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参数资料
型号： LM431ACZUSPCA
厂商： NXP SEMICONDUCTORS
元件分类： 基准电压源/电流源
英文描述： 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.495 V, PBCY3
封装： PLASTIC, SOT-54, TO-92, 3 PIN
文件页数： 11/16页
文件大小： 189K
代理商： LM431ACZUSPCA
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 = 10k, R2 = ∞
2
4
2
4
A
IREF(dev)
Deviation of reference input
current over full temperature
range3
Fig. 4
IK = 10mA, R1 = 10k, R2 = ∞,
Tamb = full range2
0.8
1.2
0.4
1.2
A
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
A
| 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 = 10k, R2 = ∞
2
4
2
4
A
IREF(dev)
Deviation of reference input
current over full temperature
range3
Fig. 4
IK = 10mA, R1 = 10k, R2 = ∞,
Tamb = full range2
0.8
2.5
0.8
2.5
A
IMIN
Minimum cathode current
for regulation
Fig. 3
VKA = VREF
0.4
0.7
0.4
1
A
IOFF
Off-state cathode current
Fig. 5
VKA = 36V, VREF = 0
0.1
0.5
0.1
1
A
| 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.
相关PDF资料
PDF描述
TL431ACLPUSPCT 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, PBCY3
TL431CLPUSPCF 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, PBCY3
TL431CLPUSPCT 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, PBCY3
TL431ACLPUSPCF 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, PBCY3
TL431ILPUSPCF 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, PBCY3
相关代理商/技术参数
参数描述
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