General Specifications
V
IN
= 48V
DC
, T
A
@25° C, 300 LFM Airflow, V
OUT
=2.5V
DC
, I
OUT
= Full Load unless otherwise noted.
Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.)
Input Characteristics
Parameter
Min
Typ
Max
Units
Operating Input Voltage
Input Current (Model Dependent)
Input Capacitance
Input Hysteresis, Low Line
36
48
3
2
75
3.75
V
DC
A
µF
V
DC
Output Characteristics
Regulation Over Line, Load & Temperature
Voltage Ripple
Voltage Ripple, 20MHz BW
Current Range
Current Limit Inception
Short Circuit Current, Peak
1
Output Transient Response, 50% to 75% load change, 1A/µsec
2
Settling Time to
±
1%
Turn-on Time to 98%Vnom
Output Overshoot at Turn-on
Trim Range
Overvoltage Protection, Latching
70
130
2250
10
110
250
0
110
0
41.2
2.450
2.550
20
75
40
56
60
16
200
25
V
mV
RMS
mV
P–P
A
A
A
%V
OUT
µS
mS
%V
OUT
%V
OUT
%V
OUT
V
DC
MΩ
°
C
kHz
Isolation
Isolation Test Voltage, Input/Output (Basic)
Isolation Resistance
Features
Overtemperature Protection, Thermal Sensor, Latching
3
Switching Frequency, Fixed
Notes:
1. During short circuit, converter will shut down and attempt to restart once per second. The average current during this condition will be very low
and the device can be safely left in this condition continuously.
2. Limited by output energy storage. For improved performance see Tuned (T) model information.
3. PCB less than 130° C
General Specifications
Operating Temperature
Storage Temperature
Relative Humidity
Vibration
Material Flammability
Weight
MTBF
Telcordia (Bellcore)
–40° C to +100° C
–55° C to +125° C
10% to 95% RH,
Non-condensing
2 to 9Hz, 3mm disp.,
9 to 200Hz, 1g
UL V-0
35 grams
TBD
Approvals and Standards
UL and c-UL Recognized Component, TUV**,
UL60950, CSA 22.2 No. 950, IEC/EN 60950
EMC Characteristics:
Designed to meet emission and immunity
requirements per EN55022, CISPR 22, Class B,
and CISPR 24.
** An external fuse shall be used to comply with the requirements.
GAMW2V540 – 2
WWW.GALAXYPWR.COM
155 Flanders Road
Westborough, MA 01581
Telephone: 508-870-9775
Part No. 02-GAM-03 Rev. 1.0 – 042805
Galaxy Power Inc.
Fax: 508-870-9796
e-mail: info@galaxypwr.com
GALAXY [ GALAXY POWER, INC. ]
