NCP431A(2016) Просмотр технического описания (PDF) - ON Semiconductor
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NCP431A Datasheet PDF : 17 Pages
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NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series
ELECTRICAL CHARACTERISTICS (TA = 25°C, unless otherwise noted.)
NCP431BC
NCP432BC
NCP431BI
NCP432BI
NCP/SC431BV
NCP/SC432BV
Symbol
Characteristic
Vref Reference Input Voltage
VKA = Vref, IK = 1 mA
TA = 25°C
TA = Tlow to Thigh (Figure 3, Note 7)
DVrefT
Reference Input Voltage Deviation Over Tem-
perature Range (Figure 3, Notes 8, 9)
VKA= Vref, IK = 1 mA
DVref
DVKA
Ratio of Change in Reference Input Voltage to
Change in Cathode to Anode Voltage
IK = 1 mA (Figure 4),
DVKA = 10 V to Vref
DVKA = 36 V to 10 V
Iref Reference Input Current (Figure 4)
IK = 1 mA, R1 = 220 k, R2 = R
TA = −40°C to +125°C
DIrefT
Reference Input Current Deviation Over Tem-
perature Range (Figure 4, Note 8)
IK = 1 mA, R1 = 10 k, R2 = R
Imin Minimum Cathode Current For Regulation
VKA = Vref (Figure 3)
Ioff Off−State Cathode Current (Figure 5)
VKA = 36 V, Vref = 0 V
|ZKA|
Dynamic Impedance (Figure 3, Note 10)
VKA = Vref, DIK = 1.0 mA to 100 mA
f v 1.0 kHz
Min Typ Max
Min Typ Max
Min Typ Max Unit
V
2.4875 2.500 2.5125 2.4875 2.500 2.5125 2.4875 2.500 2.5125
2.4875 2.500 2.5125 2.4775 2.500 2.5125 2.4725 2.500 2.5125
−
−
−
−
−
− 5.0 10
−
1−
−
10 15 mV
−
15
− −1.85 −3.1
− −0.80 −1.8
− 81 190
− −1.85 −3.1
− −0.80 −1.8
− 81 190
mV/
V
− −1.85 −3.1
− −0.80 −1.8
nA
−
81 190
− 22 55
− 22 55
nA
−
22 55
− 40 60
−
40 60
−
40 60 mA
− 180 1000 − 180 1000 − 180 1000 nA
− 0.22 0.5
− 0.22 0.5
− 0.22 0.5 W
7. Tlow = −40°C for NCP431BI, NCP431BV, NCP432BI, NCP432BV, SC431B, SC432B
= 0°C for NCP431BC, NCP432BC
Thigh = 70°C for NCP431BC, NCP432BC
= 85°C for NCP431BI, NCP432BI
= 125°C for NCP431BV, NCP432BV, SC431BV, SC432BV
8. Guaranteed by design
9. The deviation parameter DVrefT is defined as the difference between the maximum and minimum values obtained over the full operating
ambient temperature range that applies.
The average temperature coefficient of the reference input voltage, Vref is defined as:
ǒ Ǔ DVref
ppm
Vref@25° C
Vref ° C +
DTA
106
+
DVref
106
DTAǒVref@25° CǓ
aVref can be positive or negative depending on whether Vref Min or Vref Max occurs at the lower ambient temperature.
Example: DVrefT = 17 mV and slope is positive
Vref = 2.5 V, DTA = 165°C (from −40°C to +125°C)
aVref
+
0.017 @ 106
165 @ 2.5
+
41.2
ppmń°
C
10. The dynamic impedance ZKA is defined as: (|ZKA| = (DVKA/DIK). When the device is programmed with two external resistors, R1 and R2,
the total dynamic impedance of the circuit is defined as: |ZKA’| [ |ZKA| (1 + (R1/R2))
11. SC431BVSNT1G, SC432BVSNT1G − Tlow = −40°C, Thigh = 125°C. Guaranteed by design. SC Prefix for Automotive and Other Applica-
tions Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable.
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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