SGS Thomson Microelectronics GS300T48-5 Datasheet
GS300T48-5
300W DC-DC CONVERTER
Type V
GS300T48-5 38 to 60 V 5,075 V 60 A
i
V
o
I
o
FEATURES
Veryhigh output power (300W)
High efficiency(80%min.)
Paralleloperation with current sharing
Synchronizationpin
Remote ON/OFF
Remote loadvoltage sensecompensation
Output short-circuit protection
Output overvoltageprotection
Thermal protection
Undervoltagelock-out
Minimalovershoot duringload transients
500 V
inputto output isolation
DC
Internal inputand output filtering
Softstart
PCB or chassismountable
DESCRIPTION
The GS300T48-5 is a 300W DC-DC converters
used to generate a 5.075V isolated output with a
current of 60A from a widerange input voltage(38
to 60V).
SELECTIONGUIDE
Type
Ordering Number
GS300T48-5
GS300T48-5E
June 1994 1/6
Input
Voltage (V)
38 to 60 5.075 60
Output
Voltage
(V)
Output
Current
(A)
Dimensions
L • W • H mm (inches)
125 • 66.5 • 20
( 4.92 • 2.62 • 0.79)
The suffix E identifies the metric threading
on the planar heatsink (see fig. 1).
GS300T48-5
ELECTRICAL CHARACTERISTICS (T
Symbol
Input Voltage Vo= 5.075V Io= 0 to 30A
V
i
V
l
ipk
V
l
ien
V
V
V
V
V
V
V
∆V
δV
I
I
osc
t
V
R
T
cop
T
* Thermalintervention @ T
Input Undervoltage Lockout Io = 0 to 60A
iuv
AverageInput Current Vi= 48V
l
i
Inrush TransientPeak Current Vi= 60V
Reflected Input Current Vi= 48V Io= 60A
l
ir
Enable Input Voltage Vi= 38 to 60V Io= 0 to 60A
ien
Enable Input Current Vi= 38 to 60V Io= 0 to 60A
Max Inhibit Voltage Vi= 38 to 60V Io= 0 to 60A
iinh
Input Power Vi= 38 to 60V Io= 0A(No Load)
P
i
TotalOutput VoltageRegulation Vi= 38 to 60V Io= 0 to 60A
o
Short-term Output
ost
VoltageRegulation
TotalStatic Output
ots
VoltageRegulation
Output Overvoltage Limit Initiation Vi= 38 to 60V Io= 0 to 60A
ol
Output Ripple Voltage Vi= 38 to 60V Io= 60A
or
Output Noise Voltage Vi= 38 to 60V Io= 60A
on
TotalRemote Sense
o
Compensation
Peak Load Transient Response Vi= 48V δIo= 10A
o
Output Current Vi= 38 to 60V Vo=5V
I
o
OvercurrentLimit Initiation Vi= 48V
ol
Shortcircuit Output Current Vi= 48V
Load Transient Setting Time Vi= 48V δIo= 10A
t
s
Turn-onTime Vi= 38 to 60V Io= 0 to 60A
on
IsolationVoltage
is
Switching Frequency Vi= 38 to 60V Io= 0 to 60A
f
s
Efficiency Vi= 38 to 60V Io= 60A
η
Thermal Resistance Case toAmbient
th
Operating Case
TemperatureRange*
Storage TemperatureRange
stg
Parameter Test Conditions Min Typ Max Unit
=85°C
cop
=25°C unless otherwisespecified)
amb
(Operating Conditions)
Io= 60A
Io= 60A
BW = 5Hz to 20MHz (see fig. 2)
V
=0V
ien
Vien= open
Vi= 38 to 60V Io= 0 to 60A
Vi= 38 to 60V Io= 0 to 60A
BW = 0 to 20 Mhz
BW = 0 to 20 Mhz
Vi= 38 to 60V
slope = 0.1A/µs
slope = 0.1A/µs
V
= from high to low
ien
Vi= 0 to 60V Io= 0 to 60A
V
= low
ien
38 48 60 V
DC
29 36 V
7.8 A
2
0.3 A
s
30 mApp
0 1.2 V
–1 mA
818V
1.5 2 W
4.490 5.075 5.210 V
5.002 5.075 5.148 V
4.970 5.075 5.180 V
6.3 V
50 mVpp
100 mVpp
0.6 V
100 mVp
060A
63 A
69 A
250 µs
10 ms
10
500 V
160 180 200 kHz
80 81 %
5.2 °C/W
0 +70 °C
– 40 +105 °C
2/6
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