Application Notes continued
PT4120/4140 Series
Table 2
DC/DC CONVERTER SERIES ADJUSTMENT RESISTOR VALUES
Series Pt #
48V Bus
24V Bus
Vo(nom)
Va(req’d)
PT4126
PT4146
1.5Vdc
PT4127
PT4147
1.8Vdc
PT4128
PT4148
2.5Vdc
PT4121
PT4141
3.3Vdc
PT4122
PT4142
5.0Vdc
PT4123
PT4143
12.0Vdc
PT4124
PT4144
15.0Vdc
Va(req’d)
Va(req’d)
1.35
1.4
1.45
1.5
1.55
1.6
1.65
1.7
1.75
1.8
1.85
1.9
1.95
2.25
2.3
2.35
2.4
2.45
2.5
2.55
2.6
2.65
2.7
2.75
2.95
3.0
3.05
3.1
3.15
3.2
3.25
3.3
(2.8)kΩ
(53.2)kΩ
(204.0)kΩ
4.5
4.55
4.6
4.65
4.7
4.75
4.8
4.85
4.9
4.95
5.0
5.05
5.1
5.15
5.2
(12.6)kΩ
(40.3)kΩ
(75.0)kΩ
(120.0)kΩ
(179.0)kΩ
(262.0)kΩ
(387.0)kΩ
(595.0)kΩ
(1.01)MΩ
10.8
11.0
11.2
11.4
11.6
11.8
12.0
12.2
12.4
12.6
12.8
13.0
13.2
13.5
13.6
13.8
14.0
14.2
14.4
14.6
14.8
15.0
15.2
15.4
15.6
15.8
16.0
16.5
(276.0)kΩ
(365.0)kΩ
(497.0)kΩ
(719.0)kΩ
(1.16)MΩ
1.3MΩ
627.0kΩ
404.0kΩ
(51.7)kΩ
(161.0)kΩ
(489.0)kΩ
588.0kΩ
239.0kΩ
123.0kΩ
64.6kΩ
29.7kΩ
6.4kΩ
1.28MΩ
587.0kΩ
355.0kΩ
1.06MΩ
645.0kΩ
437.0kΩ
312.0kΩ
229.0kΩ
169.0kΩ
125.0kΩ
90.2kΩ
(26.5)kΩ
(92.9)kΩ
(203.0)kΩ
(425.0)kΩ
(1.09)MΩ
(312.0)kΩ
(345.0)kΩ
(427.0)kΩ
(542.0)kΩ
(713.0)kΩ
(1.0)MΩ
5.25
5.3
5.35
5.4
5.45
5.5
1.09MΩ
450.0kΩ
237.0kΩ
131.0kΩ
67.7kΩ
(1.57)MΩ
62.4kΩ
597.0kΩ
253.0kΩ
138.0kΩ
81.0kΩ
46.6kΩ
0.8kΩ
(90.7)kΩ
(146.0)kΩ
(224.0)kΩ
(341.0)kΩ
(536.0)kΩ
(926.0)kΩ
(2.09)MΩ
3.35
3.4
3.45
3.5
3.55
3.6
1.19MΩ
502.0kΩ
272.0kΩ
158.0kΩ
88.7kΩ
42.7kΩ
3.65
9.9kΩ
R1 = (Blue)
R2 = Black
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ETC [ ETC ]
