參數(shù)資料
型號(hào)： SG1540Y/883B
廠商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類： 穩(wěn)壓器
英文描述： OFF-LINE START-UP CONTROLLER
中文描述： 0.2 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, CDIP8
封裝： HERMETIC SEALED, CERAMIC, DIP-8
文件頁(yè)數(shù)： 3/6頁(yè)
文件大?。?/td> 98K
代理商： SG1540Y/883B
Rev 1.1a
Copyright
1994
11861 Western Avenue
∞
∞ Garden Grove, CA 92841
3
(714) 898-8121
∞
∞ FAX: (714) 893-2570
SG1540/SG2540/SG3540
ELECTRICAL CHARACTERISTICS (continued)
Note 3. F
OSC
= 50KHz, R
T
= 3.48K C
T
= 4.7nF unless otherwise specified.
Note 4. These parameters, although guaranteed, are not tested in production.
SG1540/2540/3540
Parameter
Units
Min.
Typ. Max.
Test Conditions
T
J = 25°C
+V
IN = 12 to 18V
R
T = 17.8K, CT = .068F
R
T = 1.5K, CT = 470pF
46
400
50
5
2
54
12
5
1
KHz
%
KHz
Initial Accuracy
Voltage Stability
Temperature Stability (Note 4)
Oscillator Minimum Frequency
Oscillator Maximum Frequency
AC Output Section
I
SOURCE = 20mA
I
SOURCE = 100mA
I
SINK = 20mA
I
SINK = 100mA
C
L = 1000pF
C
L = 1000pF
0.3
2.0
55
0.6
0.2
Overvoltage Threshold
Overvoltage Bias Current
Overvoltage Clamp Voltage
+V
IN Overvoltage Threshold
SCR ON Voltage
SCR Holding Current
2.50
0.1
7
42
9
0.35
2.63
1
8
44
12
0.55
V
A
V
mA
CHARACTERISTIC CURVES
Overvoltage Crowbar Section
FIGURE 2 - OSCILLATOR FREQUENCY VS. R
T AND CT
FIGURE 1 - SATURATION VOLTAGE (DC OUT PIN) VS. OUTPUT CURRENT
Oscillator Section (Note 3)
V
%
S
13.5
13.0
0.2
1.2
50
0.3
0.1
12.5
12.0
45
HIGH Output Voltage
LOW Output Voltage
Squarewave Duty Cycle
AC Output Risetime
AC Output Falltime
2.37
6
37
0.15
V
O.V. = 0 to 2.37V
I
O.V. = 1mA
I
VIN = 35mA
V
O.V. = 0
O
B
SO
LETE
PRO
D
UCT
NOT
RECOMMENDED
FOR
NEW
DESIGNS
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