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TL431ZAP Folha de dados(PDF) 3 Page - IK Semicon Co., Ltd

Nome de Peças TL431ZAP
Descrição Electrónicos  Programmable Precision Reference
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Fabricante Electrônico  IKSEMICON [IK Semicon Co., Ltd]
Página de início  http://www.iksemi.com/en/index.html
Logo IKSEMICON - IK Semicon Co., Ltd

TL431ZAP Folha de dados(HTML) 3 Page - IK Semicon Co., Ltd

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TL431Z
2011, January, rev. 03
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
TL431Z (2%)
TL431Z-A (1%)
TL431Z-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
V
V
REF
KA
∆V
KA = 10V-VREF
∆V
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
0.17
0.9
Dynamic Impedance
ZKA
IK = 10mA to 100 mA , f ≤
1.0KHz
0.27
0.5
Note :
1. The deviation parameter
∆Vref is defined as the difference between the maximum and minimum values obtained over
the full operating ambient temperature range that applies
The average temperature coefficient of the reference input voltage, aVref is defined as:
αVref can be positive or negative depending on whether Vref Min or Vref Max occurs at the lower ambient temperature.
(Refer to Figure 6.)
2. The dynamic impedance ZKA is defined as
When the device is programmed with two external resistors, R1 and R2, (refer to Figure 2) the total dynamic impedance
of the circuit is defined as:


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