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What is GS1T70-D542?

This electronic component, produced by the manufacturer "STMicroelectronics", performs the same function as "ISDN DC-DC CONVERTER".


GS1T70-D542 Datasheet PDF - STMicroelectronics

Part Number GS1T70-D542
Description ISDN DC-DC CONVERTER
Manufacturers STMicroelectronics 
Logo STMicroelectronics Logo 


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Type
GS1T70-D540/2
Vi
28 to 115 V
Vo Io
out 1 : 5V 72 mA
out 2 : 40V 12 mA
FEATURES
Wide operating line termination voltage
Positive or negative input voltage polarity
Input and output filtering
Short-circuit protection on both outputs
Input power during shortcircuit within specifica-
tion
Minimum current drain during stand-by condition:
10µA for Vi<18V
Input-Output2 insulation voltage: 3000VRMS for
60 seconds
Output1-Output2 insulation voltage: 3000VRMS
for 60 seconds
Mechanical dimensions (L x W x H): 50.8 mm x
50.8 mm x 18 mm (2" x 2" x 0.71")
GS1T70-D540/2
ISDN DC-DC CONVERTER
PRELIMINARY DATA
DESCRIPTION
The GS1T70-D540/2 converter has been designed
for the “U” interface of an ISDN-NTBA (Network
Termination Basic Access) system with either 4B3T
or 2B1Q standard trasmission.
Two outputs, 5V/72mA and 40V/12mA are sup-
plied.
The converter offers short-circuit protection (short-
circuit on 40V output doesn’t affect 5V output and
the input power never exceeds the limits of the
specification), input either voltage polarity, 80%
minimum efficiency at maximum load, input and
output filtering to meet very stringent noise require-
ments.
When the input voltage is below 18V, the converter
offers a very high input impedance and a maximum
quiescent current of 10µA according to the standard
ETR 080.
In addition, the wide operating input voltage range
allows it to operate within the whole range of LT
(Line Termination) battery voltage and its relevant
line resistance.
3000VRMS isolation voltage for 60 second is pro-
vided between input to output 2 and between output
1 and output 2. No insulation is provided between
input and output 1.
The design of the module has been conducted
using, as reference standards, the following:
EN 60950, VDE0878 part 1 class B (EMC),
EN55022 class B (EMC), CCITT 430, ETS 300 012
and ETS 300 047 (ISDN BASIC ACCESS, Safety
and Protection); anyway, please note that no certi-
fication processes have been carried out on the
module itself.
20 January 1997
1/5

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GS1T70-D542 equivalent
GS1T70-D540/2
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 may result from its use. No
license is granted by implication or 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 for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
© 1997 SGS-THOMSON Microelectronics – All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
Australia - Brazil - China - Canada - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands -
Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
20 January 1997
5/5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for GS1T70-D542 electronic component.


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