LV12S15-150 Datasheet, PDF (6/15 Pages) Wall Industries,Inc. – Low Voltage DC-DC Converter 10-36 Vdc Input 15Vdc Output at 10A Half-Brick Package

Rev. D
TECHNICAL DATASHEET
LV12S15-150
Output Voltage Trim: (5V, 12V, 15V, and 20V Models)
The output is adjustable +/–10% of rated output voltage. To trim the output voltage down, place the trim resistor
between the Trim and -Rs pins (Figure 5). To trim the output voltage up, place the trim resistor between the Trim
and +Rs pins (Figure 4).
The value of the trim resistor with respect to the desired output voltage (Vo) can be derived from the following
formulas, or looked up on the trim table (Table 2).
R1 ⋅Vo ⋅ ^Vonom
RTH =
U1 _−
R1 ⋅Vo
− R lim
Vo −Vonom Vo −Vonom
(in Kohms)
RTL = ^R1⋅Vo − R lim
Vonom − Vo
(in Kohms)
Figure 4: Trim Up
+V_out
+Rs
Pins Facing Down Trim
-Rs
-V_out
RTH
Figure 5: Trim Down
+V_out
+Rs
R_load
Pins Facing Down _Trim
-Rs
-V_out
RTL
R_load
Table 2: Trim Equations for LV Series (5V, 12V, 15V, and 20V Models)
Vonom
15.000
U1 R1 Rlim RTH to +Rs
2.500 5.11 5.11 RTL to -Rs
Percent
Trim
1%
2%
3%
4%
5%
6%
7%
8%
9%
10%
Trim Low
Vo RTL
14.850 500.78
14.700 245.28
14.550 160.11
14.400 117.53
14.250 91.98
14.100 74.95
13.950 62.78
13.800 53.66
13.650 46.56
13.500 40.88
Trim High
Vo RTH
15.150 2575.44 All in Kohms
15.300 1297.94
15.450 872.11
15.600 659.19
15.750 531.44
15.900 446.27
16.050 385.44
16.200 339.81
16.350 304.33
16.500 275.94
Note that while decreasing the output voltage, the
maximum output current still remains at 10A, and
while increasing the output voltage, the output
current is reduced to maintain a total output
power at 150 W.
(888) 597-WALL
www.wallindustries.com
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