General Specifications
V
IN
= 48V
DC
, T
A
@25
°
C, 300 LFM Airflow, V
OUT
=2.5V, 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
(24V Input in [brackets])
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 Test Voltage, Input/Case
Isolation Test Voltage, Output/Case
Isolation Resistance
Features
Overtemperature Protection, Thermal Sensor, Latching*
Switching Frequency, Fixed
36 [18]
48 [24]
4 [9]
2 [1]
75 [36]
6 [10]
V
DC
A
µF
V
DC
98
102
25
85
%V
NOM
mV
RMS
mV
P–P
A
%I
OUT
A
%V
OUT
µS
mS
%V
OUT
%V
OUT
%V
OUT
V
DC
V
DC
V
DC
MΩ
0
103
60
140
90
5
200
35
0
70
130
2250
2000
500
10
110
110
250
°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
1.6 Million 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 II Series, Page 2
WWW.GALAXYPWR.COM
Part No. 02-007 Rev. 3.0–061004
GALAXY [ GALAXY POWER, INC. ]
