA
ns
Minimum Duty Cycle
Maximum Duty Cycle
V
COMPENSATION = 0.4V
V
COMPENSATION = 3.6V
45
49
0
45
49
0%
%
I
SOURCE = 20mA
I
SOURCE = 100mA
I
SINK = 20mA
I
SINK = 100mA
V
C = 40V
C
L = 1000pF
C
L = 1000pF
HIGH Output Voltage
LOW Output Voltage
Collector Leakage
Rise Time
Fall Time
R
S ≤ 2KΩ
R
L ≥ 10MΩ
V
PIN1 - VPIN2 ≥ 150mV, ISOURCE = 100µA
V
PIN2 - VPIN1 ≥ 150mV, ISINK = 100µA
R
S ≤ 2KΩ
V
IN = 8V to 35V
Error Amplifier Section (Note 5)
Input Offset Voltage
Input Bias Current
Input Offset Current
DC Open Loop Gain
High Output Voltage
Low Output Voltage
Common Mode Rejection
Supply Voltage Rejection
Oscillator Section (Note 4)
T
J = 25°C
V
IN = 8 to 35V
Over Operating T
J
R
T = 150KΩ, CT = 20µF
R
T = 2KΩ, CT = 470pF
V
IN = 35V
V
IN = 8V
R
L = 2.0KΩ to VREF
Initial Accuracy
Voltage Stability
Temperature Stability (Note 9)
Minimum Frequency (Note 9)
Maximum Frequency
Sawtooth Peak Voltage
Sawtooth Valley Voltage
SYNC Pulse Width
SG3526B
Test Conditions
Parameter
Units
RESET = 0.4V
RESET = 2.4V
Error Clamp Voltage
C
S Charging Current
ELECTRICAL CHARACTERISTICS (continued)
Soft-Start Section
Note 3. I
L = 0mA
Note 4. F
OSC
= 40KHz (R
T
= 4.12K
Ω ±1%, C
T
= .01
µF ±1%, R
D
= 0
Ω)
Note 5. V
CM = 0 to 5.2V
Note 6. V
CM = 0 to 12V
Note 7. V
C = 15V
Note 8. V
IN
= 35V
Note 9. These parameters, although guaranteed over the recom-
mended operating conditions, are not tested in production.
Standby Current
0.3
2
150
0.4
0.15
5
-1000
100
0.4
±8
1.0
10
1.0
3.5
1.1
2
SG1526B/2526B
0.4.
150
Min. Typ. Max. Min. Typ. Max.
500
2.5
0.5
±3
0.5
7
3.0
1.0
1.0
500
2.5
0.5
±3
0.5
3
3.0
1.0
1.0
±8
1.0
5
1.0
3.5
1.1
2
%
%
%
Hz
KHz
V
V
µs
64
3.6
70
66
2
-350
35
72
4.2
0.2
94
80
60
3.6
70
66
2
-350
35
72
4.2
0.2
94
80
10
-2000
200
0.4
mV
nA
nA
dB
V
V
dB
dB
PWM Comparator Section (Note 4)
Digital Ports (SYNC, SHUTDOWN, and RESET)
HIGH Output Voltage
LOW Output Voltage
HIGH Input Current
LOW Input Current
SHUTDOWN Delay to Output
Current Limit Comparator Section (Note 6)
Sense Voltage
Input Bias Current
Delay to Output (Note 9)
120
-10
400
100
-3
80
110
-10
400
100
-3
90
Output Drivers (each output) (Note 7)
50
0.1
100
50
0.1
100
0.4.
150
V
µA
V
V
V
V
µA
µs
µs
0.3
2
150
0.4
0.15
13.5
13
0.2
1.2
50
0.3
0.1
12.5
12
13.5
13
0.2
1.2
50
0.3
0.1
12.5
12
Power Consumption Section (Note 8)
SHUTDOWN = 0.4V
18
30
18
30
mA


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