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LM431B 数据表(PDF) 4 Page - ON Semiconductor

部件名 LM431B
功能描述  Programmable Shunt Regulator
PDF  13 Pages
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制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
标志 ONSEMI - ON Semiconductor

LM431B 数据表(HTML) 4 Page - ON Semiconductor

  LM431B Datasheet HTML 1Page - ON Semiconductor LM431B Datasheet HTML 2Page - ON Semiconductor LM431B Datasheet HTML 3Page - ON Semiconductor LM431B Datasheet HTML 4Page - ON Semiconductor LM431B Datasheet HTML 5Page - ON Semiconductor LM431B Datasheet HTML 6Page - ON Semiconductor LM431B Datasheet HTML 7Page - ON Semiconductor LM431B Datasheet HTML 8Page - ON Semiconductor LM431B Datasheet HTML 9Page - ON Semiconductor Next Button
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© 2003 Fairchild Semiconductor Corporation
www.fairchildsemi.com
LM431A / LM431B / LM431C Rev. 1.2.0
3
Electrical Characteristics
Values are at TA = 25°C unless otherwise noted.
Note:
1. LM431xC: TMIN = -25°C, TMAX = +85°C.
LM431xI: TMIN = -40°C, TMAX = +85°C.
Symbol
Parameter
Conditions
LM431A
LM431B
LM431C
Unit
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
VREF
Reference
Input Voltage
VKA = VREF,
IKA = 10 mA
2.450 2.500 2.550 2.470 2.495 2.520 2.482 2.495 2.508
V
ΔVREF/
ΔT
Deviation of
Reference
Input Voltage
Over-
Temperature
VKA = VREF,
IKA =10 mA
TMIN ≤ TA ≤ TMAX
(1)
4.5
17.0
4.5
17.0
4.5
17.0
mV
ΔVREF/
ΔVKA
Ratio of
Change in
Reference
Input Voltage
to the
Change in
Cathode
Voltage
IKA =
10 mA
ΔVKA =
10V-VREF
-1.0
-2.7
-1.0
-2.7
-1.0
-2.7
mV / V
ΔVKA =
36V-10V
-0.5
-2.0
-0.5
-2.0
-0.5
-2.0
IREF
Reference
Input Current
IKA = 10 mA,
R1 =10 kΩ, R2 = ∞
1.5
4.0
1.5
4.0
1.5
4.0
µA
ΔIREF /
ΔT
Deviation of
Reference
Input Current
Over Full
Temperature
Range
IKA = 10 mA,
R1 = 10 kΩ, R2 = ∞
TA = Full Range
0.4
1.2
0.4
1.2
0.4
1.2
µA
IKA(MIN)
Minimum
Cathode
Cur-rent for
Regulation
VKA = VREF
0.45
1.00
0.45
1.00
0.45
1.00
mA
IKA(OFF)
Off - Stage
Cathode
Current
VKA = 36 V,
VREF = 0
0.05
1.00
0.05
1.00
0.05
1.00
µA
ZKA
Dynamic
Impedance
VKA = VREF,
IKA =1 to 100 mA
f ≥ 1.0 kHz
0.15
0.50
0.15
0.50
0.15
0.50
Ω



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