MACOM LW015C Power modules: 18 vdc to 36 vdc or 36 vdc to 75 vdc inputs, 10 w and 15 w Datasheet

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
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.
Options
■
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 VO, nom
(single outputs only)
■
Tight output voltage tolerance
■
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
Applications
■
Telecommunications
■
Distributed power architectures
■
Private branch exchange (PBX)
■
Voice and data multiplexing
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 absolute 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
Symbol
Min
Typ
Max
Unit
LC
LW
LW
All
VI
VI
VI, trans
TC
0
0
0
–40
—
—
—
—
50
80
100
105*
Vdc
Vdc
V
°C
All
All
Tstg
—
–55
—
—
—
125
1500
°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
(VI = 0 to VI, max; IO = IO, max; see Figures
1—4.)
Inrush Transient
Input Reflected-ripple Current
(5 Hz to 20 MHz; 12 µH source impedance; TA = 25 °C; see Figure 33.)
Input Ripple Rejection (100 Hz—120 Hz)
Device
Symbol
Min
Typ
Max
Unit
LC
LW
LC
LW
VI
VI
18
36
—
—
24
48
—
—
36
75
1.6
800
Vdc
Vdc
A
mA
All
II, max
II, max
—
—
0.2
All
I2t
II
—
5
—
A2s
mAp-p
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 fusing 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.
2
Tyco Electronics Corp.
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
(VI = VI, nom; IO = IO, max; TA = 25 °C)
Device Code
or Suffix
Symbol
Min
Typ
Max
Unit
VO, set
VO, set
VO, set
VO, set
VO, set
VO, set
VO1, set
VO2, set
VO1, set
VO2, set
VO1, set
VO2, set
VO, set
VO, set
VO, set
VO, set
VO, set
VO, set
VO1, set
VO2, set
VO1, set
VO2, set
VO1, set
VO2, set
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
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
—
—
—
—
—
—
—
—
—
—
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
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
%VO
mV
%VO
mV
%VO
mV
%VO
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
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 (VI = VI, min to VI, max)
Load (IO = IO, min to IO, max)
Load (IO = IO, min to IO, max)
Temperature
(TC = –40 °C to +85 °C)
Output Ripple and Noise
(Across 2 x 0.47 µF ceramic capacitors; see Figures 34 and 36.):
RMS
Peak-to-peak (5 Hz to 20 MHz)
External Load Capacitance
* For a 2.5 V output, use the 2 V output module (D code) with an output voltage trim pin (optional feature).
Tyco Electronics Corp.
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 IO < IO, min, the modules may
exceed output ripple specifications,
but operation is guaranteed.)
Note: On the Lx01xF, the output
voltage may exceed
specifications when
IO < IO, min.
Output Current-limit Inception
(VO = 90% VO, set; see Figures
12—14.)
Output Short-circuit Current
(VO = 0.25 V)
Device Code
or Suffix
Symbol
Min
Typ
Max
Unit
Lx015D
Lx015F
Lx015A
Lx015B
Lx015C
IO
IO
IO
IO
IO
0.35
0.25
0.15
0.12
0.10
—
—
—
—
—
3.0
3.0
3.0
1.25
1.0
A
A
A
A
A
Lx010D, G*
Lx010F
Lx010A
Lx010B
Lx010C
IO
IO
IO
IO
IO
0.2
0.15
0.1
0.08
0.06
—
—
—
—
—
2.0
2.42
2.0
0.83
0.67
A
A
A
A
A
Lx010AJ
Lx010BK
Lx010CL
Lx015D
Lx015F
Lx015A
Lx015B
Lx015C
IO1, IO2
IO1, IO2
IO1, IO2
IO
IO
IO
IO
IO
0.1
0.06
0.05
—
—
—
—
—
—
—
—
—
—
—
—
—
1.0
0.42
0.33
7.5
6.5
5
3.1
2.5
A
A
A
A
A
A
A
A
Lx010D, G*
Lx010F
Lx010A
Lx010B
Lx010C
IO
IO
IO
IO
IO
—
—
—
—
—
—
—
—
—
—
7.0
5
4
2.5
2
A
A
A
A
A
Lx010AJ
Lx010BK
Lx010CL
Lx015D
Lx015F
Lx015A
Lx015B
Lx015C
IO1, IO2
IO1, IO2
IO1, IO2
IO
IO
IO
IO
IO
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4.0
2.5
2.5
8.5
8.5
7.5
4.5
4.5
A
A
A
A
A
A
A
A
Lx010D, G*
Lx010F
Lx010A
Lx010B
Lx010C
IO
IO
IO
IO
IO
—
—
—
—
—
—
—
—
—
—
8
7.5
6
3.5
3.5
A
A
A
A
A
Lx010AJ
Lx010BK
Lx010CL
IO1, IO2
IO1, IO2
IO1, IO2
—
—
—
—
—
—
6.0
3.5
3.5
A
A
A
* For a 2.5 V output, use the 2 V output module (D code) with an output voltage trim pin (optional feature).
4
Tyco Electronics Corp.
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
Efficiency
(VI = VI, nom; IO = IO, max; TA = 25 °C;
see Figures 15—28, 35, and 37.)
Efficiency
(VI = VI, nom; IO = 2 A; TA = 25 °C;
see Figures 15, 18, 22, and 25.)
Switching Frequency
Dynamic Response
(for duals: IO1 or IO2 = IO, max;
∆IO/∆t = 1A/10 µs; VI = VI, nom;
TA = 25 °C; see Figures 29 and 30.):
Load Change from IO = 50% to 75%
of IO, max:
Peak Deviation
Settling Time
(VO < 10% of peak deviation)
Load Change from IO = 50% to 25%
of IO, max:
Peak Deviation
Settling Time
(VO < 10% of peak deviation)
Device Code
or Suffix
Symbol
Min
Typ
Max
Unit
LC015D
LC015F
LC015A
LC015B, C
η
η
η
η
64
74
77
73
67
77
80
76
—
—
—
—
%
%
%
%
LC010D, G*
LC010F
LC010A, B, C
LC010AJ, BK, CL
η
η
η
η
65
71
75
75
68
75
79
78
—
—
—
—
%
%
%
%
LW015D
LW015F
LW015A
LW015B, C
η
η
η
η
66
76
79
75
69
79
82
78
—
—
—
—
%
%
%
%
LW010D, G*
LW010F
LW010A, B, C
LW010AJ, BK, CL
LC015F
LC015A
LW015F
LW015A
All
η
η
η
η
η
η
η
η
—
67
73
77
77
—
—
—
—
—
70
76
81
80
79
82
82
84
265
—
—
—
—
—
—
—
—
—
%
%
%
%
%
%
%
%
kHz
All
All
—
—
—
—
2
0.8
—
—
%VO, set
ms
All
All
—
—
—
—
2
0.8
—
—
%VO, 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
Tyco Electronics Corp.
Min
Typ
Max
Unit
—
10
600
—
—
—
pF
M¾
5
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 4. General Specifications
Parameter
Calculated MTBF (IO = 80% of IO, max; TC = 40 °C):
Lx010
Lx015
Weight
Hand Soldering
(soldering iron 3 mm (0.125 in.) tip, 425 °C)
Min
Typ
Max
Unit
—
—
—
—
7,800,000
5,400,000
—
—
—
—
28.3 (1.0)
12
hours
hours
g (oz.)
s
Table 5. Feature Specifications
Parameter
Remote On/Off Signal Interface (optional):
(VI = 0 V to VI, max; open collector or
equivalent compatible; signal referenced to
VI(–) terminal. See Figure 38 and Feature
Descriptions.):
Positive Logic— Device Code Suffix “4”:
Logic Low—Module Off
Logic High—Module On
Negative Logic— Device Code Suffix “1”:
Logic Low—Module On
Logic High—Module Off
Module Specifications:
On/Off Current—Logic Low
On/Off Voltage:
Logic Low
Logic High (Ion/off = 0)
Open Collector Switch Specifications:
Leakage Current During Logic High
(Von/off = 10 V)
Output Low Voltage During Logic Low
(Ion/off = 1 mA)
Turn-on Delay and Rise Times
(At 80% of IO, max; TA = 25 °C; see Figures 31
and 32.):
Case 1: On/Off Input Is Set for Unit On and
then Input Power Is Applied (delay from
point at which VI = VI, min until VO = 10% of
VO, nom).
Case 2: Input Power Is Applied for at Least
One Second, and then the On/Off Input Is
Set to Turn the Module On (delay from
point at which on/off input is toggled until
VO = 10% of VO, nom).
Output Voltage Rise Time
(time for VO to rise from 10% of VO, nom to
90% of VO, nom)
Output Voltage Overshoot
(at 80% of IO, max; TA = 25 °C)
6
Device Code
or Suffix
Symbol
Min
Typ
Max
Unit
All
Ion/off
—
—
1.0
mA
All
All
Von/off
Von/off
–0.7
—
—
—
1.2
10
V
V
All
Ion/off
—
—
50
µA
All
Von/off
—
—
1.2
V
All
Tdelay
—
5
20
ms
All
Tdelay
—
1
10
ms
All
Trise
—
0.2
5
ms
All
—
—
—
5
%
Tyco Electronics Corp.
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 5. Feature Specifications (continued)
Device Code
or Suffix
Parameter
Output Voltage Set-point Adjustment Range
(optional: single outputs only)
A, B, F
C
D
D
F
A
B
C
AJ
Output Overvoltage Clamp
(VO, clamp may be set higher on units with output voltage set-point adjustment option.)
Min
Typ
Max
Unit
—
—
—
90
90
90
2.60
3.7
5.6
13.2
16.5
5.6
–5.6
13.2
–13.2
16.5
–16.5
11
20
—
—
—
—
—
—
—
—
—
—
—
—
—
—
14
27
110
100
125
4.0
5.7
7.0
16.0
21.0
7.0
–7.0
18.0
–18.0
21.0
–21.0
—
—
%VO, nom
%VO, nom
%VO, nom
V
V
V
V
V
V
V
V
V
V
V
V
V
VO, clamp
VO, clamp
VO, clamp
VO, clamp
VO, clamp
VO1, clamp
VO2, clamp
VO1, clamp
VO2, clamp
VO1, clamp
VO2, clamp
Vuvlo
Vuvlo
BK
CL
Undervoltage Lockout
Symbol
LCxxx
LWxxx
Characteristic Curves
1.4
1.2
INPUT CURRENT, II (A)
0.9
INPUT CURRENT, II (A)
0.8
0.7
0.6
0.5
0.4
1.0
0.8
0.6
0.4
0.3
0.2
0.2
0.0
0
5
10
15
20
25
30
35
40
0.1
0.0
INPUT VOLTAGE, V I (V)
0
5
10
15
20
25
30
35
40
INPUT VOLTAGE, V I (V)
8-1785(C)
8-1786(C)
Figure 2. LC015 Input Current vs. Input Voltage at
IO = IO, max and TC = 25 °C
Figure 1. LC010 Input Current vs. Input Voltage at
IO = IO, max and TC = 25 °C
Tyco Electronics Corp.
7
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
Characteristics Curves (continued)
OUTPUT VOLTAGE 1, VO1(V)
5.15
0.50
0.45
INPUT CURRENT, II (A)
Data Sheet
August 1998
0.40
0.35
0.30
0.25
0.20
0.15
5.10
VI = LOW LINE
VI = NOM LINE
VI = HIGH LINE
5.05
5.00
4.95
0.10
0.05
4.90
0.0
0.00
0
10
20
30
40
50
60
70
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9 1.0
80
OUTPUT CURRENT 1, IO1 (A)
INPUT VOLTAGE, V I (V)
8-1790(C)
8-1787(C)
Figure 3. LW010 Input Current vs. Input Voltage at
IO = IO, max and TC = 25 °C
0.7
Note: Output2 has characteristics similar to output1 when
IO1 = 0.5 A and IO2 varies.
Figure 6. Lx010AJ Typical Load Regulation of
Output1 with Fixed IO2 = 0.5 A at
TC = 25 °C
0.5
5.25
0.4
0.3
0.2
0.1
0.0
0
10
20
30
40
50
60
70
80
INPUT VOLTAGE, V I (V)
OUTPUT VOLTAGE 1, VO1 (V)
INPUT CURRENT, II (A)
0.6
5.20
VI = LOW LINE
5.15
5.10
VI = NOM LINE
VI = HIGH LINE
5.05
5.00
8-1788(C)
Figure 4. LW015 Input Current vs. Input Voltage at
IO = IO, max and TC = 25 °C
4.95
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9 1.0
NORMALIZED OUTPUT VOLTAGE (VO/VO, set )
OUTPUT CURRENT 2, IO2 (A)
8-1791(C)
1.003
Note: Output2 has characteristics similar to output1 when
IO2 = 0.1 A and IO1 varies.
1.002
Figure 7. Lx010AJ Typical Cross Regulation,
VO1 vs. IO2 with Fixed IO1 = 0.1 A at
TC = 25 °C
1.001
VI = LOW LINE
1.000
0.999
VI = NOM LINE
VI = HIGH LINE
0.998
0.997
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
NORMALIZED OUTPUT CURRENT (IO/IO,
0.9 1.0
max)
8-1789(C)
Figure 5. Lx010x/Lx015x Single-Output Load
Regulation, Normalized Output Voltage
vs. Normalized Output Current at
TC = 25 °C
8
Tyco Electronics Corp.
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
Characteristics Curves (continued)
NORMALIZED
OUTPUT VOLTAGE 1 (VO1/VO1, set )
1.023
OUTPUT VOLTAGE 1, VO1 (V)
5.00
4.95
4.90
4.85
VI = HIGH LINE
VI = NOM LINE
VI = LOW LINE
4.80
4.75
0.0
1.020
1.016
1.013
1.010
IO = IO, min
IO = IO, max
1.007
VI = LOW LINE
VI = NOM LINE
VI = HIGH LINE
1.003
1.000
0.996
0.0
0.15
0.30
0.45
0.60
0.75
0.90
NORMALIZED OUTPUT CURRENT 2 (IO2/IO2,
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
1.05
max)
8-1794(C)
0.9 1.0
Note: Output2 has characteristics similar to output1 when
IO2 = IO, min and IO1 varies.
OUTPUT CURRENT 2, IO2 (A)
8-1792(C)
Note: Output2 has characteristics similar to output1 when
IO2 = 1.0 A and IO1 varies.
Figure 10. Lx010BK, CL Typical Cross Regulation,
Normalized VO1 vs. Normalized IO2 with
Fixed IO1 = IO, min at TC = 25 °C
Figure 8. Lx010AJ Typical Cross Regulation,
VO1 vs. IO2 with Fixed IO1 = 1.0 A at
TC = 25 °C
NORMALIZED
OUTPUT VOLTAGE 1 (VO1/VO1,
NORMALIZED OUTPUT VOLTAGE 1 (VO1/VO1, set )
set)
1.006
1.020
1.016
VI = NOM LINE
1.013
VI = LOW LINE
1.010
1.006
1.003
1.000
0.996
IO = IO, min
IO = IO, max
0.993
0.987
0.980
VI = LOW LINE
VI = NOM LINE
VI = HIGH LINE
0.973
0.966
IO = IO, min
IO = IO, max
0.960
0.953
0.0
0.15
0.30
0.45
0.60
0.75
0.90
1.05
VI = HIGH LINE
0.993
0.990
0.0
1.000
NORMALIZED OUTPUT CURRENT 2 (IO2/IO2,
0.15
0.30
0.45
0.60
0.75
NORMALIZED OUTPUT CURRENT (IO1/IO1,
0.90
max)
1.05
8-1795(C)
Note: Output2 has characteristics similar to output1 when
IO2 = IO, max and IO1 varies.
max)
8-1793(C)
Note: Output2 has characteristics similar to output1 when
IO1 = (0.5 * IO, max) and IO2 varies.
Figure 11. Lx010BK, CL Typical Cross Regulation,
Normalized VO1 vs. Normalized IO2 with
Fixed IO1 = IO, max at TC = 25 °C
Figure 9. Lx010BK, CL Load Regulation of Output1
with Fixed IO2 = 0.5 * IO, max at TC = 25 °C,
Normalized VO1 vs. Normalized Current IO1
Tyco Electronics Corp.
9
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
NORMALIZED OUTPUT VOLTAGE 1 (VO1/VO1, set )
NORMALIZED OUTPUT VOLTAGE (VO/VO,
set)
Characteristics Curves (continued)
1.2
1.0
0.8
VI = LOW LINE
VI = NOM LINE
VI = HIGH LINE
0.6
0.4
0.2
0.0
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.0
0.5
VI = LOW LINE
VI = NOM LINE
VI = HIGH LINE
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
max)
8-1796(C)
Figure 12. Lx010x/Lx015x Single-Output
Normalized Output Current vs.
Normalized Output Voltage at
TC = 25 °C
4.0
NORMALIZED OUTPUT CURRENT 1
WITH OUTPUT CURRENT 2
SET TO IO, max (IO1/IO1, max)
1.75 2.00
OUTPUT CURRENT NORMALIZED TO IO, max (IO/IO,
Data Sheet
August 1998
8-1798(C)
Note: Output2 has characteristics similar to output1 when
output1 is set to IO, max.
Figure 14. Lx010xx Dual-Output Normalized Output
Current vs. Normalized Output Voltage
at TC = 25 °C with Other Output at
IO = IO, max
86
84
EFFICIENCY, η (%)
NORMALIZED
OUTPUT VOLTAGE 1 (VO1/VO1, set )
1.0
0.5
VI = NOM LINE
VI = LOW LINE
VI = HIGH LINE
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
82
80
78
74
72
70
0.0
NORMALIZED OUTPUT CURRENT 1
WITH OUTPUT CURRENT 2
SET TO IO, min (IO1/IO1, max)
VI = 18 V
VI = 20 V
VI = 27 V
VI = 36 V
76
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT, IO (A)
8-1797(C)
Note: Output2 has characteristics similar to output1 when
output1 is set to IO, min.
Figure 13. Lx010xx Dual-Output Normalized Output
Current vs. Normalized Output Voltage
at TC = 25 °C with Other Output at IO, min
10
8-1800(C)
Figure 15. LC015A Typical Efficiency vs. Output
Current at TC = 25 °C
Tyco Electronics Corp.
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
Characteristics Curves (continued)
82
80
EFFICIENCY, η (%)
85
EFFICIENCY, η (%)
80
75
70
76
VI = 36 V
VI = 27 V
VI = 18 V
74
72
VI = 18 V
VI = 27 V
VI = 36 V
65
78
70
0.0
0.1
0.2
0.3
0.4
0.6
0.5
0.7
0.8
NORMALIZED OUTPUT CURRENT (IO/IO,
60
0.0
0.16
0.32
0.48
0.64
0.80
NORMALIZED OUTPUT CURRENT (IO/IO,
0.9 1.0
max)
8-1803(C)
0.96
max)
8-1801(C)
Figure 19. LC010A, B, C Typical Efficiency vs.
Normalized Output Current at TC = 25 °C
Figure 16. LC015B, C Typical Efficiency vs.
Normalized Output Current at TC = 25 °C
80
75
EFFICIENCY, η (%)
72
EFFICIENCY, η (%)
70
68
66
64
70
65
60
55
VI = 36 V
VI = 27 V
VI = 18 V
50
45
62
VI = 36 V
60
VI = 18 V
40
0.0
VI = 27 V
0.5
1.0
1.5
2.0
2.5
OUTPUT CURRENT, IO (A)
58
0
0.5
1
1.5
2
2.5
3
OUTPUT CURRENT, IO (A)
8-2049(C)
8-1804(C)
Figure 20. LC010F Typical Efficiency vs. Output
Current at TC = 25 °C
Figure 17. LC010D and LC015D Typical Efficiency
vs. Output Current at TC = 25 °C
80
78
76
EFFICIENCY, η (%)
82
EFFICIENCY, η (%)
80
78
76
74
72
70
VI = 36 V
68
VI = 24 V
66
VI = 18 V
64
62
74
VI = 36 V
VI = 27 V
VI = 18 V
72
60
0.10
0.5
1.0
1.5
2.0
2.5
0.35
0.47
0.59
0.71
0.83
0.95
NORMALIZED OUTPUT CURRENT,
IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]
70
0.0
0.23
3.0
8-1805(C)
OUTPUT CURRENT, IO (A)
8-1802(C)
Figure 21. LC010AJ, BK, CL Typical Efficiency vs.
Normalized Output Current at TC = 25 °C
Figure 18. LC015F Typical Efficiency vs. Output
Current at TC = 25 °C
Tyco Electronics Corp.
11
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
Characteristics Curves (continued)
Data Sheet
August 1998
85
80
EFFICIENCY, η (%)
90
EFFICIENCY, η (%)
85
80
75
VI = 75 V
VI = 48 V
VI = 36 V
70
75
VI = 75 V
VI = 48 V
VI = 36 V
70
65
60
0.0
65
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT, IO (A)
60
0.0
0.5
1.0
1.5
2.0
2.5
8-1861(C)
3.0
OUTPUT CURRENT, IO (A)
8-1864(C)
Figure 25. LW015F Typical Efficiency vs. Output
Current at TC = 25 °C
Figure 22. LW015A Typical Efficiency vs. Output
Current at TC = 25 °C
82
80
EFFICIENCY, η (%)
82
EFFICIENCY, η (%)
80
78
76
VI = 75 V
VI = 48 V
VI = 36 V
74
70
0.0
72
70
0.05
76
72
VI = 75 V
VI = 48 V
VI = 36 V
74
78
0.14
0.20
0.43
0.57
0.71
0.86
1.0
NORMALIZED OUTPUT CURRENT (IO/IO, max )
0.19
0.33
0.5
0.66
0.83
8-1860(C)
1.0
NORMALIZED OUTPUT CURRENT (IO/IO, max )
8-1863(C)
Figure 26. LW010A, B, C Typical Efficiency vs.
Normalized Output Current at TC = 25 °C
Figure 23. LW015B, C Typical Efficiency vs.
Normalized Output Current at TC = 25 °C
80
78
76
EFFICIENCY, η (%)
80
EFFICIENCY, η (%)
70
60
50
VI = 75 V
VI = 48 V
VI = 36 V
40
74
72
70
68
VI = 75 V
VI = 48 V
VI = 36 V
66
64
62
30
60
0.0
20
0.5
1.0
1.5
2.0
2.5
OUTPUT CURRENT, IO (A)
10
0.0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT, IO (A)
8-1862(C)
8-1859(C)
Figure 27. LW010F Typical Efficiency vs. Output
Current at TC = 25 °C
Figure 24. LW010D, 015D Typical Efficiency vs.
Output Current at TC = 25 °C
12
Tyco Electronics Corp.
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
NORMALIZED OUTPUT VOLTAGE;
VO/VO, set SINGLE OUTPUTS,
VO1/VO1, set DUAL OUTPUTS
Characteristics Curves (continued)
85
EFFICIENCY, η (%)
80
75
70
VI = 75 V
VI = 48 V
VI = 36 V
65
60
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9 1.0
NORMALIZED OUTPUT CURRENT,
IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]
8-1858(C)
Figure 28. LW010AJ, BK, CL Typical Efficiency vs.
Normalized Output Current at TC = 25 °C
1.0
0
1.0
INPUT VOLTAGE
(VI/VI, nom )
Data Sheet
August 1998
0
TIME, t (2 ms/div)
8-1806(C)
1.01
0.75
0.50
TIME, t (100 µs/div)
8-1857(C)
LOAD CURRENT
(IO/IO, max )
NORMALIZED
OUTPUT VOLTAGE(V O/VO,
set)
Figure 29. Single-Output Typical Output Voltage for
Step Load Change from 50% to 75% of
IO = IO, max
NORMALIZED
OUTPUT VOLTAGE;
VO/VO, set SINGLE OUTPUTS,
VO1/VO1, set DUAL OUTPUTS
1.0
0.99
REMOTE ON/OFF,
VON/OFF (V)
(2 V/div)
LOAD CURRENT
(IO/IO, max )
NORMALIZED
OUTPUT VOLTAGE (VO/VO,
set)
Figure 31. Typical Output Voltage Start-Up when
Input Voltage Is Applied; IO = 80% of
IO, max, VI = Nominal Line
1.0
0.0
4.0
2.0
0
1.01
TIME, t (1 ms/div)
1.0
8-1807(C).a
0.99
Figure 32. Typical Output Voltage Start-Up when
Signal Is applied to Remote On/Off;
IO = 80% of IO, max
0.50
0.25
TIME, t (100 µs/div)
8-1856(C)
Figure 30. Single-Output Typical Output Voltage for
Step Load Change from 50% to 25% of
IO = IO, max
Tyco Electronics Corp.
13
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
Test Configurations
COPPER STRIP
VO1(+ )
TO OSCILLOSCOPE
CURRENT
PROBE
LTEST
12 µH
CS 220 µF
IMPEDANCE < 0.1 Ω
@ 20 ˚C, 100 kHz
BATTERY
0.47 µF
0.47 µF
SCOPE
RLOAD1
0.47 µF
0.47 µF
SCOPE
RLOAD2
VI(+)
COM
33 µF
VI(-)
VO2(-)
8-203(C)
Note: Input reflected-ripple current is measured with a simulated
source impedance of 12 µH. Capacitor Cs offsets possible
battery impedance. Current is measured at the input of the
module.
Figure 33. Input Reflected-Ripple Test Setup
8-808(C).d
Note: Use four 0.47 µF ceramic capacitors. Scope measurement
should be made using a BNC socket. Position the load
between 50 mm and 75 mm (2 in. and 3 in.) from the module.
Figure 36. Peak-to-Peak Output Noise
Measurement Test Setup for Dual
Outputs
COPPER STRIP
V O (+)
0.47 µF
CONTACT AND
DISTRIBUTION LOSSES
RESISTIVE
LOAD
0.47 µF SCOPE
VI(+)
V O (–)
VO1
IO
II
LOAD
COM
SUPPLY
LOAD
8-513(C).g
Note: Use two 0.47 µF ceramic capacitors. Scope measurement
should be made using a BNC socket. Position the load
between 50 mm and 75 mm (2 in. and 3 in.) from the module.
8-863(C).a
2
∑
CONTACT AND
DISTRIBUTION LOSSES
[ V O J – COM ] I O J
=1
- x 100
η = J-------------------------------------------------[VI(+ ) – VI(–)]II
V O (+)
IO
II
LOAD
SUPPLY
V I (-)
VO2
Note: All measurements are taken at the module terminals. When
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
Figure 34. Peak-to-Peak Output Noise
Measurement Test Setup for Single
Outputs
V I (+)
VI(-)
CONTACT
RESISTANCE
V O (-)
CONTACT RESISTANCE
Figure 37. Output Voltage and Efficiency
Measurement Test Setup for Dual
Outputs
8-204(C)
Note: All measurements are taken at the module terminals. When
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
[ V O (+) – V O (–) ]I O
η =  ------------------------------------------------ × 100
 [ V I (+) – V I (–) ]I I 
Figure 35. Output Voltage and Efficiency
Measurement Test Setup for Single
Outputs
14
Tyco Electronics Corp.
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
Design Considerations
Current Limit
Input Source Impedance
To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting
circuitry and can endure current limiting for an unlimited duration. At the point of current-limit inception, the
unit shifts from voltage control to current control. If the
output voltage is pulled very low during a severe fault,
the current-limit circuit can exhibit either foldback or
tailout characteristics (output-current decrease or
increase). The unit operates normally once the output
current is brought back into its specified range.
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power module. If the source inductance exceeds 4 µH, a 33 µF
electrolytic capacitor (ESR < 0.7 ¾ at 100 kHz)
mounted close to the power module helps ensure
stability of the unit.
Safety Considerations
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standard,
i.e., UL 1950, CSA 22.2 No. 950-95, EN60950, and
IEC950.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), one of
the following must be true of the dc input:
■
All inputs are SELV and floating, with the output also
floating.
■
All inputs are SELV and grounded, with the output
also grounded.
■
Any non-SELV input must be provided with reinforced insulation from any other hazardous voltages,
including the ac mains, and must have a SELV reliability test performed on it in combination with the
converters.
The power module has extra-low voltage (ELV) outputs
when all inputs are ELV.
Remote On/Off (Optional)
Two remote on/off options are available. Positive logic,
device code suffix “4”, remote on/off turns the module
on during a logic-high voltage on the remote ON/OFF
pin, and off during a logic low. Negative logic, device
code suffix “1”, remote on/off turns the module off during a logic high and on during a logic low.
To turn the power module on and off, the user must
supply a switch to control the voltage between the
on/off terminal and the VI(–) terminal (Von/off). The
switch may be an open collector or equivalent (see
Figure 38). A logic low is Von/off = –0.7 V to +1.2 V. The
maximum Ion/off during a logic low is 1 mA. The switch
should maintain a logic-low voltage while sinking 1 mA.
During a logic high, the maximum Von/off generated by
the power module is 10 V. The maximum allowable
leakage current of the switch at Von/off = 10 V is 50 µA.
The module has internal capacitance to reduce noise
at the ON/OFF pin. Additional capacitance is not generally needed and may degrade the start-up characteristics of the module.
The input to these units is to be provided with a maximum 5 A normal-blow fuse in the ungrounded lead.
VI(+)
VI(-)
Feature Descriptions
Von/off
Output Overvoltage Clamp
The output overvoltage clamp consists of control circuitry, independent of the primary regulation loop, that
monitors the voltage on the output terminals. This control loop has a higher voltage set point than the primary
loop (see Feature Specifications table). In a fault condition, the overvoltage clamp ensures that the output
voltage does not exceed VO, clamp, max. This provides a
redundant voltage-control that reduces the risk of
output overvoltage.
Tyco Electronics Corp.
+
Ion/off
REMOTE
ON/OFF
8-758(C).a
Figure 38. Remote On/Off Implementation
15
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
Feature Descriptions (continued)
Output Voltage Adjustment (Optional on
Single-Output Units)
Output voltage set-point adjustment allows the user to
increase or decrease the output voltage set point of a
module. This is accomplished by connecting an external resistor between the TRIM pin and either the VO(+)
or VO(–) pins. With an external resistor between the
TRIM and VO(+) pins (Radj-down), the output voltage set
point (VO, adj) decreases (see Figure 39). The following
equation determines the required external resistor
value to obtain an output voltage change from VO, nom to
VO, adj:
Lx010, 5A
Lx010, 5B
Lx010, 5C
Lx010, 5D
Lx010, 5F
G
H
K
L
5110
10,000
10,000
5110
5110
2050
5110
5110
2050
2050
2.5
9.5
NA
0.76
0.75
2.5
2.5
2.5
1.23
2.5
The combination of the output voltage adjustment
and the output voltage tolerance cannot exceed 110%
(125% for the D) of the nominal output voltage between
the VO(+) and VO(–) terminals.
VI(+)
R adj-down
Data Sheet
August 1998
VO(+)
( V O, adj – L ) G
= --------------------------------------- – H Ω
( V O, nom – V O, adj )
RLOAD
TRIM
where Radj-down is the resistance value connected
between TRIM and VO(+), and G, H, and L are defined
in the following table.
Radj-up
VI(-)
VO(-)
8-715(C).d
VI (+)
VO (+)
Figure 40. Circuit Configuration to Increase Output
Voltage
Radj-down
TRIM
RLOAD
VI (–)
VO(-)
8-715(C).e
Figure 39. Circuit Configuration to Decrease
Output Voltage
The L-Series power modules have a fixed current-limit
set point. Therefore, as the output voltage is adjusted
down, the available output power is reduced. In addition, the minimum output current is a function of the
output voltage. As the output voltage is adjusted down,
the minimum required output current can increase
(i.e., minimum power is constant).
Synchronization (Optional)
With an external resistor connected between the TRIM
and VO(–) pins (Radj-up), the output voltage set point
(VO, adj) increases (see Figure 40). The following equation determines the required external resistor value to
obtain an output voltage from VO, nom to VO, adj:
R adj-up
GL
=  ----------------------------------------- – H Ω
 [ ( V O, adj – L ) – K ]

With external circuitry, the unit is capable of synchronization from an independent time base with a switching
rate of 256 kHz. Other frequencies may be available;
please consult the factory for application guidelines
and/or a description of the external circuit needed to
use this feature.
where Radj-up is the resistance value connected
between TRIM and VO (–), and the values of G, H, K,
and L are shown in the following table:
16
Tyco Electronics Corp.
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
Thermal Considerations
Heat Transfer Characteristics
The power module operates in a variety of thermal
environments; however, sufficient cooling should be
provided to help ensure reliable operation of the unit.
Heat-dissipating components inside the unit are thermally coupled to the case. Heat is removed by conduction, convection, and radiation to the surrounding
environment. Proper cooling can be verified by measuring the case temperature. The case temperature
(TC) should be measured at the position indicated in
Figures 41 and 42.
Increasing airflow over the module enhances the heat
transfer via convection. Figures 43 through 45 show the
maximum power that can be dissipated by the module
without exceeding the maximum case temperature versus local ambient temperature (TA) for natural convection through 3.0 ms–1 (600 ft./min.).
15.2
(0.6)
10.2
(0.4)
Example
LW010/LC010
dc-dc POWER MODULE
IN
+
Systems in which these power modules are used typically generate natural convection airflow rates of
0.25 ms–1 (50 ft./min.) due to other heat dissipating
components in the system. Therefore, the natural convection condition represents airflow rates of approximately 0.25 ms–1 (50 ft./min.). Use of Figure 43 is
shown in the following example.
What is the minimum airflow necessary for an LW010A
operating at 48 V, an output current of 2.0 A, and a
maximum ambient temperature of 91 °C?
OUT
+
Solution:
8-1363(C).b
Note: Dimensions are in millimeters and (inches). Pin locations are
for reference only.
Figure 41. LW010 and LC010 Case Temperature
Measurement Location
Given: VI = 48 V, IO = 2.0 A (IO, max), TA = 91 °C
Determine PD (Figure 58): PD = 2.5 W
Determine airflow (Figure 43): v = 2.0 ms–1
(400 ft./min.)
5.1
(0.2)
5.1 (0.2)
IN
LW015/LC015
dc-dc POWER MODULE
+
OUT
+
8-1363(C).c
Note: Dimensions are in millimeters and (inches). Pin locations are
for reference only.
Figure 42. LW015 and LC015 Case Temperature
Measurement Location
Note that the views in Figures 41 and 42 are of the surface of the modules. The temperatures at these locations should not exceed the maximum case
temperature indicated on the derating curve. The output power of the module should not exceed the rated
power for the module as listed in the Ordering Information table.
Tyco Electronics Corp.
UNITS POWER DISSIPATION, PD (W)
3.5
MAXIMUM CASE TEMPERATURE
3
2.5
2
1.5
NATURAL CONVECTION
1.0 ms-1 (200 ft./min.)
2.0 ms-1 (400 ft./min.)
3.0 ms-1 (600 ft./min.)
1
0.5
0
40 45 50 55 60 65 70 75 80 85 90
95 100 105 110
MAX AMBIENT TEMPERATURE, TA (˚C)
8-1375(C).a
Figure 43. LW010/LC010 Forced Convection Power
Derating; Either Orientation
17
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
Thermal Considerations (continued)
Data Sheet
August 1998
4.5
UNITS POWER DISSIPATION, PD (W)
5
POWER DISSIPATION, PD (W)
4.0
MAXIMUM CASE TEMPERATURE
4.5
4
3.5
3
NATURAL CONVECTION
1.0 ms-1 (200 ft./min.)
2.0 ms-1 (400 ft./min.)
3.0 ms-1 (600 ft./min.)
2.5
2
1.5
3.5
3.0
VI = 27 V
2.5
VI = 36 V
2.0
1.5
VI = 20 V
1.0
VI = 18 V
0.5
1
0.0
0.0
0.5
0.5
0
0
10
20
30
40
50
60
70 80
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT, IO (A)
90 100 110 120
8-1382(C)
MAX AMBIENT TEMPERATURE, TA (˚C)
8-1377(C).a
Figure 44. LC015 Forced Convection Power
Derating; Either Orientation
Note: The power dissipation of this unit is shown at TC = TC, max
because the efficiency of this power module drops at high
temperatures.
Figure 46. LC015A Power Dissipation at Maximum
Case Temperature
6
MAXIMUM CASE TEMPERATURE
4.5
POWER DISSIPATION, PD (W)
UNITS POWER DISSIPATION, PD (W)
5
4
3.5
3
2.5
2
1.5
1
NATURAL CONVECTION
1.0 ms-1 (200 ft./min.)
2.0 ms-1 (400 ft./min.)
3.0 ms-1 (600 ft./min.)
0.5
0
40
50
60
70
80
90
100
110
MAX AMBIENT TEMPERATURE, TA (˚C)
8-1376(C).a
5
4
VI = 36 V
VI = 27 V
3
2
VI = 18 V
1
0
0.00
0.16
0.32
0.48
0.64
0.80
NORMALIZED OUTPUT CURRENT (IO/IO,
0.96
max)
8-1808(C)
Figure 45. LW015 Forced Convection Power
Derating; Either Orientation
18
Figure 47. LC015B, C Typical Power Dissipation vs.
Normalized Output Current at TC = 25 °C
Tyco Electronics Corp.
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
Thermal Considerations (continued)
POWER DISSIPATION, P D (W)
4.0
POWER DISSIPATION, P D(W)
4.0
3.5
3.0
VI = 36 V
2.5
VI = 27 V
2.0
1.5
1.0
3.5
3.0
2.5
VI = 36 V
2.0
1.5
1.0
VI = 27 V
VI = 18 V
0.5
0.0
0.0
VI = 18 V
0.5
0.1
0.2
0.3
0.4
0.5
0.6
0.8
0.7
NORMALIZED OUTPUT CURRENT (IO/IO,
0.9 1.0
max)
8-1811(C)
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT, IO (A)
8-1809(C)
Figure 50. LC010A, B, C Typical Power Dissipation
vs. Normalized Output Current at
TC = 25 °C
Figure 48. LC010D, 015D Typical Power Dissipation
vs. Output Current at TC = 25 °C
POWER DISSIPATION, P D (W)
POWER DISSIPATION, P D (W)
3.5
3.0
VI = 36 V
VI = 27 V
VI = 18 V
2.5
3.0
2.0
2.5
VI = 36 V
2.0
1.5
1.0
VI = 27 V
VI = 18 V
0.5
0.0
1.5
0.0
0.5
1.0
1.0
1.5
2.0
2.5
OUTPUT CURRENT, IO (A)
8-1812(C)
0.5
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Figure 51. LC010F Typical Power Dissipation vs.
Output Current at TC = 25 °C
OUTPUT CURRENT, I O (A)
3.5
Note: The power dissipation of this unit is shown at TC = TC, max
because the efficiency of this power module drops at high
temperatures.
Figure 49. LC015F Typical Power Dissipation vs.
Output Current at Maximum Case
Temperature
POWER DISSIPATION, P D (W)
8-1810(C)
3.0
2.5
2.0
1.5
VI = 36 V
VI = 24 V
VI = 18 V
1.0
0.5
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
NORMALIZED OUTPUT CURRENT,
IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]
8-1813(C)
Figure 52. LC010AJ, BK, CL Typical Power
Dissipation vs. Normalized Output
Current at TC = 25 °C
Tyco Electronics Corp.
19
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
Thermal Considerations (continued)
POWER DISSIPATION, PD (W)
2.5
4.5
POWER DISSIPATION, PD (W)
4.0
3.5
VI = 75 V
3.0
VI = 60 V
2.5
VI = 48 V
2.0
Data Sheet
August 1998
1.5
2.3
2.1
VI = 75 V
1.9
1.7
1.5
1.3
VI = 48 V
1.1
VI = 36 V
0.9
0.7
1.0
VI = 36 V
0.5
0.0
0.0
0.5
1.0
1.5
2.0
0.5
0.0
2.5
0.2
0.4
3.0
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
8-2109(C)
8-1383(C)
Note: The power dissipation of this unit is shown at TC = TC, max
because the efficiency of this power module drops at high
temperatures.
Figure 56. LW010D9 Typical Power Dissipation vs.
Output Current at TC = 25 °C with Output
Voltage Trimmed Up to 2.5 V
Figure 53. LW015A Power Dissipation at Maximum
Case Temperature
4.0
3.5
POWER DISSIPATION, PD (W)
POWER DISSIPATION, PD (W)
5.0
4.5
4.0
3.5
VI = 60 V
VI = 75 V
3.0
2.5
2.0
1.5
VI = 36 V
VI = 48 V
1.0
0.5
0.0
0.05
0.19
0.33
0.50
0.66
NORMALIZED OUTPUT CURRENT (IO/IO,
0.83
1.00
max)
8-1814(C)
Figure 54. LW015B, C Typical Power Dissipation vs.
Normalized Output Current at TC = 25 °C
VI = 60 V
2.5
2.0
VI = 75 V
VI = 48 V
1.5
1.0
VI = 36 V
0.5
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT, IO (A)
8-1385(C)
Note: The power dissipation of this unit is shown at TC = TC, max
because the efficiency of this power module drops at high
temperatures.
3.5
POWER DISSIPATION, P D (W)
3.0
3.0
2.5
Figure 57. LW015F Power Dissipation at Maximum
Case Temperature
VI = 60 V
VI = 75 V
2.0
1.5
1.0
VI = 36 V
VI = 48 V
0.5
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT, IO (A)
8-1815(C)
Figure 55. LW010D, LW015D Typical Power
Dissipation vs. Output Current at
TC = 25 °C
20
Tyco Electronics Corp.
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
Thermal Considerations (continued)
Module Derating
The derating curves in Figures 43 through 45 were
determined by measurements obtained in an experimental apparatus shown in Figure 61. Note that the
module and the printed-wiring board (PWB) that it is
mounted on are both vertically oriented. The passage
has a rectangular cross section.
POWER DISSIPATION, PD (W)
3.5
3.0
2.5
VI = 75 V
2.0
VI = 60 V
1.5
1.0
0.5
0.0
0.0
FACING PWB
VI = 48 V
PWB
VI = 36 V
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
MODULE
NORMALIZED OUTPUT CURRENT (IO/IO, max)
8-1380(C)
Figure 58. LW010A, B, C Typical Power Dissipation
vs. Normalized Output Current at
TC = 25 °C
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED
BELOW THE
MODULE
POWER DISSIPATION, P D (W)
3.5
3.0
2.5
AIRFLOW
76 (3.0)
VI = 60 V
VI = 75 V
2.0
1.5
13 (0.5)
1.0
VI = 36 V
VI = 48 V
0.5
0.0
0.0
0.5
1.0
8-1126(C).d
Note: Dimensions are in millimeters and (inches).
1.5
2.0
2.5
Figure 61. Experimental Test Setup
OUTPUT CURRENT, IO (A)
8-1816(C)
Figure 59. LW010F Typical Power Dissipation vs.
Output Current at TC = 25 °C
Layout Considerations
Copper paths must not be routed beneath the power
module standoffs.
POWER DISSIPATION, P D (W)
3.0
2.5
VI = 75 V
VI = 60 V
2.0
1.5
VI = 36 V
1.0
VI = 48 V
0.5
0.0
0.0
0.2
0.4
0.6
0.8
1.0
NORMALIZED OUTPUT CURRENT,
IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]
8-1817(C)
Figure 60. LW010AJ, BK, CL Typical Power
Dissipation vs. Normalized Output
Current at TC = 25 °C
Tyco Electronics Corp.
21
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
Outline Diagram
Dimensions are in millimeters and (inches).
Tolerance: x.x ± 0.5 mm (0.020 in.); x.xx ± 0.38 mm (0.015 in.).
If slightly lower height is needed, the four standoffs can be dropped through holes on the user’s PWB. By dropping
the standoffs through the PWB, the module height will be decreased to 9.5 mm (0.375 in.) typical height.
Top View
50.8 (2.00)
-
25.4
(1.00)
LC015A
DC-DC Power Module
IN
IN:DC 18-36V, 1.1A
+
OUT
OUT:DC 5V, 3A
MADE IN USA
+
Side View
0.51
(0.020)
10.16 (0.400)
MAX
5.84 (0.230)*
MIN
STANDOFF
DIAMETER 0.63 (0.025)
TYP, 4 PLACES
0.63 (0.025) x 0.63 (0.025)
SQUARE PIN,
ALL PLACES
Bottom View
7.62 (0.300)
0.32 (0.0125)
TYP
4
5.08
(0.200)
9.91
(0.39)
12.7
(0.500)
2
5
24.77
(0.975)
1
2.54
(0.100)
10.16
(0.400)
7.62
(0.300)
6
3
15.2
(0.60)
20.32 (0.800)
27.9 (1.10)
8-1329(C).b
* An optional short pin dimension is 2.8 mm ± 0.25 mm (0.110 in. ± 0.010 in.).
22
Pin
Function
Pin
Function
1
2
VI(–)
VI(+)
4
5
3
ON/OFF or SYNC (optional)
Pin is not present unless one of these
options is specified.
6
VO(+) or VO1(+)
COMMON (dual outputs) or
TRIM (optional on single outputs)
Pin is not present on single outputs unless
option is specified.
Pin is always present on dual outputs.
VO(–) or VO2(–)
Tyco Electronics Corp.
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
Recommended Hole Pattern
Component-side footprint.
Dimensions are in millimeters and (inches).
CASE OUTLINE
27.94
(1.10)
7.62
(0.300)
10.16
(0.400)
9.91
(0.39)
STANDOFF
5.08
(0.200)
24.77
20.32 (0.975)
(0.800)
7.62
(0.300)
25.4
(1.00)
2.54
(0.100)
15.2
(0.60)
20.32 (0.800)
50.8 (2.00)
8-1329(C).b
Ordering Information
Table 6. Device Codes
Input Voltage
18 V—36 V
18 V—36 V
18 V—36 V
36 V—75 V
18 V—36 V
18 V—36 V
18 V—36 V
18 V—36 V
18 V—36 V
18 V—36 V
18 V—36 V
18 V—36 V
18 V—36 V
36 V—75 V
36 V—75 V
36 V—75 V
36 V—75 V
36 V— 75 V
36 V—75 V
36 V—75 V
36 V—75 V
36 V—75 V
36 V—75 V
36 V—75 V
36 V—75 V
36 V—75 V
Tyco Electronics Corp.
Output Voltage
5V
12 V
15 V
2V
3.3 V
5V
12 V
15 V
2V
3.3 V
±5 V
±12 V
±15 V
5V
12 V
15 V
2V
3.3 V
5V
12 V
15 V
2V
3.3 V
±5 V
±12 V
±15 V
Output Power
15 W
15 W
15 W
6W
10 W
10 W
10 W
10 W
4W
8W
15 W
15 W
15 W
15 W
15 W
15 W
6W
10 W
10 W
10 W
10 W
4W
8W
10 W
10 W
10 W
Device Code
LC015A
LC015B
LC015C
LC015D
LC015F
LC010A
LC010B
LC010C
LC010D
LC010F
LC010AJ
LC010BK
LC010CL
LW015A
LW015B
LW015C
LW015D
LW015F
LW010A
LW010B
LW010C
LW010D
LW010F
LW010AJ
LW010BK
LW010CL
Comcode
107809550
107983140
TBD
TBD
107809543
107747925
107747933
107747941
107747958
107747966
107987083
107809592
TBD
107809527
107935413
107935421
107809501
107809535
107747974
107747982
107747990
107748006
107748014
107935405
107809568
TBD
23
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
Ordering Information (continued)
Optional features may be ordered using the device code suffixes shown below. The feature suffixes are listed
numerically in descending order. Please contact your Lucent Technologies Account Manager or Application Engineer for pricing and availability of options.
Table 7. Option Codes
Option
Output voltage adjustment
Short pin: 2.8 mm ± 0.25 mm
(0.110 in. ± 0.010 in.)
Short pin: 3.7 mm ± 0.25 mm
(0.145 in. ± 0.010 in.)
Positive logic remote on/off
Synchronization
(cannot be ordered on units
with remote on/off)
Negative logic remote on/off
Device Code Suffix
9
8
6
4
3
1
Tyco Electronics Power Systems, Inc.
3000 Skyline Drive, Mesquite, TX 75149, USA
+1-800-526-7819 FAX: +1-888-315-5182
(Outside U.S.A.: +1-972-284-2626, FAX: +1-972-284-2900)
http://power.tycoelectronics.com
Tyco Electronics Corporation reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.
No rights under any patent accompany the sale of any such product(s) or information.
© 2001 Tyco Electronics Corporation, Harrisburg, PA. All International Rights Reserved.
Printed in U.S.A.
August 1998
DS98-040EPS (Replaces DS97-027EPS)
Printed on
Recycled Paper
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