Date: 11th July 2011
Isolated 15A 48V DC/DC converters meets
DOSA standards
Murata Power Solutions today announced the UEE
series of fully isolated, open frame DC/DC converters. Designed
specifically for high volume cost sensitive telecom, networking,
and instrumentation applications. These modules offer typically
up to 90% efficiency, provide a single 3.3 VDC output and
measure just 58.4 x 22.9 10.16 mm (2.3 x 0.9 x 0.4 inches).
This family meets all the mechanical and electrical requirements
of the industry standard DOSA compliant 1/8th brick package.
Complying with the worldwide requirements for telecommunications
network voltage (TNV) applications, they have a nominal input
voltage of 48 VDC and can accommodate a wide input range from
36 - 75 VDC.
There are two models in the series. The UEE-3.3/15-D48
offers a 15 Amp output and the UEE-3.3/30-D48 a 30 Amp output.
Both fit within the industry standard DOSA Eighth "brick"
package. Mounting options include through-hole pin or surface
mount. A baseplate option is available for the 30 Amp through-hole
model.
Designed to operate in a wide range of applications and
environments, the UEE series can operate from - 40 to +
85 degrees C in telecommunications equipment when forced
air cooling is applied. An output trim function allows the
output to be adjusted +/- 10% of Vout Nominal for voltage
margining and to compensate for voltage drops within some
applications. A Vout Sense function can also compensate
for PCB losses.
An On/Off control input allows the application to enable
or disable the output in order to sequence startup and shutdown
if required. Use of positive or negative logic options for
this control are available and can be specified at the time
of order. Other protection features include input under-voltage
lockout, output short circuit protection, thermal shutdown,
output short circuit protection, and 2,250 VDC (BASIC) insulation
that comply with the requirements for PoE (Power Over Ethernet)
applications.
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