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TL431LS 数据表(PDF) 2 Page - IK Semicon Co., Ltd

部件名 TL431LS
功能描述  Programmable Precision Reference
Download  12 Pages
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制造商  IKSEMICON [IK Semicon Co., Ltd]
网页  http://www.iksemi.com/en/index.html
标志 IKSEMICON - IK Semicon Co., Ltd

TL431LS 数据表(HTML) 2 Page - IK Semicon Co., Ltd

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TL431
RECOMMENDED OPERATING CONDITIONS
Characteristic
Symbol
Test Condition
Min
Typ
Max
Unit
Cathode Voltage
VKA
VREF
40
V
Cathode Current
IK
0.5
100
mA
ELECTRICAL CHARACTERISTICS
(Ta = 25
oC, V
KA = VREF, IK = 10mA unless otherwise specified)
Characteristic
Symbol
Test Condition
Min
Typ
Max
Unit
Reference Input Voltage
VREF
VKA = VREF, IK = 10mA
TL431 (2%)
TL431-A (1%)
TL431-C (0.5%)
2.440
2.470
2.482
2.495
2.495
2.495
2.550
2.520
2.508
V
Deviation of Reference Input
Voltage Over Full Temperature
Range
VREF(dev)
Tmin ≤ Ta ≤ Tmax
3
17
MV
Ratio of Change in Reference Input
Voltage to the Change in Cathode
Voltage
Δ
Δ
V
V
REF
KA
ΔV
KA = 10V-VREF
ΔV
KA = 36V- 10V
-1.4
-1.0
-2.7
-2.0
mV/V
Reference Input Current
IREF
R1 = 10KΩ, R2 = ∞
1.8
4
Deviation of Reference Input
Current Over Full Temperature
Range
IREF(dev)
R1 = 10KΩ, R2 = ∞
0.4
1.2
Minimum Cathode Current for
Regulation
IK(min)
0.25
0.5
mA
Off-State Cathode Current
IK(off)
VKA = 40 V, VREF = 0
0.26
0.9
Dynamic Impedance
ZKA
IK = 10mA to 100 mA , f ≤ 1.0KHz
0.22
0.5
Ω
Rev. 00
TEST CIRCUITS
Figure 1. Test Circuit for VKA = VREF
Figure 2. Test Circuit for VKA ≥ VREF
Figure 3. Test Circuit for I off
IK(OFF)
BT432
INPUT
VKA
TL431
TL431
TL431


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