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| PD-LPM-0102EP DSL LTU POWER MODULE: 36-72VDC INPUT, DUAL 120VDC/60mA OUTPUT FEATURES Designed for Span Powering of ETSI HDSL Systems High Efficiency Input to Output Isolation Two Outputs with Independent Protection Mechanism Outputs can be Paralleled for Current Sharing, i.e. 120V/120mA Adjustable Output Voltage (105 to 120Vdc) Wide Input Voltage Range Output Unbalanced Indication 90 days warranty UL1950, CSA22.2-950 and EN60950 Approved Backward compatible with the PD-LPM-01021 APPLICATIONS HDSL/xDSL Systems Voice Pair-Gain Systems Supports Single and Dual Loop Configurations General Remote Power Feeding Communications Applications 48Vdc, 60Vdc Telecommunications Systems ETSI Remotely Fed Systems DESCRIPTION The PD-LPM-0102EP is a 15 Watt DC/DC converter module especially designed for HDSL/xDSL remote power feeding applications (on LTU). The module operates from 36 to 72Vdc input voltage and provides two independent balanced outputs of 120V/60mA, isolated from the input. The output voltage can be reduced, in the range of 105-120V, by adding an external resistor. Reduction of the output voltage to 105-120V may be required in order to allow for HDSL communication signal superimposing, without exceeding the maximum 120V standard limitation. A high precision current limiting circuit is implemented on each output. This feature enables delivery of maximum power through the line while maintaining the TNV safety requirements of maximum 60mA current. The module also provides report lines, which deliver information regarding unbalanced outputs (deviation of more than 20%) and overload condition of each output. The overload protection circuits on each output are independent, and allow for one output to work normally while the other is overloaded. The PD-LPM-0102EP is designed to work optimally while working in conjunction with the PowerDsine PD-NPM-03xx module series. Designed for ETSI specific requirements, the PDLPM-0102EP simplifies integration and reduces overall system dimensions, cost and time to market. TYPICAL APPLICATION +5V PD-LPM-0102EP 18 NC 17 Inhibit 16 NC 120V Output1 RTN 1 C01 Output 1 120V/60mA 120V Output1 2 Earth GND 3 Overload1 4 Overload2 5 Voltage Adjust 6 Earth GND 7 Rext Off On Overload 1 15 Unbl. Unbalanced Inhibit 14 Unbl. RTN 13 NC DGND Overload 2 12 NC Fuse 2.5A/250V -48V Cin -48 RTN 11 -48V 10 -48V RTN 120V Output2 8 C02 Output 2 120V/60mA 120V Output2 RTN 9 Recommended values for Cin, C01, C02 10F Aluminum electrolytic capacitor in parallel to a 1F film capacitor. ________________________________ 1 The "EP" suffix to the part number indicates an open frame module, without epoxy potting, as well as enhanced efficiency and extended temperature range. PD-LPM-0102EP PD-LPM-0102EP DSL LTU POWER MODULE: 36-72VDC INPUT, DUAL 120VDC/60mA OUTPUT ABSOLUTE MAXIMUM RATINGS* Input Voltage .............. - 0.5 to 100V Inhibit Input voltage .............. - 0.5 to 30V Storage Temperature .............. - 40C to 100C Isolation Voltage (Input to Output1, Output2) .............. 1500Vdc *These are stress ratings. Exposure of the device to any of these conditions may adversely effect long-term reliability. Proper operation other than as specified in the PERFORMANCE / FUNCTIONAL SPECIFICATIONS is not implied. PERFORMANCE / FUNCTIONAL SPECIFICATIONS Unless otherwise indicated, the data below applies to the specified operating input voltage, load (resistive), and temperature range, Cin=10F. Parameter Conditions Min Typ Max Unit Input 36.0 72.0 V Input Voltage Input Current 0.55 A Input Reflected Ripple 500 mVp-p Measured on Cin = 10F, ESR1 External Capacitor Output 15 W Total Output Power Output Voltage Set, Note 3, 4 Full Load, Rext = Not Connected 115 118 120 V Output Ripple & Noise, Note 3 Measured @ 25C ambient on external output capacitor: 10F Tel: +972-9-775-5100 * Fax: +972-9-775-5111 * Email: sales@powerdsine.com Tel: +1-631-756-4680 * Fax: +1-631-756-4691 * Email: sales@powerdsineusa.com Tel: +49-6187-900-849 * Fax: +49-6187-292848 * Email: europe@powerdsine.com PD-LPM-0102EP DSL LTU POWER MODULE: 36-72VDC INPUT, DUAL 120VDC/60mA OUTPUT NOTES 1. Outputs Overload 1 and Overload 2 are designed to drive 1mA for an opto-coupler LED (no additional resistor is needed). High impedance load on this terminal may develop high voltage up to 120Vdc. 2. Outputs Unbl. and Unbl. RTN are designed to drive 1mA for an opto-coupler LED (no additional resistor is needed). High impedance load on this terminal may develop up to 13Vdc. 3. Unless otherwise stated, data refers to both Output 1 and Output 2. 4. Connecting a resistor, Rext, between pin 6 and 8 sets the output voltage. For output voltages of 110V, Rext = 11.5K resistor. When left open (Rext = ), the output voltage is set to its maximum value. Setting effects both Output 1 and Output 2. 5. The output stage acts as a current source. When output current reaches the threshold, an overload circuit will detect 5-8V drop below the nominal set value. 6. The output stage acts as a current source when it reaches the current limit level. When output voltage falls below a threshold level, the output stage is disconnected in order to reduce heat dissipation. The unit reverts to normal operation once the overload condition is removed. Overload condition on one output does not effect the other output. 7. The module is designed to meet EN55022 Class B Standard with an external EMI filter. For filter design recommendations, refer to the PowerDsine xDSL Power Modules Application Note. 8. When connecting the two outputs in parallel to achieve a single 120V/120mA output, automatic recovery from overload shutdown will occur only after the total consumed output current drops below 60mA. SAFETY INSTRUCTIONS (According to UL1950, CSA C22.2 No. 950 and EN60950 requirements) 1. For North America, input voltage (nominal 48Vdc, tolerance 36-60Vdc) must be applied by isolated DC source complying with the earthed SELV or TNV requirements of the UL1950, Third edition. For other countries, input voltage (nominal 48Vdc, tolerance 36-72Vdc) must be supplied by isolated DC source complying with the earthed SELV or TNV requirements of the latest version of EN60950. DC input must be protected by UL Listed fuse rated maximum T2.5A, 250V (slow-blow 2.5A, 250V fuse). When applicable, protection from excessive voltage on the output should be tested in end-use equipment. 2. 3. PD-LPM-0102EP PD-LPM-0102EP DSL LTU POWER MODULE: 36-72VDC INPUT, DUAL 120VDC/60mA OUTPUT MECHANICAL DETAILS E BOTTOM VIEW F 9 10 D C DIMENSIONS mm A B Inch 1.97"0.02" 1.97"0.02" .1875"0.02" .484"0.02" 1.00"0.01" .20"0.01" .158"0.02" .492" MAX .117"0.01" .117"0.01" 50.000.50 50.000.50 4.800.50 12.300.50 25.400.25 5.080.25 4.000.50 12.50 MAX 3.000.25 3.000.25 B C 1 A 18 D E F H Open Frame SIDE VIEW G H K G 0.650.1mm [.025.005"] SQUARE PIN K TOP VIEW L L PIN CONNECTIONS Pin # 1 2 3 4 5 6 7 8 9 10 11 12,13, 16,18 14 15 17 Function 120V Output1 RTN 120V Output1 Earth GND Overload 1 Overload 2 Voltage Adjust Earth GND 120V Output2 120V Output2 RTN -48V RTN -48V Input NC Unbl. RTN Unbl. Inhibit Description Output power ground #1. Output power #1. To ensure proper operation under large load changes, a minimum 10F Aluminum electrolytic capacitor in parallel to a 1F film capacitor must be connected. Pin 3 should be connected to system GND. Output power is balanced in reference to pin 3. Report line, active when output #1 is in overload or short circuit condition. See Note 1. Report line, active when output #2 is in overload or short circuit condition. See Note 1. Connection of a resistor between pin 6 and 8 enables reducing both output voltages simultaneously in the range of 105-120V. The resistor needs to be 1/8W rated or higher. Pin 7 should be connected to system GND. Output power is balanced in reference to pin 3. Output power #2. To ensure proper operation under large load changes, a minimum 10F capacitor (electrolytic or other) must be connected. Output power ground #2. Positive Input line connection. Negative Input line connection. Not connected. Return line for Unbl. See Note 2. Report line. Active when output voltage (either or both) become unbalanced in reference to the GND Ground. This may occur when there is an unwanted current path to ground (leakage). Note 2. Logic input, referenced to the -48V input (Pin 11). Voltage above the specified threshold will inhibit the operation of the unit, and current consumption on input will drop to a very low level. Leaving this input unconnected or tied to a low logic level will enable the unit. PD-LPM-0102EP V15 0900 PowerDsine Ltd. PowerDsine, Inc. PowerDsine Europe Tel: +972-9-775-5100 * Fax: +972-9-775-5111 * Email: sales@powerdsine.com Tel: +1-631-756-4680 * Fax: +1-631-756-4691 * Email: sales@powerdsineusa.com Tel: +49-6187-900-849 * Fax: +49-6187-292848 * Email: europe@powerdsine.com |
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