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KA431SAMF2TF 데이터 시트보기 (PDF) - Fairchild Semiconductor

부품명KA431SAMF2TF Fairchild
Fairchild Semiconductor Fairchild
상세내역Programmable Shunt Regulator
KA431SAMF2TF Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
Electrical Characteristics
Values are at TA = 25°C unless otherwise noted.
Symbol
Parameter
Conditions
KA431S
KA431SA
KA431SL
Unit
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
VREF
ΔVREF/ΔT
ΔVREF/ΔVKA
Reference Input
Voltage
Deviation of
Reference
Input Voltage
Over-
Temperature
Ratio of Change in
Reference Input
Voltage
to the Change in
Cathode Voltage
VKA = VREF,
IKA = 10 mA
2.450 2.500 2.550 2.470 2.495 2.520 2.482 2.495 2.508
VKA = VREF,
IKA = 10 mA,
TMIN TA TMAX
4.5 17.0
4.5 17.0
4.5 17.0
IKA =
10 mA
ΔVKA = 10
V - VREF
ΔVKA = 36
V - 10 V
-1.0 -2.7
-0.5 -2.0
-1.0 -2.7
-0.5 -2.0
-1.0 -2.7
-0.5 -2.0
V
mV
mV/V
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-
VKA = VREF
rent for Regulation
0.45 1.00
0.45 1.00
0.45 1.00 mA
IKA(OFF)
ZKA
Note:
Off - Stage
Cathode
Current
Dynamic
Impedance
VKA = 36 V,
VREF = 0
VKA = VREF,
IKA = 1 to 100 mA,
f 1.0 kHz
0.05 1.00
0.15 0.50
0.05 1.00
0.15 0.50
0.05 1.00 μA
0.15 0.50 Ω
1. TMIN = -40°C, TMAX = +85°C
© 2011 Fairchild Semiconductor Corporation
KA431S / KA431SA / KA431SL Rev. 1.1.0
4
www.fairchildsemi.com
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Description
The KA431S / KA431SA / KA431SL are three-terminal adjustable regulator series with a guaranteed thermal stability over applicable temperature ranges. The output voltage can be set to any value between VREF(approximately 2.5 V) and 36 V with two external resistors. These devices have a typical dynamic output impedance of 0.2 Ω. Active output circuitry provides a sharp turn on characteristic, making these devices excellent replacement for Zener diodes in many applications.

Features
• Programmable Output Voltage to 36 V
• Low Dynamic Output Impedance 0.2 Ω(Typical)
• Sink Current Capability: 1.0 to 100 mA
• Equivalent Full-Range Temperature Coefficient of 50 ppm/°C (Typical)
• Temperature Compensated for Operation Over Full Rated Operating Temperature Range
• Low Output Noise Voltage
• Fast Turn-on Response

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