FAN431 Datasheet, PDF (3/10 Pages) Fairchild Semiconductor – Programmable Shunt Regulator

FAN431/FAN431A/FAN431L
Electrical Characteristics
(TA = +25°C, unless otherwise specified)
Parameter
Reference
Input Voltage
Deviation of
Reference
Input Voltage
Over-
Temperature
Ratio of
Change in
Reference
Input Voltage
to the Change
in Cathode
Voltage
Reference
Input Current
Deviation of
Reference
Input Current
Over Full
Temperature
Range
Minimum
Cathode
Current for
Regulation
Off -Stage
Cathode
Current
Dynamic
Impedance
Symbol
Conditions
VREF VKA=VREF, IKA=10mA
FAN431
FAN431A
FAN431L
Unit
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
2.450 2.500 2.550 2.470 2.495 2.520 2.482 2.495 2.508 V
∆VREF/ VKA=VREF, IKA=10mA
∆T
TMIN≤TA≤TMAX
- _{4.5 17}
- _{4.5 17} - _{4.5 17 mV}
∆VREF/ IKA
∆VKA =10mA
∆VKA=10V-
VREF
∆VKA=36V-
10V
IREF
IKA=10mA,
R1=10kΩ,R2=∞
IKA=10mA,
∆IREF/∆T
R1=10kΩ,R2=∞
TA =Full Range
- -1.0 -2.7 - -1.0 -2.7 - -1.0 -2.7
mV/V
- -0.5 -2.0 - -0.5 -2.0 - -0.5 -2.0
- 1.5 4
- 1.5 4
- 1.5 4 µA
-
0.4 1.2
-
0.4 1.2 ^-
0.4 1.2 µA
IKA(MIN) VKA=VREF
- 0.45 1.0 - 0.45 1.0 - 0.45 1.0 mA
IKA(OFF) VKA=36V, VREF=0
- 0.05 1.0
ZKA
VKA=VREF,
IKA=1 to 100mA ,f ≥1.0kHz
-
0.15 0.5
- 0.05 1.0 - 0.05 1.0 µA
- 0.15 0.5 - 0.15 0.5 Ω
Note1
TMIN = -25°C, TMAX = +85°C
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