Datasheet

Application Note
Created by Traco Electronic AG Arp. www.tracopower.com Date: January 4
th
, 2011 / Rev.: 1.4 / Page 39 / 44
20W, Single and Dual Output
Output Voltage Adjustment
Output voltage set point adjustment allows the user to increase or decrease the output voltage set point of a module. This is
accomplished by connecting an external resistor between the TRIM pin and either the +V
out
pin or -V
out
pin. With an external
resistor between the TRIM and -V
out
pin, the output voltage set point increases. With an external resistor between the TRIM and
+V
out
pin, the output voltage set point decreases.
TRIM TABLE
TEN 20-xx10 WIN
Trim up (%) 1 2 3 4 5 6 7 8 9 10
V
OUT
(Volts) = 3.333 3.366 3.399 3.432 3.465 3.498 3.531 3.564 3.597 3.630
R
U
(K) =
57.930 26.165 15.577 10.283 7.106 4.988 3.476 2.341 1.459 0.753
Trim down (%) 1 2 3 4 5 6 7 8 9 10
V
OUT
(Volts) = 3.267 3.234 3.201 3.168 3.135 3.102 3.069 3.036 3.003 2.970
R
D
(K) =
69.470 31.235 18.490 12.117 8.294 5.745 3.924 2.559 1.497 0.647
TEN 20-xx11 WIN
Trim up (%) 1 2 3 4 5 6 7 8 9 10
V
OUT
(Volts) = 5.050 5.100 5.150 5.200 5.250 5.300 5.350 5.400 5.450 5.500
R
U
(K) =
36.570 16.580 9.917 6.585 4.586 3.253 2.302 1.588 1.032 0.588
Trim down (%) 1 2 3 4 5 6 7 8 9 10
V
OUT
(Volts) = 4.950 4.900 4.850 4.800 4.750 4.700 4.650 4.600 4.550 4.500
R
D
(K) =
45.533 20.612 12.306 8.152 5.660 3.999 2.812 1.922 1.230 0.676
TEN 20-xx12 WIN
Trim up (%) 1 2 3 4 5 6 7 8 9 10
V
OUT
(Volts) = 12.120 12.240 12.360 12.480 12.600 12.720 12.840 12.960 13.080 13.200
R
U
(K) =
367.908 165.954 98.636 64.977 44.782 31.318 21.701 14.488 8.879 4.391
Trim down (%) 1 2 3 4 5 6 7 8 9 10
V
OUT
(Volts) = 11.880 11.760 11.640 11.520 11.400 11.280 11.160 11.040 10.920 10.800
R
D
(K) =
460.992 207.946 123.597 81.423 56.118 39.249 27.199 18.162 11.132 5.509
TEN 20-xx13 WIN
Trim up (%) 1 2 3 4 5 6 7 8 9 10
V
OUT
(Volts) = 15.150 15.300 15.450 15.600 15.750 15.900 16.050 16.200 16.350 16.500
R
U
(K) =
404.184 180.592 106.061 68.796 46.437 31.531 20.883 12.898 6.687 1.718
Trim down (%) 1 2 3 4 5 6 7 8 9 10
V
OUT
(Volts) = 14.850 14.700 14.550 14.400 14.250 14.100 13.950 13.800 13.650 13.500
R
D
(K) =
499.816 223.408 131.272 85.204 57.563 39.136 25.974 16.102 8.424 2.282