GMDW8V08R Datasheet, PDF (4/7 Pages) Galaxy Power, Inc. – DORADO MV 24V or 48V Input, 8.0V, 12.0V DC, 8A Output 15.0V DC, 6A Output

Application Notes
Output Over Voltage Protection:
The output voltage is constantly monitored by the
microprocessor and a redundant secondary-side circuit
that is set to a higher trip point than the microprocessor
protection. If the output voltage exceeds the over-
voltage specification, the microprocessor will restart
every 4 seconds and limit voltage with a separate
reference circuit. This advanced feature prevents the
converter from damaging the load if there is a converter
failure or application error.
Trim-down
Thermal Shutdown:
The printed circuit board temperature is measured
using a semiconductor sensor. If the maximum rated
temperature is exceeded, the converter is turned off. It
will then restart every 4 seconds.
Remote Sense:
The output voltage is regulated at the point where the
sense pins connect to the power output pins. Total sense
compensation should not exceed 1V.
Trim-down (%)
{ } ^{RTRIM-DOWN =}
100
∆% ^{– 2}
5.11kΩ
Trim-up (for 3.3V)
Safety:
An external input fuse must always be used to meet
safety requirements.
Trim:
To trim the output voltage higher, connect the
required trim resistor from the Trim pin to the +Sense
pin. To trim the output voltage lower, connect the
required trim resistor from the Trim pin to the –Sense
pin. See following diagrams.
{ } ^RTRIM-UP ⁼
VO(100+∆%)
1.225∆%
–
(100+2∆%)
∆%
5.11kΩ
External Output Trimming
+ Sense
Trim
– Sense
Dorado MV, Page 4
PRELIMINARY
Part No. 01-002 Rev. 1.0–110702