GS70T300-3.5200 to 400 V3,5 V20 A
GS100T300-5200 to 400 V5,2 V20 A
GS100T300-12200 to 400 V12,0V8,3 A
GS100T300-15200 to 400 V15,0V6,6 A
GS100T300-24200 to 400 V24,0V4,2 A
GS100T300-48200 to 400 V48,0V2,0 A
i
V
o
I
FEATURES
High inputvoltage range bus: 200 to 400Vdc
UL, TUV approved
High outputpower (up to 100W)
Highefficiency(80%min. onGS100T300-5module)
Outputvoltagesrange:3.5-5.2-12-15-24and 48V
Output voltageadjustable by externalpin
Remote load voltagesense compensation
Output short-circuitprotection
Output overvoltageprotection
Undervoltagelock-out
Minimal overshootduring loadtransients
3750V
The GS70/100T300family includes 70/100W DCDC converters used to generate isolated output
voltages with an output current up to 20A from a
wide range input voltage (200 to 400Vdc).
All the GS70/100T300 family modules require an
external fuse (1 Amps.) on the input side.
June 19941/10
GS70/100T300 Family
GS70T300-3.5ELECTRICAL CHARACTERISTICS (T
=25°Cunless otherwisespecified)
amb
SymbolParameterTest ConditionsMinTypMaxUnit
V
Q
P
V
V
V
orn
V
δV
δV
∆V
δV
SVR
I
Input Voltage
i
Inrush ChargeVi= 400V
i
Input PowerVi= 300V Io= 0A (No Load)
i
Output VoltageVi= 200 to 400V
o
Output Voltage RangeVi= 200 to 400V
o
Output Rippleand
Noise Voltage
Output Overvoltage
ol
Limit Initiation
Line RegulationVi= 200 to 400V
OL
Load RegulationVi= 300V
OO
Total Remote Sense Compensation Vi= 200 to 400V
o
Peak Load TransientResponseVi = 300V δIo= 10A
o
Vo= 3.5V Io= 0 to 20A
(Operating Conditions)
Io= 20A
Io=0 to 20A
Io=0 to 20A (see fig. 2)
Vi= 300V
Io= 20ABW = 0 to 20Mhz
Vi= 200 to 400V
Io=0 to 20A
Io= 20A
Io=0 to 20A
Supply VoltageRejectionf = 100Hz
Output CurrentVi= 200 to 400V
The converteris ON (Enable) when the voltage applied to this pin with reference topin 2 is
1ENABLE
2- Vin
3+ Vin
4,5+ Vo
6,7- Vo
8+ SENSE
9- SENSE
10ADJ
8/10
lower than 1.2V. The converter is OFF (Inhibit) for acontrol voltagein the range of2.1 to
5V. When the pin is unconnected the converteris OFF(Inhibit).
Negative input voltage.
Positive inputvoltage. Unregulated input voltage in the rangeof 200 to 400Vdc must be
applied between pin 2-3.
+Vooutput voltage.
+Vooutput voltagereturn.
Senses the remote load high side. Tobe connected to pins 4,5 when remotesense is not
used.
Senses the remote load return. Tobe connected to pins 6,7 when remote sense is not
used.
Adjust outputvoltage pin. A voltage generatorbetween the ADJ. pin and -SENSEpin sets
the Vo. Whenunconnected Vois at nominal value (see fig. 2).
GS70/100T300 Family
ADJUSTMENT OF THE OUTPUTVOLTAGE
The output voltagecan be fixed followingthe indications givenin fig. 2. Theexternal reference voltage Vadj can be calculated using the following
formula:
Theconverter is agency certifiedto thefollowing safety requirements.
AgencyRequirementsLicense Number
ULUL-STD-1950E141284
TUVEN 60950R 9371740.1
UL is a registered trademark of UNDERWRITERS LABORATORIES inc.
TUVis a registered trademarkof TUV Rheinland.
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which mayresult from its use. No
license is grantedby implicationor otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized foruse as critical components inlife support devices or systems without express
written approval ofSGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics – All Rights Reserved
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