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Details, datasheet, quote on part number:GS1T70-D540F
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Datasheet text preview:
GS1T70-D540F
ISDN DC-DC CONVERTER (FRENCH VERSION)
Type GS1T70-D540F Vi 25 to 115 V Vo 5V 40 V Io 90 mA 10,5 mA
FEATURES Wide operating line termination battery voltage P e a k in p u t o v er vo lt a g e wi th s t a n d : 1 k V f or 1.2/50µs Peak overvoltage withstand o n Output 2 (40V): 250V for 10/700µs 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: 10µA for Vi<18V Undervoltage lock out at 10V Input-output isolation voltage: 10 kV pulse 1,2/50 µseconds Output1-out put2 isolation voltage: 2000VRMS for 60 seconds Mechanical dimensions (L x W x H): 56 mm x 56 mm x 18 mm (2.2" x 2.2" x 0.71") DESCRIPTION The GS1T70-D540F converter has been designed for the "U" interface of an ISDN-NTBA (Network Termination Basic Access) system with either 4B3T or 2B1Q standard trasmission. I t meets the requirements of the following specifications: EN 60950 CCITT I.430 CCITT G.960 CCITT G.961 ETS 300 002 ETS 300 012 ETS 300 047 (ISDN BASIC ACCESS, Safety and Protection) Two isolated outputs, 5V/90mA and 40V/10. 5mA are supplied. The converter offers short-circuit protection (short-circuit on 40V output doesn't affect 5V output and the input power never exceeds the
June 1994
limit of the specification), input either voltage polarity, 80% minimum efficiency at maximum load, input and output filtering to meet very stringent noise requirements. The input and the output 2 (40V) s tages are protected against differential overvoltage up to 1kV (1.2/50µs) and 250V (10/700µs) respectively. When the input voltage is below 18V, the converter offers a very high input impedance and a maximum quiescent current of 10µA. These features allow the converter to operate directly connected to the telephone line without any external components. In addition, the wide operating input voltage range allows it to operate within the whole range o f LT (Line Termination) battery voltage and its relevant line resistance. 2000VRMS isolation voltage for 60 second is provided between input to outputs and between output 1 and output 2.
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GS1T70-D540F
ELECTRICAL CHARACTERISTICS (Tamb = 25°C unless otherwise specified) Std. Conditions: Line Termination voltage: 90 to 110V 105 to 115V
Symbo l Vi Vipk Vist Viuv Vo1 Vo2 Vor1 Vor2 eN Io1 Io1I Io2 Iosc2 Vis Parameter Input Voltage Input Transient Overvoltage Start Up Input Voltage Input Undervoltage Lockout Output Voltage 1 Output Voltage 2 Output Ripple Voltage 1 Output Ripple Voltage 2 Input Noise Voltage Output Current 1 Output Current 1 Limit Initiation Output Current 2 Output 2 Short Circuit Current Isolation Voltage (pulse) Operating Ambient Temperature Range Storage Temperature Range Std. C onditions Std. C onditions Std. C onditions BW = 0 to 20MHz Std. C onditions BW = 0 to 20MHz Std. C onditions BW = 0 to 20MHz Std. C onditions Io2 = 0 to 10.5 mA Vo1 = 5V Std. C onditions Vo1 = 4.75 to 5.25V Std. C onditions Io1 = 2 to 90 mA Vo2 = 40V Std. C onditions Output Shorted (Indefinite time) 2 110 0 9
Line Resistance (Rs):
50 to 1400 500 to 1900
Min 25 Typ Max 115 1 28 10 4.75 34 5 40 5 10 10 5.25 42 20 30 30 90 130 10.5 14 44 Unit V kV V V V V mVpp mVpp mVpp mA mA mA mA VRMS °C °C
Test Conditions Std. C onditions t = 1.2/250µs (pulse) See fig. 2
Input to Output 1 t = 1.2/50 µs 10000 Input to Output 2 t = 1.2/50 µs 10000 Output 1 to Output 2 t = 1.2/50 µs 4000 0 40 +75 +85
Top Tstg
OUTPUT POWER CHARACTERISTICS
LT (Line Termination Voltage) = 90V to 110V Rs (Line Resistance) = 50 to 1400 Max Input Power (mW) 600 1150 200 270 1150 Min Min Output Output Power 1 Power 2 (5V)[mW] (40V)[mW] 420 450 110 110 450 0 420 0 60 Short circuit LT (Line Termination Voltage) = 105V to 115V Rs (Line Resistance) = 500 to 1900 M ax Inp ut Po wer (mW ) 600 1150 200 270 1150 Min Min Output Output Power 1 Power 2 (5V)[mW] (40V)[mW] 420 450 110 110 450 0 420 0 60 Short circuit
NT Status
NT Status
Activated Activated Emergency D eactivated Deactivated Emergency Ac tivated with 40 V Short circuit
Activated Activated Emergency Deactivated D eactivated Emergency Activated with 40V Short circuit
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GS1T70-D540F
CONNECTION DIAGRAM AND MECHANICAL DATA Figure 1.
Package V. Dimensions in mm (inches).
PIN DESCRIPTION
Pin 1 2 3 4 5 6 Input (either polarity). Input (either polarity). +5V Output. Return for +5V Output. +40V Output. Return for +40V Output. Description
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