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SG1846 Datasheet(PDF) 3 Page - Microsemi Corporation

Part No. SG1846
Description  CURRENT MODE PWM CONTROLLER
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Maker  MICROSEMI [Microsemi Corporation]
Homepage  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

SG1846 Datasheet(HTML) 3 Page - Microsemi Corporation

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SG1846
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
Collector Emitter Voltage
Collector Leakage Current
Output Low Level
Output High Level
Rise Time (Note 4)
Fall Time (Note 4)
Threshold Voltage
Input Voltage Range
Minimum Latching Current
(I
PIN 1)
(Note 7)
Maximum Non-Latching Current
(I
PIN 1)
(Note 8)
Delay to Outputs (Note 4)
T
J = 25°C
250
0
3.0
350
1.5
1.5
300
400
V
IN
0.8
600
250
0
3.0
350
1.5
1.5
300
400
V
IN
0.8
600
mV
V
mA
mA
ns
Output Section
V
C = 40V
I
SINK = 20mA
I
SINK = 100mA
I
SOURCE = 20mA
I
SOURCE = 100mA
C
L = 1nF,
T
J = 25°C
C
L = 1nF,
T
J = 25°C
40
13
12
0.1
0.4
13.5
13.5
50
50
200
0.4
2.1
300
300
40
13
12
0.1
0.4
13.5
13.5
50
50
200
0.4
2.1
300
300
V
µA
V
V
V
V
ns
ns
Amplifier Gain (Notes 5 & 6)
Maximum Differential (Note 6)
Input Signal (V
PIN 4 - VPIN 3)
(Note 5)
Input Offset Voltage (Note 5)
CMRR
PSRR
Input Bias Current (Note 5)
Input Offset Current (Note 5)
Input Common Mode Range
Delay to Outputs (Note 4)
2.5
1.1
60
60
0
2.75
1.2
5
83
84
-2.5
0.08
200
3.0
25
-10
1
V
IN -3
500
2.5
1.1
60
60
0
2.75
1.2
5
83
84
-2.5
0.08
200
3.0
25
-10
1
V
IN -3
500
Input Offset Voltage
Input Bias Current
Input Offset Current
Common Mode Range
Open Loop Voltage Gain
Unity Gain Bandwidth (Note 4)
CMRR
PSRR
Output Sink Current
Output Source Current
High Level Output Voltage
Low Level Output Voltage
V
IN = 8V to 40V
V
O = 1.2V to 3V,
V
CM = 2V
T
J = 25°C
V
CM = 0V to 38V,
V
IN = 40V
V
IN = 8V to 40V
V
ID = - 15mV to -5V,
V
PIN 7 = 1.2V
V
ID = 15mV to 5V,
V
PIN 7 = 2.5V
R
L = 15KΩ
(Pin 7)
R
L = 15KΩ
(Pin 7)
0
80
0.7
75
80
2
-0.4
4.3
0.5
-0.6
40
105
1.0
100
105
6
-0.5
4.6
0.7
5
-1
250
V
IN-2V
1
0.5
-0.6
40
105
1.0
100
105
6
-0.5
4.6
0.7
10
-2
250
V
IN -2V
1
Error Amp Section
ELECTRICAL CHARACTERISTICS (continued)
Min. Typ. Max. Min. Typ. Max.
SG1846
SG2846
Parameter
Test Conditions
Units
SG3846
39
3.9
3.9
Initial Accuracy
Voltage Stability
Temperature Stability (Note 4)
Sync Output High Level
Sync Output Low Level
Sync Input High Level
Sync Input Low Level
Sync Input Current
T
J = 25°C
V
IN = 8V to 40V
Over Operating Range
Pin 8 = 0V
Pin 8 = 0V
Sync Voltage = 5.25V, Pin 8 = 0V
43
1
1
4.35
2.3
1.2
47
2
2.5
2.5
1.5
39
3.9
3.9
43
1
1
4.35
2.3
1.2
47
2
2.5
2.5
1.5
KHz
%
%
V
V
V
V
mA
Oscillator Section (Note 9)
mV
µA
nA
V
dB
MHz
dB
dB
mA
mA
V
V
0
80
0.7
75
80
2
-0.4
4.3
Current Sense Amplifier Section
V
PIN 3 = 0V,
Pin 1 Open
Pin 1 Open R
L = 15KΩ
(Pin 7)
V
PIN 1 = 0.5V, Pin 7 Open
V
CM = 1V to 12V
V
IN = 8V to 40V
V
PIN 1 = 0.5V,
Pin 7 Open
V
PIN 1 = 0.5V,
Pin 7 Open
T
J = 25°C
V
V
mV
dB
dB
µA
µA
V
ns
Current Limit Adjust Section
Current Limit Offset Voltage(Note 5)
Input Bias Current
0.55
-30
0.5
-10
0.55
-30
0.45
0.5
-10
0.45
V
PIN 3 = 0, VPIN 4 = 0V,
Pin 7 Open
V
PIN 5 = VREF,
V
PIN 6 = 0V
Shutdown Terminal Section
V
µA


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