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SG1524 Fiches technique(PDF) 3 Page - Microsemi Corporation

No de pièce SG1524
Description  REGULATING PULSE WIDTH MODULATOR
Download  6 Pages
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Fabricant  MICROSEMI [Microsemi Corporation]
Site Internet  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

SG1524 Fiches technique(HTML) 3 Page - Microsemi Corporation

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SG1524/SG2524/SG3524
4/90 Rev 1.1 2/94
LINFINITY Microelectronics Inc.
Copyright
© 1994
11861 Western Avenue
∞ Garden Grove, CA 92841
3
(714) 898-8121
∞ FAX: (714) 893-2570
V
IN = 40V
Standby Current
0.8
0.5
0.2
Threshold Voltage
T
J = 25°C
MIN
≤ T
J ≤ MAX
200
190
Current Limit Amplifier Section (Note 6)
Sense Voltage
Input Bias Current
49
0
45
49
45
P.W.M. Comparator (Note 4)
V
COMP = 0.5V
V
COMP = 3.6V
Minimum Duty Cycle
Maximum Duty Cycle
0
%
%
Error Amplifier Section (Note 5)
R
S ≤ 2KΩ
R
L ≥10MΩ, TJ = 25°C
V
PIN 1 - VPIN 2 ≥ 150mV
V
PIN 2 - VPIN 1 ≥150mV
V
CM = 1.8V to 3.4V
V
IN = 8V to 40V
T
J = 25°C
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)
ELECTRICAL CHARACTERISTICS (continued)
36
34
200
3
0.6
3.2
0.3
Oscillator Section (Note 4)
Initial Accuracy
Voltage Stability
Maximum Frequency
Sawtooth Peak Voltage
Sawtooth Valley Voltage
Clock Amplitude
Clock Pulse Width
Min. Typ. Max. Min. Typ. Max.
SG1524/2524
SG3524
Units
Test Conditions
Parameter
T
J = 25°C
MIN
≤ T
J ≤ MAX
V
IN = 8V to 40V
R
T = 2KΩ, CT = 1nF
V
IN = 40V
V
IN = 8V
KHz
KHz
%
KHz
V
V
V
µs
44
46
1
3.8
1.2
1.5
40
0.1
400
1
36
34
200
3
0.6
3.2
0.3
44
46
1
3.8
1.2
1.5
40
0.1
400
1
mV
µA
µA
dB
V
V
dB
dB
MHz
10
10
2
0.5
2
1
0.2
4.2
2
60
3.8
1
5
10
1
0.5
0.5
1
0.2
4.2
2
72
3.8
70
55
1
210
200
180
200
220
200
mV
µA
T
J = 25°C
Shutdown Section
1.2
1.8
0.5
0.2
0.8
1.2
1.8
V
V
µA
V
V
µs
µs
50
2
0.4
0.2
50
2
0.4
0.2
17
17
Output Section (each transistor)
Collector Leakage Current
Collector Saturation Voltage
Emitter Output Voltage
Collector Voltage Rise Time
Collector Voltage Fall Time
V
CE = 40V
I
C = 50mA
I
E = 50mA
R
C = 2KΩ
R
C = 2KΩ
Power Consumption
Note 4. F
OSC = 40KHz (R T = 2.9KΩ, CT = .01µF)
Note 5. V
CM = 2.5V
Note 6. V
CM = 0V
Note 7. These parameters, although guaranteed over the recommended operating conditions, are not 100% tested in production.
10
7
10
7mA


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