Data Sheet
March 27, 2008
LC/LW010- and LC/LW015-Series Power Modules:
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W
Features
n Low profile: 10.2 mm x 25.4 mm x 50.8 mm
(0.4 in. x 1.0 in. x 2.0 in.) with standoffs
(9.6 mm (0.38 in.) with standoffs recessed)
n Wide input voltage range: 18 Vdc to 36 Vdc or
36 Vdc to 75 Vdc
n Output current limiting, unlimited duration
n Output overvoltage clamp
n Undervoltage lockout
n Input-to-output isolation: 1500 V
n Operating case temperature range: 40 C to
+105 C
The LC/LW010- and LC/LW015-Series Power Modules use
n UL* 1950 Recognized, CSA 22.2 No. 950-95
advanced, surface-mount technology and deliver high-qual-
Certified, IEC950, and VDE0805 Licensed
ity, compact, dc-dc conversion at an economical price.
n CE mark meets 73/23/EEC and 93/68/EEC
directives
Options
n Within FCC and VDE Class A radiated limits
n Remote on-off
Applications
n Choice of on/off configuration
n Short pin: 2.8 mm 0.25 mm (0.110 in. 0.010 in.)
n Telecommunications
n Synchronization (cannot be ordered on units with
n Distributed power architectures
remote on/off)
n Output voltage adjust: 90% to 110% of VO, nom
n Private branch exchange (PBX)
(single outputs only)
n Voice and data multiplexing
n Tight output voltage tolerance
Description
The L Single- and Dual-Output-Series Power Modules are low-profile, dc-dc converters that operate over an
input voltage range of 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc and provide one or two precisely regulated out-
puts. The outputs are isolated from the input, allowing versatile polarity configurations and grounding connec-
tions. The modules have a maximum power rating of 10 W to 15 W and efficiencies of up to 84% for a 5 V
output and 82% for a 3.3 V output. Built-in filtering for both input and output minimizes the need for external fil-
tering.
*UL is a registered trademark of Underwriters Laboratories, Inc.
CSA is a registered trademark of Canadian Standards Association.
This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment should be followed. (The CE mark is placed on selected products.)LC/LW010- and LC/LW015-Series Power Modules:
Data Sheet
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W
March 27, 2008
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Parameter Device Symbol Min Typ Max Unit
Input Voltage:
Continuous LC VI 0 50 Vdc
LW VI 0 80 Vdc
Transient (100 ms) LW VI, trans 0 100 V
Operating Case Temperature All TC 40 105* C
(See Derating Curves, Figures 4345.)
Storage Temperature All Tstg 55 125 C
I/O Isolation All 1500 Vdc
* Maximum case temperature varies based on power dissipation. See derating curves, Figures 4345, for details.
Electrical Specifications
Table 1. Input Specifications
Parameter Device Symbol Min Typ Max Unit
Operating Input Voltage LC VI 18 24 36 Vdc
LW VI
36 48 75 Vdc
Maximum Input Current LC II, max 1.6 A
(VI = 0 to VI, max; IO = IO, max; see Figures LW II, max 800 mA
14.)
2 2
Inrush Transient All 0.2
I t A s
Input Reflected-ripple Current All II 5 mAp-p
(5 Hz to 20 MHz; 12 H source imped-
ance; TA = 25 C; see Figure 33.)
Input Ripple Rejection (100 Hz120 Hz) All 45 dB
Fusing Considerations
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone
operation to an integrated part of a sophisticated power architecture. To preserve maximum flexibility, internal fus-
ing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. The
safety agencies require a normal-blow, dc fuse with a maximum rating of 5 A (see Safety Considerations section).
Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same
type of fuse with a lower rating can be used. Refer to the fuse manufacturers data for further information.
2 Lineage Power