General Specifications
V
IN
= 48V
DC
, T
A
@25
°
C, 300 LFM airflow, V
OUT
= rated output voltage , 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
48V Series
Min
Max
Min
24V Series
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
1
Control Signal High Input Voltage
Maximum Input Voltage, non-operating
No Load Input Current
Output Characteristics
Output Voltage, half-load, 48Vin, 25°C
Regulation Over Line, Load & Temperature
Voltage Ripple
5V
5V
≤
3.3V
≤
3.3V
Current Range
5V
3.3V
2.5V
≤1.8V
Short Circuit
Trim Range
Overvoltage Protection, Tracking, Latching
Overvoltage Protection, Redundant, Latching
Isolation
Isolation Test Voltage, Input/Output (Basic)
Isolation Resistance
Features
Over-temperature Protection, Thermal Sensor
2
Input-output Capacitance
Isense Signal, no load to current limit
Ishare Accuracy (See application notes)
Power Good Range
Power Good High Level
35.5
1
75.5
8.6
6.6
3
1.5
1
17.5
1
36.5
17
20
3
20
1
V
DC
A
µF
V
DC
mA
RMS
V
DC
V
DC
V
DC
mA
%V
NOM
%V
NOM
mV
P-P
mV
RMS
mV
P-P
mV
RMS
A
DC
A
DC
A
DC
A
DC
%I
MAX
%V
NOM
%V
SET
%V
NOM
V
DC
MΩ
4
100
70
99.8
99
100.2
101
50
12
35
9
60
90
100
120
125
+10
135
140
4
100
100
99.8
99
100.2
101
50
12
35
9
45
85
100
120
125
+10
135
140
0
0
0
0
105
-70
125
135
2250
10
120
2200
0
95
95
4.75
0
0
0
0
105
-70
125
135
2250
10
125
2.5
105
105
5.25
120
2200
0
95
95
4.75
125
2.5
105
105
5.25
°C
pF
V
DC
%
%V
SET
V
DC
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.
General Specifications
Operating Temperature
-40°C to +100°C
Storage Temperature
–55°C to +125°C
Relative Humidity
10% to 95% RH,Non-condensing
Vibration
2 to 9Hz, 3mm disp., 9 to 200Hz1g
Material Flammability
UL V-0
Weight (open frame)
55 grams
MTBF
Telcordia (Bellcore)
1,600,000 hours
Approvals and Standards
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.
Leo Series, Page 2
PRELIMINARY
Part No. 99–001 Rev. 4.0–120902
GALAXY [ GALAXY POWER, INC. ]
