LV12S26-150 Datasheet, PDF (13/15 Pages) Wall Industries,Inc. – Low Voltage DC-DC Converter 10-36 Vdc Input 26Vdc Output at 5.8A Half-Brick Package

Rev. C
TECHNICAL DATASHEET
LV12S26-150
TEST SETUP:
The LV12S26-150 specifications are tested with the following configurations:
Regulation and Efficiency Setup
To ensure that accurate measurement are taken, the voltage measurements are taken directly at the terminal of the
module. This minimizes errors due to contact and trace lengths between the load and the output of the supply. The
following is a diagram of the test setup.
Figure 7: Regulation and Efficiency Probe Setup
R_trace R_contact +V_in
+V_out Rcontact
R_trace
V_in
V_out
R_load
R_trace R_contact
-V_in
R_contact
-V_out
R_trace
Output Ripple Voltage Setup
The module is tested with a 1uF ceramic capacitor in parallel with a 10uF tantalum capacitor across the output
terminals.
Figure 8: Ripple Voltage Probe Setup
SCOPE
PROBE
LV12S26-150
+V_out
-V_out
1 µF
10 µF _Ceramic
Tantalum
R_load
Input Reflected Ripple Current and Input Ripple Current Setup
The module is tested for input reflected ripple current (Irrc) and input ripple current (Irc). The input ripple voltage
is also measured at the pins with the following input filter. If there is a need to reduce input ripple current/voltage
then additional ceramic capacitors can be added to the input of the converter.
Low
Impedance
Source
Figure 9: Ripple Current Setup
Irrc
Irc
12 µH
6,800 µF 1 µF
electrolytic ceramic
capacitor capacitor
+V_in
-V_in
SCOPE
PROBE
LV12S26-150
(888) 597-WALL
www.wallindustries.com
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