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NCP432B Datasheet(PDF) 3 Page - ON Semiconductor

Part # NCP432B
Description  Programmable Precision References
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP432B Datasheet(HTML) 3 Page - ON Semiconductor

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NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series
www.onsemi.com
3
ELECTRICAL CHARACTERISTICS (TA = 25°C, unless otherwise noted.)
Symbol
Characteristic
NCP431AC
NCP431AI
NCP431AV/
SC431AV
Unit
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Vref
Reference Input Voltage
VKA = Vref, IK = 1 mA
TA = 25°C
TA = Tlow to Thigh (Figure 3, Note 2)
2.475
2.475
2.500
2.500
2.525
2.525
2.475
2.465
2.500
2.500
2.525
2.525
2.475
2.460
2.500
2.500
2.525
2.525
V
DVrefT
Reference Input Voltage Deviation Over Temperat-
ure Range (Figure 3, Notes 3, 4)
VKA= Vref, IK = 1 mA
5.0
10
10
15
mV
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
−1.85
−0.80
−3.1
−1.8
−1.85
−0.80
−3.1
−1.8
−1.85
−0.80
−3.1
−1.8
mV/
V
Iref
Reference Input Current (Figure 4)
IK = 1 mA, R1 = 220 k, R2 = R
TA = −40°C to +125°C
81
190
81
190
81
190
nA
DIrefT
Reference Input Current Deviation Over Temperat-
ure Range (Figure 4, Note 3)
IK = 1 mA, R1 = 10 k, R2 = R
22
55
22
55
22
55
nA
Imin
Minimum Cathode Current For Regulation
VKA = Vref (Figure 3)
4
0
60
4
0
60
4
0
60
mA
Ioff
Off−State Cathode Current (Figure 5)
VKA = 36 V, Vref = 0 V
180
1000
180
1000
180
1000
nA
|ZKA|
Dynamic Impedance (Figure 3, Note 5)
VKA = Vref, DIK = 1.0 mA to 100 mA
f
v 1.0 kHz
0.22
0.5
0.22
0.5
0.22
0.5
W
2. Tlow
= −40
°C for NCP431AI, NCP431AV, SC431AV
= 0
°C for NCP431AC
Thigh = 70°C for NCP431AC
= 85
°C for NCP431AI
= 125
°C for NCP431AV, SC431AV
3. Guaranteed by design
4. 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:
V
ref
ppm
° C
+
DV
ref
V
ref
@25
° C
106
DT
A
+
DV
ref
106
DT
A
V
ref
@25
° C
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)
aV
ref +
0.017
@ 106
165
@ 2.5
+ 41.2 ppm ° C
5. 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)).
6. SC431AVSNT1G − Tlow = −40°C, Thigh = 125°C. Guaranteed by design. SC Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable.


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