General Specifications
V
= 48V , T @25 °C, 300 LFM airflow, V
= rated output voltage , 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
48V Series
24V Series
Parameter
Min
Max
75.5
8.6
6.6
3
Min
Max
Units
Operating Input Voltage
Input Current (Model Dependent)
Input Capacitance
Input Hysteresis, Low Line
Reflected Input Ripple
through 10µH with 47µF on input
Control Signal Low Input Voltage
Control Signal High Input Voltage
Maximum Input Voltage, non-operating
No Load Input Current
35.5
17.5
36.5
17
20
3
V
DC
A
µF
V
DC
1
1
4
1.5
20
mARMS
1
1
1
V
V
V
DC
DC
DC
4
100
70
100
100
mA
Output Characteristics
Output Voltage, half-load, 48Vin, 25°C
Regulation Over Line, Load & Temperature
99.8
99
100.2
101
50
99.8
99
100.2
101
50
%V
%V
mV
P-P
NOM
NOM
Voltage Ripple
5V
5V
12
35
9
60
12
35
9
45
mVRMS
mV
mVRMS
≤ 3.3V
≤ 3.3V
5V
3.3V
2.5V
≤1.8V
P-P
Current Range
0
0
0
0
0
0
A
A
A
A
DC
DC
90
85
100
120
125
+10
135
140
100
120
125
+10
135
140
DC
0
0
DC
Short Circuit
Trim Range
105
-70
125
135
105
-70
125
135
%I
MAX
%V
NOM
Overvoltage Protection, Tracking, Latching
Overvoltage Protection, Redundant, Latching
Isolation
%V
SET
%V
NOM
Isolation Test Voltage, Input/Output (Basic)
Isolation Resistance
2250
10
2250
10
V
MΩ
DC
Features
2
Over-temperature Protection, Thermal Sensor
120
2200
0
95
95
125
120
2200
0
95
95
125
°C
pF
V
DC
%
Input-output Capacitance
Isense Signal, no load to current limit
Ishare Accuracy (See application notes)
Power Good Range
2.5
105
105
5.25
2.5
105
105
5.25
%V
SET
DC
Power Good High Level
4.75
4.75
V
Notes: 1. Internal pull up on both Control_L Primary and Secondary and Control_H pins are provided which source <0.2mA. For the module
to operate Control_L needs to be low with respect to Vin(-) and Control_H needs to be high, or open-circuited.
2. PCB less than 130°C.
Approvals and Standards
General Specifications
Operating Temperature
Storage Temperature
Relative Humidity
Vibration
Material Flammability
Weight (open frame)
-40°C to +100°C
–55°C to +125°C
10% to 95% RH,Non-condensing
2 to 9Hz, 3mm disp., 9 to 200Hz1g
UL V-0
UL and c-UL Recognized Component,
TUV pending, UL60950, CSA 22.2 No. 950,
IEC/EN60950**
** An external fuse shall be used to comply with the requirements.
55 grams
MTBF
Telcordia (Bellcore)
1,600,000 hours
Leo Series, Page 2
PRELIMINARY
Part No. 99–001 Rev. 4.0–120902
GALAXY [ GALAXY POWER, INC. ]
