General Specifications
V
= 48V , T @25°C, 300 LFM Airflow, V
=2.5V, I
= Full Load unless otherwise noted.
OUT
IN
DC
A
OUT
Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.)
Input Characteristics
Parameter
(24V Input in [brackets])
Min
Typ
Max
Units
Operating Input Voltage
Input Current (Model Dependent)
Input Capacitance
36 [18]
48 [24]
75 [36]
6 [10]
V
DC
A
4 [9]
2 [1]
µF
Input Hysteresis, Low Line
V
DC
Output Characteristics
Regulation Over Line, Load & Temperature
Voltage Ripple
98
102
25
%V
mV
NOM
RMS
Voltage Ripple, 20MHz BW
Current Range
85
mV
P–P
0
60
A
Current Limit Inception
103
140
90
%I
OUT
Short Circuit Current, Peak (see Note below)
Output Transient Response, 50% to 75% load change, 1A/µsec
Settling Time to ±1%
A
5
%V
OUT
200
35
µS
mS
Turn-on Time to 98%Vnom
Output Overshoot at Turn-on
Trim Range
0
%V
OUT
OUT
OUT
70
110
%V
%V
Overvoltage Protection, Latching
130
Isolation
Isolation Test Voltage, Input/Output (Basic)
Isolation Test Voltage, Input/Case
Isolation Test Voltage, Output/Case
Isolation Resistance
2250
2000
500
10
V
V
V
DC
DC
DC
MΩ
Features
Overtemperature Protection, Thermal Sensor, Latching*
110
°C
Switching Frequency, Fixed
250
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
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
2 to 9Hz, 3mm disp.,
9 to 200Hz 1g
Designed to meet emission and immunity
requirements per EN55022, CISPR 22, Class B,
and CISPR 24.
Vibration
Material Flammability
Weight
UL V-0
An external fuse shall be used to comply with the
requirements.
35 grams
MTBF
Telcordia (Bellcore) 1.6 Million Hours
Pisces II Series, Page 2
WWW.GALAXYPWR.COM
Part No. 02-007 Rev. 3.0–061004
GALAXY [ GALAXY POWER, INC. ]
