参数资料
型号: TL431IU-1
厂商: VISHAY SEMICONDUCTORS
元件分类: 基准电压源/电流源
英文描述: 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, PDSO3
封装: SOT-23, 3 PIN
文件页数: 4/10页
文件大小: 105K
代理商: TL431IU-1
Electrical Characteristics TA = 25°C unless otherwise noted.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
VZ = VREF
GS431B
2.482
2.495
2.508
IL = 10mA (Fig. 1)
TL431A
2.470
2.495
2.520
Reference Voltage
VREF
TA = 25°C
TL431
2.455
2.495
2.535
V
VZ = VREF
GS431B
2.475
2.520
IL = 10mA (Fig. 1)
TL431A
2.445
2.545
TA = –40°C to +85°C
TL431
2.43
2.56
Deviation of reference
VREF
VZ = VREF
TA = 0
°C to 70°C
9.0
20
mV
Input voltage over temperature (1)
IL = 10mA TA = –40
°C to +85°C (Fig. 1)
15.0
50
Ratio of the change in reference voltage
VREF
IZ = 10mA
VZ = VREF ~ 10V
0.5
2.0
mV/V
to the change in cathode voltage
VZ
(Fig. 2)
VZ = 10V ~ 30V
0.35
1.5
Reference input current
IREF
R1 = 10K
, R2 = ∞
TA = 25°C
0.8
3.5
A
IL = 10mA (Fig. 2)
TA = –40°C to +85°C
––
4.5
Deviation of reference input
R1 = 10K
, R2 = ∞
current over temperature
αIREF
IL = 10mA
0.3
1.2
A
TA = –40
°C to +85°C (Fig. 2)
Minimum cathode current
IZ(MIN)
VZ = VREF (Fig. 1)
0.25
0.5
mA
for regulation
Off-state current
IZ(OFF)
VZ = 30V, VREF = 0V (Fig 3)
0.1
1.0
A
Dynamic output impedance(2)
RZ
VZ = VREF, f = 1.0KHZ
0.08
0.3
IZ = 1.0mA to 50mA
Absolute Maximum Ratings TA = 25°C unless otherwise noted.
Parameter
Symbol
Value
Unit
Cathode voltage
VZ
30
V
Continuous cathode current
IZ
–10 to 250
mA
Reference Input Current Range
IREF
–0.05 to10
mA
Operating Temperature Range
Toper
–40 to 85
°C
Junction Temperature
TJ
150
°C
Lead Temperature
TL
260
°C
Storage Temperature
Tstg
–65 to 150
°C
Thermal Resistance
TO-92 Package
115
SOT-23 Package
R
θJA
310
°C/W
SO-8 Package
163
SOT-89 Package
120
GS431B/TL431A/TL431
Vishay
formerly General Semiconductor
Document Number 74806
www.vishay.com
1-Jul-02
3
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