參數(shù)資料
型號(hào)： 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(yè)數(shù)： 2/4頁(yè)
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
2
Note 1. Values beyond which damage may occur.
Note 2. At higher input voltages, a dissipation limiting resistor, R
G
, is required. See Figure 1.
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage (+V
) ................................................
Sense Inputs ......................................................................
SCR Trigger Current
(Note 2)
.........................................
Indicator Output Voltage .....................................................
Indicator Output Sink Current ..........................................
Operating Junction Temperature
Hermetic (J Package) ..................................................
Plasitc (N, DW Packages) .......................................
Storage Temperature Range ............................
50mA
150
°
C
150
°
C
-65
°
C to 150
°
C
40V
+V
IN
300mA
40V
J Package:
Thermal Resistance-
Junction to Case
,
θ
JC
.................. 25°C/W
Thermal Resistance-
Junction to Ambient
,
θ
JA
.............. 70°C/W
N Package:
Thermal Resistance-
Junction to Case
,
θ
JC
.................. 30°C/W
Thermal Resistance-
Junction to Ambient
,
θ
JA
............. 60°C/W
DW Package:
Thermal Resistance-
Junction to Case
,
θ
JC
.................. 35°C/W
Thermal Resistance-
Junction to Ambient
,
θ
JA
............. 90°C/W
Input Supply Voltage (+V
) ....................................
Current Limit Common Mode
Input Voltage Range .......................................
Reference Load Current ...........................................
Indicator Output Voltage ........................................
Indicator Output Current ...........................................
4.7V to 40V
0V to +V
-3V
0 to 10mA
4.7V to 40V
0 to 10mA
Delay Timing Capcitor
(Note 4)
.....................................
Operating Ambient Temperature Range
SG1544 .........................................................
SG2544 ...........................................................
SG3544 ..............................................................
0 to 1
μ
F
-55
°
C to 125
°
C
-25
°
C to 85
°
C
0
°
C to 70
°
C
Note 3: Range over which the device is functional.
Note 4. Larger value capacitor may be used with peak current limiting. See Figure 1.
RECOMMENDED OPERATING CONDITIONS
(Note 3)
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG1544 with -55
°
C
≤
T
≤
125
°
C, SG2544 with
-25
°
C
≤
T
≤
85
°
C, SG3544 with 0
°
C
≤
T
≤
70
°
C, and +V
= 10V. Indicator outputs have 2k
pull-up resistors. All electrical ratings and specifications
are tested with the inverting over-voltage input and the non-inverting under-voltage input externally connected to the 2.5V reference. Low duty cycle
testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
7
40
40
10
4.5
4.7
Supply Section
Input Voltage Range
T
J
= 25
°
C to T
MAX
+V
IN
= 40V, Outputs open
Supply Current
Reference Section
Output Voltage
SG3544
SG1544/2544
Min. Typ. Max.
Units
Test Conditions
Parameter
2.50
1
1
25
.005
2.48
2.45
12
T
J
= 25
°
C
+V
IN
= 5 to 30V
I
REF
= 0 to 10mA
V
REF
= 0V
Line Regulation
Load Regulation
Short Circuit Current
Temperature Stability
V
V
mV
mV
mA
%/
°
C
V
V
mA
40
40
10
7
4.5
4.7
Min. Typ. Max.
2.55
2.60
5
10
40
2.50
1
1
25
.005
2.45
2.40
12
2.52
2.55
5
10
40
THERMAL DATA
Note A. Junction Temperature Calculation: T
= T
+ (P
x
θ
).
Note B. The above numbers for
θ
are maximums for the limiting
thermal resistance of the package in a standard mount-
ing configuration. The
θ
numbers are meant to be
guidelines for the thermal performance of the device/pc-
board system. All of the above assume no ambient
airflow.
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