參數(shù)資料
型號: AT431C
廠商: Electronic Theatre Controls, Inc.
英文描述: Low-Voltage Adjustable Precision Shunt Regulator
中文描述: 低電壓可調(diào)節(jié)精密并聯(lián)穩(wěn)壓器
文件頁數(shù): 3/14頁
文件大?。?/td> 355K
代理商: AT431C
AT431
Low-Voltage Adjustable Precision
Shunt Regulator
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW:
http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email:
service@aimtron.com.tw
3
Absolute maximum ratings (TA = 25
o
C)
Parameter
Cathode voltage
Continuous cathode current range
Reference Current
Operating temperature
Storage temperature
Package thermal impedance
θ
JA
Symbol
VKA
IK
IREF
T
OPR
T
STG
SOT-23-5
SOT-23-3
TO-92
Limits
12
-20~20
-0.05~3
-30~+85
-55~+150
347
unit
V
mA
mA
o
C
o
C
o
C / W
156
Power Dissipation
PD
(TJ(max)-TA)/
θ
JA
Stresses beyond those listed under “ absolute maximum ratings” may cause permanent damage to the
device. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Recommend operating condtion
Parameter
min
Vref
0.05
0
Max
12
15
70
unit
V
mA
o
C
Cathode voltage VKA
Continuous cathode current range IK
Operating free-air temperature range T
A
Electrical characteristics (
unless otherwise noted
)
Parameter
Reference Voltage
Symbol
Min.
1.228
1.221
Typ.
1.24
-
Max.
1.252
1.259
Unit
V
V
Conditions
Vref
(
TA = 25
o
C
)
Vref (
TA = full
range 0~70
o
C)
Vref(dev)
VKA= Vref
IK=10mA
(Figure 1)
Vref deviation over full
temperature range
Ratio of Vref change in
cathode voltage change
Reference terminal
current
Iref deviation over full
temperature range
Minimum cathode current
for regulation
Off-state cathode current
-
4
20
mV
VKA= Vref
IK=10mA
(Figure 1)
mV/V VKA= Vref to 12V
IK=10mA
(Figure 2)
μ
A
IK=10mA
R1=10K
(Figure 2)
μ
A
IK=10mA R1=10K
R2=open
(Figure 2)
μ
A
VKA= Vref
(Figure 1)
Vref /
VKA
-
-1.5
-2.7
Iref
-
0.15
0.5
Iref(dev)
-
0.05
0.3
IK(min)
-
40
50
IK(off)
-
0.001
0.1
μ
A
VKA=12V
Vref =0V
(Figure 3)
VKA= Vref f
1KHz
IK=0.1mA to 15mA
(Figure 1)
Dynamic impedance
| ZKA |
-
0.20
0.4
* The dynamic impedance is defined as :
|ZKA| =
VKA /
IKA
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