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參數(shù)資料
| 型號： | SG1544 |
| 廠商： | Microsemi Corporation |
| 英文描述： | LOW-VOLTAGE SUPERVISORY CIRCUIT |
| 中文描述： | 低電壓監(jiān)控電路 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 41K |
| 代理商： | SG1544 |
SG1544/SG2544/SG3544
4/90 Rev 1.1 2/94
Copyright
1994
L
IN
F
IN
ITY
Microelectronics Inc.
11861 Western Avenue
∞
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
3
The 100 ohm resistor limits the peak discharge current into the SG1544 while the external PNP transistor provides a high peak-current
discharge path for the delay capacitor.
FIGURE 1 - SURGE LIMIT CIRCUIT FOR LARGE DELAY CAPACITORS
SG1544
0
80
60
72
OFFSET/COMP pin open, V
CM
= 0V
OFFSET/COMP pin open, V
= 0V
10
from OFFSET/COMP pin to Gnd,
T
J
= 25
°
C
0
≤
V
≤
12V, V
= 15V
OFFSET/COMP pin open, V
CM
= 0V
I
L
= 10mA
V
IND
= 40V
A
V
= 0dB, T
= 25
°
C
V
OVERDRIVE
= 100mV, T
J
= 25
°
C
Input Voltage Range
Input Bias Current
Input Offset Voltage
CMRR
AVOL
Output Saturation
Output Leakage
Small Signal Bandwidth
Propagation Delay
0.3
0
100
70
80
0.2
.01
5
200
+V
IN
= 5V, R
G
= 0, V
= 0
+V
IN
= 15V, I
O
= 100mA
+V
= 40V, R
= 1K
REM. ACT. pin = Gnd
REM. ACT pin open
RESET pin = Gnd, REM. ACT. = Gnd
RESET pin open, REM. ACT. = Gnd
R
L
= 50
, T
= 25
°
C, C
D
= 0
V
REM. ACT.
= 0.4V
V
O.V. N.I. INPUT
= 2.7V
Peak Output Current
Peak Output Voltage
Output Off Voltage
Remote Activate Current
Remote Activate Voltage
Reset Current
Reset Voltage
Output Current Rise Time
Prop. Delay from REM. ACT. Pin
Prop. Delay fom O.V. N.I. IN Pin
Current Limit Section
200
13
0
0.4
2
0.4
2
400
300
500
100
12
ELECTRICAL CHARACTERISTICS
(continued)
2.45
2.40
200
Comparator Section
Input Threshold
(Note 5)
T
J
= 25
°
C
Sense input = 0V
V
= 0V
I
L
= 10mA
V
IND
= 40V
V
O.V. N.I. IN
= 2.7V, V
U.V. INV. IN
= 2.3V, T
J
= 25
°
C
D
C
D
= 1
μ
F
Input Hysteresis
Input Bias Current
Delay Saturation
Delay High Level
Delay Charging Current
Indicate Saturation
Indicate Leakage
Propagation Delay
Units
Test Conditions
Parameter
SCR Trigger Section
2.50
25
0.3
0.2
6
250
0.2
.01
400
10
V
-3V
1.0
10
120
0.5
1.0
APPLICATION INFORMATION
SG1544/2544
Min. Typ. Max. Min. Typ. Max.
SG3544
2.55
2.60
1.0
0.5
8
300
0.5
1.0
2.40
2.35
200
2.50
25
0.3
0.2
6
250
0.2
0.1
400
10
2.60
2.65
1.0
0.5
8
300
0.5
1.0
V
V
mV
μ
A
V
V
μ
A
V
μ
A
ns
ms
mA
V
V
mA
V
mA
V
mA/
μ
s
ns
ns
400
0.1
0.8
6
0.8
6
200
13
0
0.4
2
0.4
2
400
300
500
100
12
400
0.1
0.8
6
0.8
6
0
70
60
72
0.3
0
100
70
80
0.2
.01
5
200
V
-3V
1.0
15
130
0.5
1.0
V
μ
A
mV
mV
dB
dB
V
μ
A
MHz
ns
Note 5. Input voltage rising on O.V. N.I. INPUT and falling on U.V. INV. INPUT.
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