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TL431CP Datasheet(PDF) 4 Page - NXP Semiconductors

No. de pieza TL431CP
Descripción Electrónicos  Adjustable precision shunt regulators
Download  16 Pages
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Fabricante Electrónico  PHILIPS [NXP Semiconductors]
Página de inicio  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TL431CP Datasheet(HTML) 4 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
TL431C, TL431AC, TL431I,
TL431AI, LM431AC
Adjustable precision shunt regulators
1997 Feb 25
4
DC ELECTRICAL CHARACTERISTICS
25
°C free-air temperature, unless otherwise stated.
TEST
LIMITS
SYMBOL
PARAMETER
TEST
CKT
TEST CONDITIONS
TL431AC
TL431C/LM431AC
UNIT
CKT
MIN
TYP
MAX
MIN
TYP
MAX
VREF
Reference input voltage
Fig. 3
VKA = VREF, IK = 10mA
2470
2495
2520
2440
2495
2550
mV
VREF(dev)
Deviation of reference input
voltage over full
temperature range3
Fig. 3
VKA = VREF, IK = 10mA,
Tamb = full range2
4
15
4
17
mV
DV
REF
Ratio of change in reference
input voltage to the change
Fig 4
I = 10mA
∆VKA = 10V – VREF
–1.4
–2.7
–1.4
–2.7
mV/V
REF
DV
KA
in ut voltage to the change
in cathode voltage
Fig. 4
IK = 10mA
∆VKA = 36V – 10V
–1
–2
–1
–2
mV/V
IREF
Reference input current
Fig. 4
IK = 10mA, R1 = 10kΩ, R2 = ∞
2
4
2
4
µA
IREF(dev)
Deviation of reference input
current over full temperature
range3
Fig. 4
IK = 10mA, R1 = 10kΩ, R2 = ∞,
Tamb = full range2
0.8
1.2
0.4
1.2
µA
IMIN
Minimum cathode current
for regulation
Fig. 3
VKA = VREF
0.4
0.6
0.4
1
mA
IOFF
Off-state cathode current
Fig. 5
VKA = 36V, VREF = 0
0.1
0.5
0.1
1
µA
| ZKA |
Dynamic impedance4
Fig. 3
VKA = VREF, IK = 1mA to 100mA,
f
≤ 1kHz
0.2
0.5
0.2
0.5
25
°C free-air temperature, unless otherwise stated.
TEST
LIMITS
SYMBOL
PARAMETER
TEST
CKT
TEST CONDITIONS
TL431AI
TL431I
UNIT
CKT
MIN
TYP
MAX
MIN
TYP
MAX
VREF
Reference input voltage
Fig. 3
VKA = VREF, IK = 10mA
2470
2495
2520
2440
2495
2550
mV
VREF(dev)
Deviation of reference input
voltage over full
temperature range3
Fig. 3
VKA = VREF, IK = 10mA,
Tamb = full range2
5
25
5
30
mV
DV
REF
Ratio of change in reference
input voltage to the change
Fig 4
I = 10mA
∆VKA = 10V – VREF
–1.4
–2.7
–1.4
–2.7
mV/V
REF
DV
KA
in ut voltage to the change
in cathode voltage
Fig. 4
IK = 10mA
∆VKA = 36V – 10V
–1
–2
–1
–2
mV/V
IREF
Reference input current
Fig. 4
IK = 10mA, R1 = 10kΩ, R2 = ∞
2
4
2
4
µA
IREF(dev)
Deviation of reference input
current over full temperature
range3
Fig. 4
IK = 10mA, R1 = 10kΩ, R2 = ∞,
Tamb = full range2
0.8
2.5
0.8
2.5
µA
IMIN
Minimum cathode current
for regulation
Fig. 3
VKA = VREF
0.4
0.7
0.4
1
µA
IOFF
Off-state cathode current
Fig. 5
VKA = 36V, VREF = 0
0.1
0.5
0.1
1
µA
| ZKA |
Dynamic impedance4
Fig. 3
VKA = VREF, IK = 1mA to 100mA,
f
≤ 1kHz
0.2
0.5
0.2
0.5
NOTES:
2. Full temperature range is –40
°C to +85°C for the TL431I and TL431AI, and 0°C to +70°C for the TL431C and TL431AC.
3. The deviation parameters VREF(dev) and IREF(dev) are defined as the differences between the maximum and minimum values obtained over
the rated termperature range. The average full-range temperature coefficient of the reference input voltage,
αVREF, is defined as:
|
aV
REF |
ppm
deg C
+
V
REF(dev)
V
REF
at 25oC
@ 106
DT
amb
VREF(dev)
Max VREF
Min VREF
∆Tamb
where
∆Tamb is the rated operating free-air temperature range of the device.


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