LV200 Datasheet, PDF (9/12 Pages) Wall Industries,Inc. – 200 Watt Half-Brick DC - DC Power Converters

Wall Industries, Inc.
Advanced Publication
LV200 SERIES
200 Watt Half-Brick DC/DC Power Converters
Remote ON/OFF
The converter has the ability to be remotely turned ON or OFF. The LV200 series is Active-High. Active-High means that a
logic high at the ON/OFF pin will enable the supply. With Active-High, if the ON/OFF pin is left floating, the supply will be
enabled.
Active High
Low Disables Converter
High Enables Converter
ON/OFF
+VIN
200K
0.1µF
2.5V
VCC
Low Enables Converter
High Disables Converter
-VIN
-VIN
LV200 Series Converter
Output Voltage Trim
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. To trim the output voltage up, place the trim resistor between the Trim and +Rs pins.
The value of the trim resistor with respect to the desired output voltage (Vo) can be derived from the following formulas.
Trim Up
RTH
=
R ₁^•
V_o
•
Vonom
U1
V_o - V_onom
-
R₁^• V_o
V_o - V_onom
-
R_lim
(in KΩ)
Trim Down
RTL =
R₁ ^• V_o
V_onom - V_o
-
R _lim
(in KΩ)
+V_out
+Rs
Trim
Pins Facing Down
-Rs
-V_out
RTH
R _load
+V_out
+Rs
Trim
Pins Facing Down
-Rs
-V_out
R _load
RTL
07/11/2013
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: [phone] • Toll Free: 888-597-9255 • Fax [phone]
website: www.wallindustries.com • e-mail: [e-mail]
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