Data Sheet
October 1999
ME005-Series Power Modules:
39.5 Vdc to 60 Vdc Input; 5 W
Features
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Small size: 50.8 mm x 27.9 mm x 11.7 mm
(2.00 in. x 1.10 in. x 0.46 in.)
Operating ambient temperature range:
–40 °C to +85 °C
High reliability
Input-to-output isolation
No external filtering required
Load regulation: 0.15% max (ME005A, B, C, N)
Line regulation: 0.05% max (ME005A, B, C, N)
Overcurrent protection
Output overvoltage protection
PC board mountable
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The ME005-Series Power Modules use advanced, surface-
mount technology and deliver high-quality, compact,
dc-dc conversion at an economical price.
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Applications
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UL*
1950 Recognized,
CSA
†
C22.2 No. 950-95
Certified, VDE 0805 (EN60950, IEC950) and
TUV
‡
Licensed
Within FCC Class B requirements for radiated
emissions
Communication equipment
Computer equipment
Digital circuitry
Distributed power architectures
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Options
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Long pins: 5.8 mm (0.230 in.)
Description
The ME005-Series Power Modules are dc-dc converters that operate over an input voltage range of 39.5 Vdc to
60 Vdc and provide precisely regulated dc outputs. The outputs are fully isolated from the inputs, allowing ver-
satile polarity configurations and grounding connections. The modules have maximum power ratings of 5 W at
typical full-load efficiencies of 80% to 83% depending on the code.
The modules are encapsulated in nonconductive cases that mount on PC boards. In a natural convection envi-
ronment, the modules are rated to full load at 85 °C with no heat sinking or external filtering.
*
UL
is a registered trademark of Underwriters Laboratories, Inc.
†
CSA
is a registered trademark of Canadian Standards Association.
‡
TÜV
is a registered trademark of Technischer Überwachungs-Verein.
ME005-Series Power Modules:
39.5 Vdc to 60 Vdc Input; 5 W
Data Sheet
October 1999
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)
Operating Ambient Temperature
(natural convection)
Storage Temperature
I/O Isolation Voltage
Symbol
V
I
T
A
T
stg
—
Min
—
–40
–40
—
Max
60
85
100
500
Unit
Vdc
°C
°C
Vdc
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Table 1. Input Specifications
Parameter
Operating Input Voltage
Maximum Input Current
(V
I
= 0 V to 60 V; I
O
= I
O, max
;
see Figures 1—5.)
Inrush Transient
Input Reflected-ripple Current, Peak-to-peak
(5 Hz to 20 MHz, 12 µH source impedance,
T
A
= 25 °C; see Figure 31 and Design
Considerations section.)
Input Ripple Rejection (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 fuse with a maximum rating of 5 A in series with the input (see Safety Con-
siderations 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. However, for
UL
recognition, the dc rating of the
fuse must not exceed 5 A. Refer to the fuse manufacturer’s data for further information.
Symbol
V
I
I
I, max
Min
39.5
—
Typ
48
—
Max
60
600
Unit
Vdc
mA
i
2
t
I
I
—
—
0.3
30
1.0
—
A
2
s
mAp-p
—
—
53
—
dB
2
Tyco Electronics Corp.
Data Sheet
October 1999
ME005-Series Power Modules:
39.5 Vdc to 60 Vdc Input; 5 W
Electrical Specifications
(continued)
Table 2. Output Specifications
Parameter
Output Voltage Set Point
(V
I
= 48 V; I
O
= I
O, max
; T
A
= 25 °C)
Device
ME005A
ME005N
ME005B
ME005C
ME005BK
ME005CL
Output Voltage
(Over all operating input voltage,
resistive load, and temperature
conditions until end of life. See
Figure 33. See Figures 9—12 for
cross regulation on dual outputs.)
ME005A
ME005N
ME005B
ME005C
ME005BK
ME005CL
Output Regulation:
Line (V
I
= 39.5 Vdc to 60 Vdc)
Load (I
O
= I
O, min
to I
O, max
)
Temperature
(T
A
= –40 °C to +85 °C;
see Figures 6—8.)
Output Ripple and Noise Voltage
(With 0.1 µF ceramic bypass
capacitor on output; see Figure 32.):
RMS
Symbol
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
O
V
O
V
O
V
O
V
O1
V
O2
V
O1
V
O2
—
—
—
—
—
Min
4.85
5.10
11.52
14.4
11.4
–11.4
14.25
–14.25
4.80
5.05
11.4
14.25
10.08
–10.08
13.5
–13.5
—
—
—
—
—
Typ
5.0
5.20
12.0
15.0
12.0
–12.0
15.0
–15.0
—
—
—
—
—
—
—
—
0.01
0.05
15
40
45
Max
5.20
5.30
12.48
15.6
12.6
–12.6
15.75
–15.75
5.25
5.35
12.6
15.75
13.2
–13.2
16.5
–16.5
0.05
0.15
70
150
190
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
%V
O
%V
O
mV
mV
mV
ME005A, B, C, N
ME005A, B, C, N
ME005A, N
ME005B
ME005C
Peak-to-peak (5 Hz to 20 MHz)
ME005A, N
ME005B, C
ME005BK, CL
ME005A, N
ME005B, C
ME005BK, CL
ME005A
ME005N
ME005B
ME005C
ME005BK
ME005CL
—
—
—
—
—
—
I
O
I
O
I
O
I
O
I
O1
I
O2
I
O1
I
O2
—
—
—
—
—
—
0.02
0.02
0.005
0.005
0.02
0.02
0.017
0.017
—
—
—
—
—
—
—
—
—
—
—
—
—
—
15
25
80
50
100
250
1.0
0.96
0.42
0.33
0.21
0.21
0.17
0.17
mVrms
mVrms
mVrms
mVp-p
mVp-p
mVp-p
A
A
A
A
A
A
A
A
Output Current
(At I
O
< I
O, min
, the modules may
exceed output ripple specifications
and dual-output modules may
exceed specified output voltages. )
Output Current-limit Inception
(See Figures 13—19.):
V
O
= 4.5 V
V
O
= 4.68 V
V
O
= 10.8 V
V
O
= 13.5 V
V
O1
or V
O2
= 10.2 V
V
O1
or V
O2
= 12.75 V
ME005A
ME005N
ME005B
ME005C
ME005BK
ME005CL
I
O
I
O
I
O
I
O
I
O
I
O
—
—
—
—
—
—
1.6
1.6
0.8
0.7
0.8
0.7
2.5
2.5
1.4
1.3
1.4
1.3
A
A
A
A
A
A
Tyco Electronics Corp.
3
ME005-Series Power Modules:
39.5 Vdc to 60 Vdc Input; 5 W
Data Sheet
October 1999
Electrical Specifications
(continued)
Table 2. Output Specifications
(continued)
Parameter
Output Current Limit
(See Figures 13—19.):
V
O
= 1.0 V
V
O
= 1.0 V
V
O1
or V
O2
= 1.0 V
Output Short-circuit Current
(V
O
= 250 mV; see Figures 13—19.)
Efficiency
(V
I
= 48 V; I
O
= I
O, max
; T
A
= 25 °C;
see Figures 20—24, 33, and 34.)
Dynamic Response
(½I
O
/½t = 1 A/10 µs, V
I
= 48 V,
T
A
= 25 °C; for ME005BK and CL
applies to V
O1
and V
O2
at
I
O
= I
O, max
):
Load Change from I
O
= 50% to
75% of I
O, max
(See Figures
25—27.):
Peak Deviation
Device
Symbol
Min
Typ
Max
Unit
ME005A, N
ME005B, C
ME005BK, CL
ME005A, N
ME005B, C, BK, CL
ME005A, N
ME005B, C
ME005BK, CL
—
—
—
—
—
η
η
η
—
—
—
—
—
77
80
79
—
—
—
1.5
1.0
80
83
82
3.0
2.0
2.0
—
—
—
—
—
A
A
A
A
A
%
%
%
Settling Time
(V
O
< 10% peak deviation)
Load Change from I
O
= 50% to
25% of I
O, max
(See Figures
28—30.):
Peak Deviation
ME005A, N
ME005B, C
ME005BK, CL
ME005A, B, C, N
ME005BK, CL
—
—
—
—
—
—
—
—
—
—
80
70
50
3.5
5.0
—
—
—
—
—
mV
mV
mV
ms
ms
Settling Time
(V
O
< 10% of peak deviation)
ME005A, N
ME005B
ME005C
ME005BK, CL
ME005A, B, C, N
ME005BK, CL
—
—
—
—
—
—
—
—
—
—
—
—
80
70
60
50
3.5
5.0
—
—
—
—
—
—
mV
mV
mV
mV
ms
ms
4
Tyco Electronics Corp.
Data Sheet
October 1999
ME005-Series Power Modules:
39.5 Vdc to 60 Vdc Input; 5 W
Electrical Specifications
(continued)
Table 3. Isolation Specifications
Parameter
Isolation Capacitance
Isolation Resistance
Device
All
All
Min
—
10
Typ
1200
—
Max
—
—
Unit
pF
M¾
General Specifications
Parameter
Calculated MTBF (I
O
= 80% of I
O, max
; T
C
= 40 °C)
Weight
Device
All
All
—
Min
Typ
7,000,000
—
28 (1.0)
Max
Unit
hours
g (oz.)
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for further information.
Parameter
Output Overvoltage Protection (clamp)
Device
ME005A, N
ME005B
ME005C
ME005BK
ME005CL
Symbol
V
O, clamp
V
O, clamp
V
O, clamp
V
O1, clamp
V
O2, clamp
V
O1, clamp
V
O2, clamp
Min
—
—
—
—
—
—
—
Typ
6.0
14
17
16
–16
19
–19
Max
7.0
16
19
18
–18
21
–21
Unit
V
V
V
V
V
V
V
Tyco Electronics Corp.
5