General Specifications
V
IN
= 48V , T @25° C, 300 LFM Airflow, V
=5.0V , I
= Full Load unless otherwise noted.
DC
A
OUT
DC OUT
Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.)
Input Characteristics
Parameter
Min
Typ
Max
75
4
Units
Operating Input Voltage
Input Current
36
48
V
DC
A
Input Capacitance
3
2
µF
Input Hysteresis, Low Line
Output Characteristics
Regulation Over Line, Load & Temperature
Voltage Ripple
V
DC
4.90
5.10
20
50
20
28
40
8
V
mV
RMS
P–P
Voltage Ripple, 20MHz BW
Current Range
mV
0
A
Current Limit Inception
20.6
A
A
1
Short Circuit Current, Peak
2
Output Transient Response, 50% to 75% load change, 1A/µsec
Settling Time to ± 1%
%V
OUT
200
35
µS
Turn-on Time to 98%Vnom
Output Overshoot at Turn-on
Trim Range
mS
0
%V
OUT
OUT
OUT
70
110
%V
%V
Overvoltage Protection, Latching
Isolation
130
Isolation Test Voltage, Input/Output (Basic)
Isolation Resistance
2250
10
V
DC
MΩ
Features
3
Overtemperature Protection, Thermal Sensor, Latching
110
° C
Switching Frequency, Fixed
250
kHz
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
Approvals and Standards
Operating Temperature
Storage Temperature
Relative Humidity
–40° C to +100° C
–55° C to +125° C
UL and c-UL Recognized Component, TUV**,
UL60950, CSA 22.2 No. 950, IEC/EN 60950
EMC Characteristics:
10% to 95% RH,
Non-condensing
Designed to meet emission and immunity
requirements per EN55022, CISPR 22, Class B,
and CISPR 24.
Vibration
2 to 9Hz, 3mm disp.,
9 to 200Hz, 1g
** An external fuse shall be used to comply with the requirements.
Material Flammability
UL V-0
35 grams
Telcordia (Bellcore) TBD
Weight
MTBF
GAMW5V020 – 2
WWW.GALAXYPWR.COM
Part No. 02-GAM-01 Rev. 1.0 – 042805
Galaxy Power Inc. 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Fax: 508-870-9796 e-mail: info@galaxypwr.com
GALAXY [ GALAXY POWER, INC. ]
