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