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UPC1945 Datasheet(PDF) 6 Page - NEC

Part No. UPC1945
Description  ADJUSTABLE PRECISION SHUNT REGULATORS
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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UPC1945 Datasheet(HTML) 6 Page - NEC

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Data Sheet G14875EJ2V0DS
6
µPC1945
TYPICAL CHRACTERISTICS (Unless otherwise specified, TA = 25
°C Reference Values)
−25
0
25
50
−30
−20
−10
0
10
30
20
0
0.2
0.4
0.6
0.8
1.0
100
75
125
0
20
40
60
80
100
25
75
100
125
50
695
°C/W
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
2
4
6
8
10
12
14
16
0.2
0.4
0.6
0.8
1.0
1.2
1.4
IK = 2 mA
VREF = VCC = VK
CKA = 100 pF
−25
0
25
50
0
2.0
1.0
4.0
3.0
100
75
125
VREF = VCC = VK
CKA = 100 pF
VREF = VCC = VK
CKA = 100 pF
−1
−2
−3
−4
−5
0
−0.8 −0.7 −0.6 −0.5 −0.4 −0.3 −0.2 −0.1
0
VREF = VCC = VK
CKA = 100 pF
IK = 2 mA
VREF = VCC = VK
CKA = 100 pF
R1 = 10 k
Ω, R2 = ∞
PT vs TA
TA - Operating Ambient Temperature -
°C
VK - Cathode Voltage - V
IK vs VK ( I )
TA - Operating Ambient Temperature -
°C
VREF vs TA
VK - Cathode Voltage - V
IK vs VK (II)
VK - Cathode Voltage - V
IK vs VK (III)
TA - Operating Ambient Temperature -
°C
IREF vs TA


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