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TL1431-EP 数据表(PDF) 5 Page - Texas Instruments

部件名 TL1431-EP
功能描述  TL1431-EP Precision-Programmable Reference
Download  23 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TL1431-EP 数据表(HTML) 5 Page - Texas Instruments

  TL1431-EP_15 Datasheet HTML 1Page - Texas Instruments TL1431-EP_15 Datasheet HTML 2Page - Texas Instruments TL1431-EP_15 Datasheet HTML 3Page - Texas Instruments TL1431-EP_15 Datasheet HTML 4Page - Texas Instruments TL1431-EP_15 Datasheet HTML 5Page - Texas Instruments TL1431-EP_15 Datasheet HTML 6Page - Texas Instruments TL1431-EP_15 Datasheet HTML 7Page - Texas Instruments TL1431-EP_15 Datasheet HTML 8Page - Texas Instruments TL1431-EP_15 Datasheet HTML 9Page - Texas Instruments Next Button
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background image
|z |
V
I
,
=
z
KA
1
R1
R2
=
(
)
+
zKA
VKA
IKA
=
V
I(ref)
α
where:
TA is the rated operating temperature range of the device.
Max VI(ref)
Min VI(ref)
TA
VI(dev)
V
I(ref)
ppm
°C
V
I(dev)
V
I(ref)
at 25
°C
106
T
A
|
|
α
( ) =
(
) ×
V
I(ref)
α
DVI(ref)
DVKA
rated temperature range. The average full-range temperature coefficient of the reference input voltage
is defined as:
is positive or negative, depending on whether minimum VI(ref) or maximum VI(ref), respectively, occurs at the lower temperature.
(3)
The output impedance is defined as:
, which is approximately equal to
.
TL1431-EP
www.ti.com
SLVS529D – APRIL 2004 – REVISED JANUARY 2015
7.6 Electrical Characteristics
at specified free-air temperature, IKA = 10 mA (unless otherwise noted)
TEST
PARAMETER
TEST CONDITIONS
TA
(1)
MIN
TYP
MAX
UNIT
CIRCUIT
25°C
2490
2500
2510
VI(ref)
Reference input voltage
VKA = VI(ref)
Figure 8
mV
Full range
2470
2530
Deviation of reference input
VI(dev)
voltage over full temperature
VKA = VI(ref)
Full range
Figure 8
17
mV
range(2)
Ratio of change in reference
input voltage to the change in
ΔVKA = 3 to 36 V
Full range
Figure 9
–1.1
–2
mV/V
cathode voltage
25°C
1.5
2.5
II(ref)
Reference input current
R1 = 10 k
Ω,
R2 =
Figure 9
μA
Full range
4
Deviation of reference input
II(dev)
current over full temperature
R1 = 10 k
Ω,
R2 =
Full range
Figure 9
0.5
μA
range(2)
Minimum cathode current for
Imin
VKA = VI(ref)
25°C
Figure 8
0.45
1
mA
regulation
25°C
0.18
0.5
Ioff
Off-state cathode current
VKA = 36 V,
VI(ref) = 0
Figure 10
μA
Full range
2
VKA = VI(ref), ƒ ≤ 1 kHz,
|zKA|
Output impedance(3)
25°C
Figure 8
0.2
0.4
IKA = 1 to 100 mA
(1)
Full range is –40°C to 125°C for Q-suffix devices; –55°C to 125°C for M-suffix devices.
(2)
The deviation parameters VI(dev) and II(dev) are defined as the differences between the maximum and minimum values obtained over the
When the device is operating with two external resistors (see Figure 9), the total dynamic impedance of the circuit is given by:
Copyright © 2004–2015, Texas Instruments Incorporated
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