 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| GS1T70-D540/2 ISDN DC-DC CONVERTER PRELIMINARY DATA Type GS1T70-D540/2 Vi 28 to 115 V Vo out 1 : 5V Io 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 specification Minimum current drain during stand-by condition: 10A 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") 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 supplied. The converter offers short-circuit protection (shortcircuit 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 requirements. When the input voltage is below 18V, the converter offers a very high input impedance and a maximum quiescent current of 10A 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 provided 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 certification processes have been carried out on the module itself. 20 January 1997 1/5 GS1T70-D540/2 ELECTRICAL CHARACTERISTICS (Tamb = 25C unless otherwise specified) Std. Conditions: Line Termination voltage: 47 to 71V 87 to 115V Symbol Vi Vist Vo1 Vo2 Vor1 Vor2 Io1 Po2 Parameter Input Voltage Start Up Input Voltage Output Voltage 1 Output Voltage 2 Output Ripple Voltage 1 Output Ripple Voltage 2 Output Current 1 Output Power 2 Line Resistance (Rs): 0 to 600 550 to 1400 Min 28 28 4.75 34 5 40 5 10 2 0 Typ Max 115 44 5.25 42 20 30 72 420 Unit V V V V mVpp mVpp mA mW Test Conditions Std. Conditions See fig. 3 Std. Conditions Std. Conditions Std. Conditions BW = 0 to 20MHz Std. Conditions BW = 0 to 20MHz Std. Conditions Po2 = 410 mW Vo1 = 5V Std. Conditions Vo1 = 4.75 to 5.25V Vo2 = 34 to 42 V Std. Conditions Io1 = 2 to 72 mA Vo2 = 34 to 40V Std. Conditions Output Shorted (Indefinite time) Input to Output 2 Output 1 to Output 2 (*) f = 50 Hz Ground Fixed Io2max Iosc2 Max Output Current 2 Output 2 Short Circuit Current Insulation Voltage Mean Time Before Failure Operating Ambient Temperature Range Storage Temperature Range 12 9.8 3000 1 -20 - 40 +70 +85 mA mA VRMS Mhours C C Vis MTBF Top Tstg (*) no insulation is provided between input and output 1 OUTPUT POWER CHARACTERISTICS LT (Line Termination Voltage) = 47V to 71V Rs (Line Resistance) = 0 to 600 Max Input Power (mW) 450 950 (*) 90 180 1050 (*) Min Min Output Output Power 1 Power 2 (5V)[mW] (40V)[mW] 320 320 40 40 320 0 410 0 45 Short circuit LT (Line Termination Voltage) = 87V to 99V Rs (Line Resistance) = 550 to 1400 Max Input Power (mW) 450 950 90 180 1050 Min Min Output Output Power 1 Power 2 (5V)[mW] (40V)[mW] 320 320 40 40 320 0 410 0 45 Short circuit NT Status NT Status Activated Activated Emergency Deactivated Deactivated Emergency Activated with 40 V Short circuit Activated Activated Emergency Deactivated Deactivated Emergency Activated with 40V Short circuit N.B.: with the following output loads: Po1 (5V) : 15 mW and Po2 (40 V) : 410 mW , maintained for a time t > 2s, Vo2 = 34 to 42 V (*) Note: the values indicated are subordinated to the available input power 2/5 20 January 1997 GS1T70-D540/2 Figure 1. Connection diagram and mechanical data 18.0 (0.71) 50.8 (2.00) O 1 (0.04) Bottom view 1.27 (0.05) 50.8 (2.00) 3 4 5.08 (0.2) 10.16 (0.4) 5 6 5.08 (0.2) 10.16 (0.4) 2 1 7.62 (0.3) 21.59 (0.85) 19.05 (0.75) 3.0 (1.18) Package V. Dimensions in mm (inches). PIN DESCRIPTION Pin 1 2 3 4 5 6 Description Input (either polarity) Input (either polarity) +5V Output Return for +5V Output +40V Output Return for +40 V Output Figure 2. Galvanic insulation barrier Galvanic insulation barrier out 1 5V out 2 40V GALVANIC INSULATION Galvanic insulation (3000 V for 60 s as specified in EN60950) is provided between the input and the output 1 (40 V output for the "S" interface). No insulation is provided between input and output 2 (+5 V for logics put on NT1 board). See figure 2. INPUT 3000 V RMS 20 January 1997 3/5 GS1T70-D540/2 Figure 3. Voltage Supply operating area Vin Input Voltage Voltage Supply Operating Area Input current < 10 A Area 115 V 28-44 V 28 V 18 V 0V t >1 s t > 1 ms t VOLTAGE SUPPLY OPERATING AREA Figure 3 shows the Voltage Supply Operating area during a switching OFF-ON sequence.The start-up voltage is 44V maximum. Figure 4. Typical application example 3 1 One second after U-interface disconnection, and if the input voltage remains below 18V, the maximum quiescent input current value remains below than 10A. GS5AC-40 40 V + 4 5 1 Led 2 + Relay/Led Mains input GS1T70-D540/2 5 6 3 AC/DC converter - 6 2 + 40 V Relay + DC/DC converter 5V - 4 So Uo "S" interf. "U" interf. NT1 board 4/5 20 January 1997 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. (c) 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 |
Price & Availability of GS1T70-D5402
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |