RC431AM 데이터 시트보기 (PDF) - Fairchild Semiconductor
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RC431AM Datasheet PDF : 9 Pages
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PRODUCT SPECIFICATION
Dissipation Rating Table
Package
TO-92
SOT23-5
Power Rating
TA ≤ 25°C
775mW
150mW
Derating Factor
TA ≥ 25°C
6.2mW/OC
1.2mW/oC
RC0431A (RC431A)
Power Rating
TA = 70°C
496mW
96mW
Electrical Specifications
TA = 25°C (unless otherwise noted), at free-air
Symbol
Vref
Parameters
Reference Voltage
Vref (dev)
∆Vref
∆VKA
Iref
Vref deviation over full temperature
range (see note 2)
Ratio of Vref change in cathode
voltage change
Reference terminal current
Iref(dev)
IK(min)
Ioff
|ZKA|
Iref deviation over full temperature
range (see note 2)
Minimum cathode current for
regulation
Off-state cathode current
Dynamic impedance (see note 3)
Conditions
VKA = Vref, TA = 25°C
IK = 10mA,
TA = 0 to 70°C
VKA = Vref, IK = 10mA,
See note 2 and Figure 1.
IK = 10mA,
∆VKA = Vref to 6V.
See figure 2.
IK = 10mA,
R1 = 10KΩ, R2 = ∞
See figure 2.
IK = 10mA,
R1 = 10KΩ, R2 = ∞
See note 1 & figure 2.
VKA = Vref
See figure 1.
VKA = 6V, Vref = 0
See figure 3.
VKA = Vref, f ≤ 1KHz
IK = 0.1mA to 15mA,
See figure 1.
Min.
1.228
1.221
Typ.
1.24
Max. Units
1.252 V
1.259
4
12 mV
-1.5 -2.7 mV
V
0.15 0.5 µA
0.05 0.3 µA
55 80 µA
0.001 0.1 µA
0.25 0.4 Ω
Notes:
1. Functional operation under these conditions is not implied. Permanent damage may occur if the device is subjected to
conditions outside these ratings.
2. Full temperature range is 0°C to 70°C.
3. The deviation parameters Vref(dev) and Iref(dev) are defined as the differences between the maximum and minimum values
obtained over the rated temperature range. The average full-range temperature coefficient of the reference input voltage,
∞Vref, is defined as:
∞Vref
〈 ppm/°C〉
=
{----V----r--e---f--(--d---e---v---)---⁄--V----r--e---f---〈--T----A-----=------2---5----°--C----〉---}----×-----1----0---6-
∆TA
where ∆TA is the rated operating free-air temperature range of the device.
∞Vref can be positive or negative depending on whether minimum Vref or maximum Vref, respectively, occurs at the lower
temperature.
4. The dynamic impedance is defined as: ZKA= ∆VKA/ ∆IK
When the device is operating with two external resistors (see Figure 2), the total dynamic impedance of the circuit is given
by:
ZKA = ∆--∆---V-I- ≈ ZKA × 1 + RR-----12-
REV. 1.0.7 8/5/03
3
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