KA431AD [SAMSUNG]
Voltage Reference, BIPolar, PDSO8;
| 型号： | KA431AD |
| 厂家： | 
SAMSUNG |
| 描述： | Voltage Reference, BIPolar, PDSO8 光电二极管 输出元件 |
| 文件： | 总6页 (文件大小：83K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
KA431/A/L
PROGRAMMABLE SHUNT REGULATOR
PROGRAMMABLE SHUNT REGULATOR
TO-92
The KA431/A are three-terminal adjustable regulator series with a
guaranteed thermal stability over applicable temperature ranges. The
output voltage may be set to any value between VREF (approximately 2.5
volts) and 36 volts with two external resistors These devices have a
typical dynamic output impedance of 0.2
.
Active output circuitry
provides a very sharp turn-on characteristic, making these devices
excel lent replacement for zener diodes in many applications.
8 DIP
FEATURES
•
•
•
•
•
Programmable output voltage to 36 volts
Low dynamic output impedance 0.20 typical
Sink currant capability of 1.0 to 100mA
Equivalent full-range temperature coefficient of 50ppm/
Temperature compensated for operation over full rated operating
temperature range
8 SOP
typical
•
•
Low output noise voltage
Fast turn on response
BLOCK DIAGRAM
ORDERING INFORMATION
Device
KA431Z
Operating Temperature
Package
TO-92
8 DIP
0~ + 70
0~ + 70
0~ + 70
0~ + 70
0~ + 70
0~ + 70
KA431
KA431D
KA431AZ
KA431AD
KA431LZ
8 SOP
TO-92
8 SOP
TO-92
KA431/A/L
PROGRAMMABLE SHUNT REGULATOR
ABSOLUTE MAXIMUM RATINGS
(Operating temperature range applies unless otherwise specified.)
Characteristic
Cathode Voltage
Symbol
Value
Unit
VKA
IKA
37
V
Cathode current Range (Continuous)
Reference Input Current Range
Power Dissipation
-100~ + 150
0.05~ + 10
mA
mA
IREF
PD
D, Z Suffix Package
770
1000
mW
mW
N Suffix Package
Operating Temperature Range
Storage Temperature Range
TOPR
TSTG
0 ~+ 70
-65 ~ + 150
RECOMMENDED OPERATING CONDITIONS
Characteristic
Cathode Voltage
Cathode Current
Symbol
Min
Typ
Max
Unit
VKA
IKA
VREF
1.0
36
V
100
mA
ELECTRICAL CHARACTERISTICS (TA = 25 , unless otherwise specified)
KA431
KA431A
KA431L
Characteristic
Symbol
Test Conditions
Unit
Min Typ Max Min Typ Max Min Typ Max
Reference Input Voltage
Deviation of Reference
Input Voltage Over-
VREF
VKA=VREF, IKA=10mA
2.440 2.495 2.550 2.470 2.495 2.520 2.482 2.495 2.508
V
VKA=VREF, IKA=10mA
TMIN TA TMAX
4.5
17
4.5
17
4.5
17
mV
VREF
/
T
Temperature (Note 1)
Ratio of Change in
Reference Input Voltage
to the Change in
- 10 - 2.7
- 1.0 - 2.7
-0.5 -2.0
- 1.0 - 2.7
VKA=10V-VREF
VREF
/
I
KA IIKA =10mA
mV/W
-0.5
1.5
-2.0
4
-0.5
1.5
-2.0
4
VKA=36V-10V
Cathode Voltage
Reference Input Current
IREF
1.5
0.4
4
A
A
IKA=10mA,R1=10K ,R2=
Deviation of Reference
Input Current Over
Full Temperature Range
Minimum Cathode Cur-
rent for Regulation
Off - Stage Cathode
Current
IKA=10mA,R1=10K ,R2=
TA =Full Range
0.4
1.2
1.2
0.4
1.2
IREF
/
T
IKA(MIN)
IKA(OFF)
ZKA
VKA=VREF
0.45
0.05
0.15
1.0
1.0
0.5
0.45 1.0
0.05 1.0
0.15 0.5
0.45
0.05
0.15
1.0
1.0
0.5
mA
A
VKA=36V,VREF=0
Dynamic Impedance
(Note 2)
VKA=VREF,IKA=1 to 100mA
f
1.0K
TMIN= 0 , TMAX= +70
KA431/A/L
PROGRAMMABLE SHUNT REGULATOR
TEST CIRCUITS
Fig. 1 Test Circuit for VKA=VREF
Fig. 2 Test Circuit for VKA VREF
Fig. 3 Test Circuit for IKA(OFF)
KA431/A/L
PROGRAMMABLE SHUNT REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
Fig. 4 CATHODE CURRENT VS CATHODE VOLTAGE
Fig. 5 CATHODE CURRENT VS CATHODE VOLTAGE
Fig. 6 CHANGE IN REFERENCE INPUT
VOLTAGE VS CATHODE VOLTAGE
Fig. 7 DYNAMIC IMPEDANCE VS FREQUENCY
Fig. 8 SMALL SIGNAL VOLTAGE
AMPLIFICATION VS FREGUENCY
KA431/A/L
PROGRAMMABLE SHUNT REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
Fig. 9 PULSE RESPONSE
TYPICAL APPLICATIONS
Fig. 10 SHUNT REGULATOR
Fig. 11 OUTPUT CONTROL
OF A THREE-TERMINA L
FIXED REGULATOR
Fig- 2 HIGHERCURRENT
SHUNT REGULATOR
R1
R2
VO = (1 +
) VREF
R1
R1
VO = VREF (1 +
)
VO = (1 +
)VREF
R2
R2
KA431/A/L
PROGRAMMABLE SHUNT REGULATOR
TYPICAL APPLICATIONS
Fig. 13 CURRENT LIMITER OR
CURRENT SOURCE
Fig. 14 CONSTANT-CURRENT SINK
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