TL431(OldVer) Просмотр технического описания (PDF) - First Components International
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TL431 Datasheet PDF : 9 Pages
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TL431 Programmable Precision References
ELECTRICAL CHARACTERISTICS (Ambient temperature at 25oC unless otherwise noted)
Characteristic
Reference Input Voltage (Fig. 1)
VKA = Vref, IK = 10mA
TA = 25oC
TA = Tlow to Thigh (Note 1)
Reference Input Voltage Deviation Over
Temperature Range (Fig. 1, Note 1, 2, 4)
VKA = Vref, IK = 10mA
Ratio of Change in Reference Input Voltage
to Change in Cathode to Anode Voltage
IK = 10mA (Fig. 2),
∆VKA = 10V to Vref
∆VKA = 36V to 10V
Reference Input Current (Fig. 2)
IK = 10mA, R1 = 10k, R2 =
TA = 25oC
TA = Tlow to Thigh (Note 1)
Reference Input Current Deviation Over
Temperature Range (Fig. 2, Note 1, 4)
IK = 10mA, R1 = 10k, R2 =
Minimum Cathode Current for Regulation
VKA = Vref (Fig. 1)
Off - State Cathode Current (Fig. 3)
VKA = 36V, Vref = 0V
Dynamic Impedance (Fig. 1, Note 3)
VKA = Vref, ∆IK = 1.0mA to 100mA,
f < 1.0 kHz
Symbol
Vref
∆Vref
TL431I
TL431C
Min Typ Max Min Typ Max
2.44 2.495 2.55
2.44 2.495 2.55
2.41
---
2.58 2.423
---
2.567
---
7.0
30
---
3.0
17
∆Vref
∆VKA
Iref
∆Iref
---
-1.4
-2.7
---
-1.4
-2.7
---
-1.0
-2.0
---
-1.0
-2.0
---
1.8
4.0
---
1.8
4.0
---
---
6.5
---
---
5.2
---
0.8
2.5
---
0.4
1.2
Imin
---
0.5
1.0
---
0.5
1.0
Ioff
---
260
1000
---
2.6
1000
ZKA
---
0.22
0.5
---
0.22
0.5
ELECTRICAL CHARACTERISTICS (Ambient temperature at 25oC unless otherwise noted)
Unit
V
mV
mV/V
µA
µA
mA
nA
Ω
Characteristic
Symbol
Reference Input Voltage (Fig. 1)
VKA = Vref, IK = 10mA
TA = 25oC
TA = Tlow to Thigh (Note 1)
Reference Input Voltage Deviation Over
Temperature Range (Fig. 1, Note 1, 2, 4)
VKA = Vref, IK = 10mA
Ratio of Change in Reference Input Voltage
to Change in Cathode to Anode Voltage
IK = 10mA (Fig. 2),
∆VKA = 10V to Vref
∆VKA = 36V to 10V
Reference Input Current (Fig. 2)
IK = 10mA, R1 = 10k, R2 =
TA = 25oC
TA = Tlow to Thigh (Note 1)
Reference Input Current Deviation Over
Temperature Range (Fig. 2, Note 1, 4)
IK = 10mA, R1 = 10k, R2 =
Minimum Cathode Current for Regulation
VKA = Vref (Fig. 1)
Off - State Cathode Current (Fig. 3)
VKA = 36V, Vref = 0V
Dynamic Impedance (Fig. 1, Note 3)
VKA = Vref, ∆IK = 1.0mA to 100mA,
f < 1.0 kHz
Vref
∆Vref
∆Vref
∆VKA
Iref
∆Iref
Imin
Ioff
ZKA
TL431AI
Min Typ Max
2.47 2.495 2.52
2.44
---
2.55
---
7.0
30
---
-1.4
-2.7
---
-1.0
-2.0
---
1.8
4.0
---
---
6.5
---
0.8
2.5
---
0.5
1.0
---
260 1000
---
0.22
0.5
TL431AC
Min Typ Max
2.47
2.453
---
2.495
---
3.0
2.52
2.537
17
---
-1.4
-2.7
---
-1.0
-2.0
---
1.8
4.0
---
---
5.2
---
0.4
1.2
---
0.5
1.0
---
260
1000
---
0.22
0.5
TL431B
Min Typ Max
2.483
2.475
---
2.495
2.495
3.0
2.507
2.515
17
---
-1.4
-2.7
---
-1.0
-2.0
---
1.1
2.0
---
---
4.0
---
0.4
1.2
---
0.5
1.0
---
230
500
---
0.14
0.3
Unit
V
mV
mV/V
µA
µA
mA
nA
Ω
9-3
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