Data Sheet
August 1998
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
s
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)
Wide input voltage range: 18 Vdc to 36 Vdc or
36 Vdc to 75 Vdc
Output current limiting, unlimited duration
Output overvoltage clamp
Undervoltage lockout
Input-to-output isolation: 1500 V
Operating case temperature range: –40
°C
to
+105
°C
UL
* 1950 Recognized,
CSA
†
22.2 No. 950-95
Certified, IEC950, and VDE0805 Licensed
CE mark meets 73/23/EEC and 93/68/EEC
directives
‡
Within FCC and VDE Class A radiated limits
s
s
s
s
s
s
The LC/LW010- and LC/LW015-Series Power Modules use
advanced, surface-mount technology and deliver high-quality,
compact, dc-dc conversion at an economical price.
s
s
Options
s
s
s
s
s
Remote on-off
Choice of on/off configuration
Short pin: 2.8 mm
±
0.25 mm (0.110 in.
±
0.010 in.)
Synchronization (cannot be ordered on units with
remote on/off)
Output voltage adjust: 90% to 110% of V
O, nom
(single outputs only)
Tight output voltage tolerance
Applications
s
s
s
s
Telecommunications
Distributed power architectures
Private branch exchange (PBX)
Voice and data multiplexing
s
s
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 outputs.
The outputs are isolated from the input, allowing versatile polarity configurations and grounding connections.
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 filtering.
*
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:
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W
Data Sheet
August 1998
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
Input Voltage:
Continuous
Transient (100 ms)
Operating Case Temperature
(See Derating Curves, Figures 43—45.)
Storage Temperature
I/O Isolation
Device
LC
LW
LW
All
All
All
Symbol
V
I
V
I
V
I, trans
T
C
T
stg
—
Min
0
0
0
–40
–55
—
Typ
—
—
—
—
—
—
Max
50
80
100
105*
125
1500
Unit
Vdc
Vdc
V
°C
°C
Vdc
* Maximum case temperature varies based on power dissipation. See derating curves, Figures 43—45, for details.
Electrical Specifications
Table 1. Input Specifications
Parameter
Operating Input Voltage
Maximum Input Current
(V
I
= 0 to V
I, max
; I
O
= I
O, max
; see Figures
1—4.)
Inrush Transient
Input Reflected-ripple Current
(5 Hz to 20 MHz; 12
µH
source imped-
ance; T
A
= 25
°C;
see Figure 33.)
Input Ripple Rejection (100 Hz—120 Hz)
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 manufacturer’s data for further information.
Device
LC
LW
LC
LW
All
All
Symbol
V
I
V
I
I
I, max
I
I, max
I
2
t
I
I
Min
18
36
—
—
—
—
Typ
24
48
—
—
—
5
Max
36
75
1.6
800
0.2
—
Unit
Vdc
Vdc
A
mA
A
2
s
mAp-p
All
—
—
45
—
dB
2
Lucent Technologies Inc.
Data Sheet
August 1998
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
Electrical Specifications
(continued)
Table 2. Output Specifications
Parameter
Output Voltage Set Point
(V
I
= V
I, nom
; I
O
= I
O, max
; T
A
= 25
°C)
Device Code
or Suffix
D
G*
F
A
B
C
AJ
BK
CL
Output Voltage
(Over all line, load, and temperature
conditions until end of life; see
Figures 35 and 37.)
D
G*
F
A
B
C
AJ
BK
CL
Output Regulation
(See Figures 5—11):
Line (V
I
= V
I, min
to V
I, max
)
Load (I
O
= I
O, min
to I
O, max
)
Load (I
O
= I
O, min
to I
O, max
)
Temperature
(T
C
= –40
°C
to +85
°C)
Output Ripple and Noise
(Across 2 x 0.47
µF
ceramic capaci-
tors; see Figures 34 and 36.):
RMS
Symbol
V
O, set
V
O, set
V
O, set
V
O, set
V
O, set
V
O, set
V
O1, set
V
O2, set
V
O1, set
V
O2, set
V
O1, set
V
O2, set
V
O, set
V
O, set
V
O, set
V
O, set
V
O, set
V
O, set
V
O1, set
V
O2, set
V
O1, set
V
O2, set
V
O1, set
V
O2, set
Min
1.92
—
3.17
4.85
11.52
14.40
4.75
–4.75
11.40
–11.40
14.25
–14.25
1.90
—
3.13
4.80
11.40
14.25
4.5
–4.5
10.80
–10.80
13.50
–13.50
Typ
2.0
2.5
3.3
5.0
12.0
15.0
5.0
–5.0
12.0
–12.0
15.0
–15.0
—
2.5
—
—
—
—
—
—
—
—
—
—
Max
2.08
—
3.43
5.20
12.48
15.60
5.25
–5.25
12.60
–12.60
15.75
–15.75
2.10
—
3.47
5.25
12.60
15.75
5.5
–5.5
13.20
–13.20
16.50
–16.50
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
A, F, D, G*
B, C
Lx010 A, F, D, G*
B, C
Lx015 A, F, D, G*
B, C
A, F, D, G*
B, C
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.01
—
0.1
—
0.1
25
0.5
5
0.1
10
0.2
15
0.2
100
2.0
mV
%V
O
mV
%V
O
mV
%V
O
mV
%V
O
Peak-to-peak (5 Hz to 20 MHz)
External Load Capacitance
A, D, F, G*
AJ, B, C
BK, CL
A, D, F, G*
AJ, B, C
BK, CL
A, F, D, G*
B, C
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
30
35
50
100
120
150
1000
200
mVrms
mVrms
mVrms
mVp-p
mVp-p
mVp-p
µF
µF
* For a 2.5 V output, use the 2 V output module (D code) with an output voltage trim pin (optional feature).
Lucent Technologies Inc.
3
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
Data Sheet
August 1998
Electrical Specifications
(continued)
Table 2. Output Specifications
(continued)
Parameter
Output Current
(At I
O
< I
O, min
, the modules may
exceed output ripple specifications,
but operation is guaranteed.)
Note:
On the Lx01xF, the output
voltage may exceed
specifications when
I
O
< I
O, min
.
Device Code
or Suffix
Lx015D
Lx015F
Lx015A
Lx015B
Lx015C
Lx010D, G*
Lx010F
Lx010A
Lx010B
Lx010C
Lx010AJ
Lx010BK
Lx010CL
Lx015D
Lx015F
Lx015A
Lx015B
Lx015C
Lx010D, G*
Lx010F
Lx010A
Lx010B
Lx010C
Lx010AJ
Lx010BK
Lx010CL
Lx015D
Lx015F
Lx015A
Lx015B
Lx015C
Lx010D, G*
Lx010F
Lx010A
Lx010B
Lx010C
Lx010AJ
Lx010BK
Lx010CL
Symbol
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O1
, I
O2
I
O1
, I
O2
I
O1
, I
O2
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O1
, I
O2
I
O1
, I
O2
I
O1
, I
O2
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O1
, I
O2
I
O1
, I
O2
I
O1
, I
O2
Min
0.35
0.25
0.15
0.12
0.10
0.2
0.15
0.1
0.08
0.06
0.1
0.06
0.05
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Typ
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Max
3.0
3.0
3.0
1.25
1.0
2.0
2.42
2.0
0.83
0.67
1.0
0.42
0.33
7.5
6.5
5
3.1
2.5
7.0
5
4
2.5
2
4.0
2.5
2.5
8.5
8.5
7.5
4.5
4.5
8
7.5
6
3.5
3.5
6.0
3.5
3.5
Unit
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Output Current-limit Inception
(V
O
= 90% V
O, set
; see Figures
12—14.)
Output Short-circuit Current
(V
O
= 0.25 V)
* For a 2.5 V output, use the 2 V output module (D code) with an output voltage trim pin (optional feature).
4
Lucent Technologies Inc.
Data Sheet
August 1998
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
Electrical Specifications
(continued)
Table 2. Output Specifications
(continued)
Parameter
Efficiency
(V
I
= V
I, nom
; I
O
= I
O, max
; T
A
= 25
°C;
see Figures 15—28, 35, and 37.)
Device Code
or Suffix
LC015D
LC015F
LC015A
LC015B, C
LC010D, G*
LC010F
LC010A, B, C
LC010AJ, BK, CL
LW015D
LW015F
LW015A
LW015B, C
LW010D, G*
LW010F
LW010A, B, C
LW010AJ, BK, CL
LC015F
LC015A
LW015F
LW015A
All
Symbol
η
η
η
η
η
η
η
η
η
η
η
η
η
η
η
η
η
η
η
η
—
Min
64
74
77
73
65
71
75
75
66
76
79
75
67
73
77
77
—
—
—
—
—
Typ
67
77
80
76
68
75
79
78
69
79
82
78
70
76
81
80
79
82
82
84
265
Max
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Unit
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
kHz
Efficiency
(V
I
= V
I, nom
; I
O
= 2 A; T
A
= 25
°C;
see Figures 15, 18, 22, and 25.)
Switching Frequency
Dynamic Response
(for duals: I
O1
or I
O2
= I
O, max
;
∆I
O
/∆t = 1A/10
µs;
V
I
= V
I, nom
;
T
A
= 25
°C;
see Figures 29 and 30.):
Load Change from I
O
= 50% to 75%
of I
O, max
:
Peak Deviation
Settling Time
(V
O
< 10% of peak deviation)
Load Change from I
O
= 50% to 25%
of I
O, max
:
Peak Deviation
Settling Time
(V
O
< 10% of peak deviation)
All
All
—
—
—
—
2
0.8
—
—
%V
O, set
ms
All
All
—
—
—
—
2
0.8
—
—
%V
O, set
ms
* For a 2.5 V output, use the 2 V output module (D code) with an output voltage trim pin (optional feature).
Table 3. Isolation Specifications
Parameter
Isolation Capacitance
Isolation Resistance
Min
—
10
Typ
600
—
Max
—
—
Unit
pF
MΩ
Lucent Technologies Inc.
5
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