PD-LPM-0102EP Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – DSL LTU POWER MODULE: 36-72VDC INPUT, DUAL 120VDC/60mA OUTPUT

PD-LPM-0102EP
DSL LTU POWER MODULE: 36-72V_DC INPUT, DUAL 120V_DC/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 PD-
LPM-0102EP simplifies integration and reduces overall system dimensions, cost and time to market.
TYPICAL APPLICATION
+5V
Off
On
Inhibit
Unbalanced
-48V
-48 RTN
DGND
Fuse
2.5A/250V
Cin
18 NC
17 Inhibit
16 NC
15 Unbl.
14 Unbl. RTN
13 NC
12 NC
11 -48V
10 -48V RTN
PD-LPM-0102EP
120V Output1 RTN 1
120V Output1 2
Earth GND 3
Overload1 4
Overload2 5
Voltage Adjust 6
Earth GND 7
120V Output2 8
120V Output2 RTN 9
C01
Output 1
120V/60mA
Overload
1
Rext
C02
Overload
2
Output 2
120V/60mA
Recommended values for Cin, C01, C02 10µF Aluminum electrolytic capacitor in parallel to a 1µF film capacitor.
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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