Data Sheet
October 23, 2003
Document No: DS03-111 ver. 2.0 (Replaces FDS01-074EPS)
PDF Name: smc_smw-series.pdf
SMC/SMW-Series Surface-Mount Power Modules:
18 Vdc to 36 Vdc and 36 Vdc to 75 Vdc Inputs, 10 W and 15 W
Features
■
Low profile: 10 mm x 30.2 mm x 49.5 mm
(0.39 in. x 1.19 in. x 1.95 in.)
Wide input voltage range: 18 Vdc to 36 Vdc and
36 Vdc to 75 Vdc
Input-to-output isolation: 1500 V
Operating case temperature range: –40 °C to
+110 °C
Overcurrent protection, unlimited duration
Remote on/off
Output voltage adjustment: 90% to 110% of V
O, nom
Output overvoltage protection
Undervoltage lockout
No-slide mechanical retaining pins
UL*
60950 Recognized,
CSA
†
C22.2 No. 60950-00
Certified, VDE 0805 (EN60950) Licensed
CE mark meets 73/23/EEC and 93/68/EEC
directives
§
(SMW only)
Within FCC and VDE Class A radiated limits
■
■
■
■
■
■
■
The SMC/SMW-Series Surface-Mount Power Modules use
advanced, surface-mount technology and deliver high-quality,
compact, dc-dc conversion at an economical price.
■
■
■
Options
■
■
■
■
■
Negative remote on-off logic
Synchronization
Tight output voltage regulation
Input voltage turn-on adjustment
■
Applications
■
■
■
Telecommunications
Electronic data processing
Distributed power architectures
Description
The SMC/SMW-Series Surface-Mount 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 a precisely regulated output. The out-
put is isolated from the input, allowing versatile polarity configurations and grounding connections. The mod-
ules have a maximum power rating of 10 W to 15 W and efficiencies up to 82%. Built-in filtering for both input
and output minimizes the need for external filtering.
These modules are designed and manufactured to be gull-winged surface-mounted power modules that are
reflowed with other surface-mount components in a typical surface-mount fashion.
*
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.)
SMC/SMW-Series Surface-Mount Power Modules:
18 Vdc to 36 Vdc and 36 Vdc to 75 Vdc Inputs, 10 W and 15 W
Data Sheet
October 23, 2003
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.)
Storage Temperature
I/O Isolation Voltage
Device
SMC
SMW
SMW
SMx015
SMx010
All
All
Symbol
V
I
V
I
V
I, trans
T
C
T
C
T
stg
—
Min
0
0
0
–40
–40
–55
—
Typ
—
—
—
—
—
—
—
Max
50
80
100
110*
105*
120
1500
Unit
Vdc
Vdc
V
°C
°C
°C
Vdc
* Maximum case temperature varies based on power dissipation. See derating curves, Figures 8—10, 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
)
Inrush Transient
Input Reflected-ripple Current
(5 Hz to 20 MHz; 12 µH source imped-
ance; T
A
= 25 °C; see Figure 1.)
Input Ripple Rejection (100 Hz—120 Hz)
Device
SMC
SMW
SMC
SMW
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
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 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 Power Systems
Data Sheet
October 23, 2003
SMC/SMW-Series Surface-Mount Power Modules:
18 Vdc to 36 Vdc and 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
A
B
C
D
F
A
B
C
D
F
A, D, F
B, C
A, D, F
B, C
A, D, F
B, C
Symbol
V
O, set
V
O, set
V
O, set
V
O, set
V
O, set
V
O
V
O
V
O
V
O
V
O
—
—
—
—
—
—
Min
4.85
11.52
14.40
1.92
3.17
4.80
11.40
14.25
1.90
3.13
—
—
—
—
—
—
Typ
5.0
12.0
15.0
2.0
3.3
—
—
—
—
—
—
0.01
—
0.1
25
0.5
Max
5.20
12.48
15.60
2.08
3.43
5.25
12.60
15.75
2.10
3.47
5
0.1
15
0.2
100
2.0
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mV
%V
O
mV
%V
O
mV
%V
O
Output Voltage
(Over all line, load, and temperature conditions
until end of life; see Figure 3.)
Output Regulation:
Line (V
I
= V
I, min
to V
I, max
)
Load (I
O
= I
O, min
to I
O, max
)
Temperature (T
C
= –40 °C to +85 °C)
Output Ripple and Noise Voltage
(Across two 0.47 µF ceramic capacitors; see
Figure 2.):
RMS
Peak-to-peak (5 Hz to 20 MHz)
External Load Capacitance
Output Current
(At I
O
< I
O, min
, the modules may exceed output
ripple specifications, but operation is guaran-
teed.)
Note:
For the SMx015D, the output voltage
may exceed regulation when
I
O
< I
O, min
.
Output Current-limit Inception
(V
O
= 90% V
O, set
)
A, D, F
B, C
A, D, F
B, C
A, D, F
B, C
SMx015A
SMx015B
SMx015C
SMx015D
SMx015F
SMx010A
SMx010B
SMx010C
SMx010F
SMx015A
SMx015B
SMx015C
SMx015D
SMx015F
SMx010A
SMx010B
SMx010C
SMx010F
—
—
—
—
—
—
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
—
—
—
—
—
—
0.3
0.12
0.10
0.35
0.4
0.1
0.08
0.06
0.15
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
30
35
100
120
1000
200
3.0
1.25
1.0
3.0
3.0
2.0
0.83
0.67
2.0
5
3.1
2.5
7.5
6.5
4
2.5
2
5
mVrms
mVrms
mVp-p
mVp-p
µF
µF
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Tyco Electronics Power Systems
3
SMC/SMW-Series Surface-Mount Power Modules:
18 Vdc to 36 Vdc and 36 Vdc to 75 Vdc Inputs, 10 W and 15 W
Data Sheet
October 23, 2003
Electrical Specifications
(continued)
Table 2. Output Specifications
(continued)
Parameter
Output Short-circuit Current
(V
O
= 0.25 V)
Device Code
or Suffix
SMx015A, D, F
SMx015B
SMx015C
SMx010A
SMx010B
SMx010C
SMx010F
SMC015A
SMC015B, C
SMC015D
SMC015F
SMC010A, B, C
SMC010F
SMW015A
SMW015B, C
SMW015D
SMW015F
SMW010A, B, C
SMW010F
All
Symbol
I
O
I
O
I
O
I
O
I
O
I
O
I
O
η
η
η
η
η
η
η
η
η
η
η
η
—
Min
—
—
—
—
—
—
—
77
73
64
74
75
71
79
75
66
76
77
73
—
Typ
—
—
—
—
—
—
—
80
76
67
77
79
75
82
78
69
79
81
77
265
Max
10
4.5
4.5
6
3.5
3.5
7.5
—
—
—
—
—
—
—
—
—
—
—
—
—
Unit
A
A
A
A
A
A
A
%
%
%
%
%
%
%
%
%
%
%
%
kHz
Efficiency
(V
I
= V
I, nom
; I
O
= I
O, max
; T
A
= 25 °C.)
Switching Frequency
Dynamic Response
(∆I
O
/∆t = 1A/10 µs; V
I
= V
I, nom
; T
A
= 25 °C):
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
All
All
—
—
—
—
—
—
—
—
2
0.8
2
0.8
—
—
—
—
%V
O, set
ms
%V
O, set
ms
Table 3. Isolation Specifications
Parameter
Isolation Capacitance
Isolation Resistance
Device
All
All
Min
—
10
Typ
2300
—
Max
—
—
Unit
pF
MΩ
Table 4. General Specifications
Parameter
Calculated MTBF
(I
O
= 80% of I
O, max
; T
C
= 40 °C)
Weight
Device
SMx015
SMx010
All
Min
Typ
5,200,000
7,500,000
—
Max
Unit
hours
hours
g (oz.)
—
28 (1.0)
4
Tyco Electronics Power Systems
Data Sheet
October 23, 2003
SMC/SMW-Series Surface-Mount Power Modules:
18 Vdc to 36 Vdc and 36 Vdc to 75 Vdc Inputs, 10 W and 15 W
Electrical Specifications
(continued)
Table 5. Feature Specifications
Parameter
Remote On/Off Signal Interface
(V
I
= 0 V to V
I, max
; open collector or
equivalent compatible; signal referenced to
V
I
(–) terminal. See Figure 4 and Feature
Descriptions.):
Positive Logic—If Device Code Suffix “1” is
not specified:
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 (I
on/off
= 0)
Open Collector Switch Specifications:
Leakage Current During Logic High
(V
on/off
= 10 V)
Output Low Voltage During Logic Low
(I
on/off
= 1 mA)
Turn-on Delay and Rise Times
(at 80% of I
O, max
; T
A
= 25 °C):
Case 1: On/Off Input Is Set for Unit On and
then Input Power Is Applied (delay from
point at which V
I
= V
I, min
until V
O
= 10% of
V
O, 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
V
O
= 10% of V
O, nom
).
Output Voltage Rise Time (time for V
O
to rise
from 10% of V
O, nom
to 90% of V
O, nom
)
Output Voltage Overshoot (at 80% of I
O, max
;
T
A
= 25 °C)
Output Voltage Set Point Adjustment Range
Device Code
or Suffix
Symbol
Min
Typ
Max
Unit
All
All
All
All
All
I
on/off
V
on/off
V
on/off
I
on/off
V
on/off
—
–0.7
—
—
—
—
—
—
—
—
1.0
1.2
10
50
1.2
mA
V
V
µA
V
All
T
delay
—
5
20
ms
All
T
delay
—
1
10
ms
All
All
A, B, F
C*
D
A
B
C
D
F
SMC
SMW
T
rise
—
—
—
—
V
O, clamp
V
O, clamp
V
O, clamp
V
O, clamp
V
O, clamp
V
uvlo
V
uvlo
—
—
90
90
90
5.5
13.2
16.5
2.5
3.6
11
20
0.2
—
—
—
—
—
—
—
—
—
14
27
5
5
110
100
125
7.2
17.0
22.0
4.0
6.0
—
—
ms
%
%V
O, nom
%V
O, nom
%V
O, nom
V
V
V
V
V
V
V
Output Overvoltage Protection (clamp)
Undervoltage Lockout
* The SMxxxxC module will only trim down.
Tyco Electronics Power Systems
5
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