General Specifications
V
IN
= 48V
DC
, T
A
@25
°
C, 300 LFM Airflow, V
OUT
=3.3V, 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
Output Characteristics
Regulation Over Line, Load & Temperature
Voltage Ripple
Voltage Ripple, 20MHz BW
Current Range
Current Limit Inception
Short Circuit Current, Peak (see Note below)
Output Transient Response, 50% to 75% load change, 1A/µsec
Settling Time to
±1%
Turn-on Time to 98%Vnom
Output Overshoot at Turn-on
Trim Range
Overvoltage Protection, Latching
Isolation
Isolation Test Voltage, Input/Output (Basic)
Isolation Resistance
Features
Overtemperature Protection, Thermal Sensor, Latching*
Switching Frequency, Fixed
36
48
4.5
2
75
5
V
DC
A
µF
V
DC
98
102
20
150
%V
NOM
mV
RMS
mV
P–P
A
A
A
%V
OUT
µS
mS
%V
OUT
%V
OUT
%V
OUT
V
DC
MΩ
0
31
30
37
41
5
300
35
1
90
130
2000
10
110
117
200
°C
kHz
Notes: 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. For specific output voltage
specifications, see the corresponding detailed data sheet.
*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
1,600,000 hours
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.
Pisces Series, Page 2
WWW.GALAXYPWR.COM
Part No. 99-002 Rev. 4.0–093003
GALAXY [ GALAXY POWER, INC. ]
