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TL1431ZT 数据表(PDF) 4 Page - STMicroelectronics

部件名 TL1431ZT
功能描述  Programmable voltage reference
Download  16 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TL1431ZT 数据表(HTML) 4 Page - STMicroelectronics

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Electrical characteristics
TL1431
4/16
3
Electrical characteristics
Table 3.
Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
TL1431C
TL1431AC
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Vref
Reference input voltage - see Figure 4
VKA = Vref , Ik = 10 mA
2.490 2.500 2.510 2.493 2.500 2.507
V
ΔVref
Reference input voltage deviation over
temperature range (1) - see Figure 4
VKA = Vref, Ik = 10 mA, Tmin ≤ Tamb ≤ Tmax
320
3
20
mV
Temperature coefficient of reference input
voltage(2)
VKA = Vref, Ik = 10 mA, Tmin ≤Tamb ≤ Tmax
±13
±90
±13
±90
ppm/°C
Ratio of change in reference input voltage to
change in cathode to anode voltage - see
Figure 5
Ik = 10mA - ΔVKA = 36V to 3V
-2
-1.1
-2
-1.1
mV/V
Iref
Reference input current
Ik = 10mA, R1 = 10kΩ, R2 = ∞
Tmin ≤ Tamb ≤ Tmax
1.5
2.5
3
1.5
2.5
3
µA
ΔIref
Reference input current deviation over
temperature range
Ik = 10mA, R1 = 10kΩ, R2 =∞, Tmin ≤ Tamb ≤ Tmax
0.2
1.2
0.2
1.2
µA
Imin
Minimum cathode current for regulation - Figure 4
VKA = Vref
0.5
1
0.5
0.6
mA
Ioff
Off-state cathode current - see Figure 6
180
500
180
500
nA
⏐ ZKA
Dynamic impedance (3)
VKA = Vref , ΔIk = 1 to100mA, f ≤ 1kHz
0.20.5
0.20.5
Ω
1.
See Reference input voltage deviation over temperature range in Section 4: Parameter definitions on page 9.
2.
See Temperature coefficient of reference input voltage in Section 4: Parameter definitions on page 9.
3.
See Dynamic impedance in Section 4: Parameter definitions on page 9.
ΔVref
ΔT
----------------
ΔVref
ΔVka
----------------


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