參數(shù)資料
型號: TL1431C
廠商: 意法半導(dǎo)體
英文描述: PROGRAMMABLE VOLTAGE REFERENCE
中文描述: 可編程電壓參考
文件頁數(shù): 2/8頁
文件大?。?/td> 79K
代理商: TL1431C
ABSOLUTE MAXIMUM RATINGS
Symbol
V
KA
I
K
I
ref
T
oper
Parameter
Value
37
Unit
V
mA
mA
o
C
Cathode to Anode Voltage
Continuous Cathode Current Range
Reference Input Current Range
Operating Free-air Temperature Range
-100 to +150
-0.05 to +10
-20 to +70
-40 to +105
-65 to +150
TL1431C/AC
TL1431I/AI
T
stg
Storage Temperature Range
o
C
OPERATING CONDITIONS
Symbol
V
KA
I
K
Parameter
Value
V
ref
to 36
1 to 100
Unit
V
mA
Cathode to Anode Voltage
Cathode Current
ELECTRICALCHARACTERISTICS
T
amb
= 25
o
C (unless otherwise specified)
Symbol
Parameter
TL1431C
Typ.
TL1431AC
Typ.
Unit
Min.
Max.
Min.
Max.
V
ref
Reference Input Voltage - (figure 1)
V
KA
= V
ref
, I
K
= 10mA
Reference Input Voltage Deviation Over
Temperature Range - (figure 1, note1)
V
KA
= V
ref,
I
K =
10mA, T
min.
T
amb
T
max.
Temperature Coefficient of Reference Input
Voltage - (note 2)
V
KA
= V
ref
, I
K
= 10mA, T
min.
T
amb
T
max.
Ratio of Change in Reference Input Voltage to
Change in Cathode to Anode Voltage - (figure2)
I
K
= 10mA,
V
KA
= 36V to 3V
Reference Input Current - (figure 2)
I
K
= 10mA, R
1
= 10k
, R
=
T
amb
= 25
o
C
T
min.
T
amb
T
max.
Reference Input Current Deviation Over
Temperature Range - (figure 2)
I
K
= 10mA, R
1
= 10k
, R
2
=
T
min.
T
amb
T
max.
Minimum Cathode Current for Regulation - (figure
1)
V
KA
= V
ref
Off-State Cathode Current - (figure 3)
Dynamic Impedance - (figure 1, note 3)
V
KA
= V
ref
,
I
K
= 1 to 100mA, f
1kHz
T
amb
= 25
o
C
2.490
2.500
2.510
2.493
2.500
2.507
V
V
ref
3
20
3
20
mV
V
ref
T
±
13
±
90
±
13
±
90
ppm/
o
C
V
ref
V
KA
-2
-1.1
-2
-1.1
mV/V
Iref
1.5
2.5
3
1.5
2.5
3
μ
A
I
ref
0.2
1.2
0.2
1.2
μ
A
I
min
0.5
1
0.5
0.6
mA
I
off
|Z
KA
|
180
500
180
500
nA
0.2
0.5
0.2
0.5
T1
T2
Temperature
V
ref ma x.
V
re fmin.
Notes :
1.
V
ref
is defined as thedifference between the maximum and minimum values obtained over the full temperature
range.
V
ref
= V
refmax.
- V
ref min
2.
The temperature coefficient is defined as the slopes (positiveand negative) of the voltage vs temperature limits whithin
which the reference voltage is guaranteed.
3.
The dynamic Impedance is definedas |Z
KA
|
=
V
KA
I
K
2
5
C
Te mperature
max
2.5V
min
-n p pm/
C
+ n ppm /
C
TL1431
2/8
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