Specifications
Control Signal Characteristics
Parameter
Name
Test Condition
Symbol
Requirement
Min
Max
Unit
Enable_L
Function Control
Voltage (Secondary Side)
Enable
Function Control
Resistance (Secondary Side)
OTW–L
Overtemperature Warning
V
ENABLE
R
ENABLE
I
SINK
I
LEAKAGE
V
L
T
OTW
-
L
Time delay
MODOK_L
I
LEAKAGE
I
SINK
V
L
Enable_L asserted
Enable_L de-asserted
Source Current (V
ENABLE
= 0.8V)
Enable_L asserted
Enable_L de-asserted
Source Current (R
ENABLE
= 100Ω)
OTW_L asserted, V
S
= 5V, R
L
= 50Ω
OTW_L de-asserted, V
S
= 15V
OTW_L asserted, V
S
= 5V, R
L
=5K
V
I
= 48V, V
O
= rated V
O
,
I
O
= Rated I
O
max
, Fan-off early warning time
before converter shuts down due to thermal
overload
MODOK_L de-asserted, V
S
= 15V
MODOK_L asserted, V
S
= 5V, R
L
= 50Ω
MODOK_L asserted, V
S
= 5V, R
L
= 5K
0
4.5
–
–
200K
–
8
–
–
500
0.8
5.5
-1.0
100
–
-1.0
20
10
0.2
–
V
V
mA
Ω
Ω
mA
mA
µA
V
ms
–
8
–
10
20
0.2
µA
mA
V
Maximum Output Load Current (I
OP
) vs Number of Converters
No. of Converters
1.5V & 2.2V
3.3V
5.0V
1
2
3
4
5
60A
117A
174A
231A
288A
50A
87.75A
130.5A
173.25A
216A
40A
58.5A
87.0A
115.5A
144A
Thermal Characteristics (Θ
CA
)
Air Velocity
(m/s)
Thermal Resistance (Baseplate to Ambient)
°
C/W
0.9" Heatsink
1.4" Heatsink
0.5
1.0
1.5
2.0
2.5
3.0
1.9
1.6
1.4
1.3
2.1
1.3
1.1
1.0
0.9
Hercules Series, Page 5
WWW.GALAXYPWR.COM
Part No. 98–002 Rev. 1.1
GALAXY [ GALAXY POWER, INC. ]
