LV12S24-150 Datasheet, PDF (6/15 Pages) Wall Industries,Inc. – Low Voltage DC-DC Converter 10-36 Vdc Input 24Vdc Output at 6.25A Half-Brick Package

Rev. D
TECHNICAL DATASHEET
LV12S24-150
Output Voltage Trim: (24V, 26V, and 28V Models)
The output is adjustable +/–10% of rated output voltage. To trim the output voltage up, place the trim resistor
between the Trim and –Rs pins (Figure 5). To trim the output voltage down, 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).
RTH
=
Vo
Vref
−Vref _−
Vref
− R lim
RH
RL
(in Kohms)
RTL
=
Vo − Vref
Vref _− Vo − Vref
− R lim
RL
RH
(in Kohms)
Figure 4: Trim Down
Figure 5: Trim Up
+V_out
+Rs
Pins Facing Down Trim
RTL
R_load
+V_out
+Rs
Pins Facing Down _Trim
-Rs
-V_out
-Rs
-V_out
RTH
R_load
Table 2: Trim Equations for LV Series (24V, 26V, and 28V Models)
Vonom Vref RH RL Rlim RTH to -Rs
24.000 2.495 22.00 2.55 8.25 RTL to +Rs
Percent
Trim
1%
2%
3%
4%
5%
6%
7%
8%
9%
10%
Trim Low
Vo RTL
23.760 1787.71
23.520 915.94
23.280 609.27
23.040 452.73
22.800 357.76
22.560 294.00
22.320 248.23
22.080 213.79
21.840 186.93
21.600 165.40
Trim High
Vo RTH
24.240 241.81 All in Kohms
24.480 111.20
24.720 70.22
24.960 50.17
25.200 38.29
25.440 30.42
25.680 24.83
25.920 20.65
26.160 17.41
26.400 14.82
Note that while decreasing the output voltage, the
maximum output current still remains at 6.25A, 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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