Data Sheet
July 2000
MW005AJ, MW005AJ4 Power Modules:
36 Vdc to 72 Vdc Input; 5 W
The MW005AJ-Series Power Modules use advanced, surface-
mount technology and deliver high-quality, compact, dc-dc
conversion at an economical price.
Features
■
Small size: 50.8 mm x 27.9 mm x 11.7 mm
(2.00 in. x 1.10 in. x 0.46 in.)
■
Output current limiting; unlimited duration
■
Output overvoltage protection
■
Input-to-output isolation
■
Operating ambient temperature range:
–40 °C to + 85 °C
■
High reliability
■
UL
*
1950 Recognized,
CSA
†
C22.2 No. 950-95
Certified,
VDE
‡
0805 (EN60950, IEC950) Licensed
■
CE mark meets 73/23/EEC and 93/68/EEC
directives
§
■
Within FCC Class A Radiated Limits
Options
■
Metal case with ground pin
■
Tighter regulation for 5 V output voltage
■
Long pins: 5.84 mm ± 0.51 mm
(0.230 in. ± 0.020 in.)
Description
The MW005AJ and MW005AJ4 Power Modules are dc-dc converters that operate over an input voltage range
of 36 Vdc to 72 Vdc and provide precisely regulated dc outputs. The outputs are isolated from the input and the
modules hav e maxim um power r atings of 5 W at a typical full-load efficiency of 78% f or the MW005AJ and 76%
for MW005AJ4.
The modules are encapsulated in nonconductive cases that mount on PC boards. In a natural convection
environment, the modules are rated to operate at 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.
‡
VDE
is a trademark of Verband Deutscher Elektrotechniker e.V.
§This product is intended for integ r ation 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.)
Applications
■
Distributed power architectures
■
Communication equipment
■
Computer equipment
■
Private branch exchange (PBX)
2 Tyco Electronics Corp.
Data Sheet
July 2000
36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
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.
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Table 1. Input Specifications
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. Refer to the fuse manufacturer’s data for further
information.
Parameter Symbol Min Max Unit
Input Voltage V
I
— 75 Vdc
I/O Isolation Voltage — — 500 Vdc
Operating Ambient Temperature
(At 60 ft./min. natural convection) T
A
–40 85 °C
Storage Temperature T
stg
–40 100 °C
Parameter Symbol Min Typ Max Unit
Operating Input Voltage V
I
36 48 72 Vdc
Maximum Input Current
(V
I
= 0 V to 72 V; I
O
= I
O, max
; see Figure 1.) I
I, max
— — 600 mA
Inrush Transient i
2
t — 0.1 0.2 A
2
s
Input Reflected-ripple Current, Peak-to-peak
(5 Hz to 20 MHz, 12 µH source impedance;
T
A
= 25 °C; see Figure 11 and Design
Considerations section.)
I
I
— 20 — mAp-p
Input Ripple Rejection (120 Hz) — — 53 — dB
Tyco Electronics Corp. 3
Data Sheet
July 2000 36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
Electrical Specifications
(continued)
Table 2. Output Specifications
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set Point
(V
I
= 48 V; I
O1
, I
O2
= 50% I
O, max
;
T
A
= 25 °C)
MW005AJ
MW005AJ4
V
O1, set
V
O2, set
V
O1, set
V
O2, set
4.85
–4.85
4.90
–5.00
5.00
–5.00
5.00
–5.20
5.15
–5.15
5.10
–5.40
Vdc
Vdc
Vdc
Vdc
Output Voltage
(Over all operating input voltage,
resistive load, and temperature
conditions until end of life; see Figures
2—4 and 13.)
MW005AJ
MW005AJ4
V
O1
V
O2
V
O1
V
O2
4.70
–4.70
4.80
–4.70
—
—
—
—
5.30
–5.30
5.25
–5.80
Vdc
Vdc
Vdc
Vdc
Output Regulation:
Temperature (T
A
= –40 °C to
+85 °C; see Figure 5.)
All — — 25 — mV
Output Ripple and Noise Voltage
(See Figure 12.):
RMS
Peak-to-peak (5 Hz to 20 MHz;
see Output Ripple in the Design
Considerations section for lower
output noise.)
All
All —
——
—25
120 120
500 mVrms
mVp-p
Output Current
(At I
O
< I
O, min
, the modules may exceed
output ripple specifications.)
MW005AJ
MW005AJ4
I
O1
I
O2
I
O1
I
O2
0.1
0.1
0.1
0.05
—
—
—
—
0.5
0.5
0.8
0.2
A
A
A
A
Output Current-limit Inception
(V
O
= 90% of V
O, nom
; see Figures 6—9.) All I
O1, 2
— 1.6 2.5 A
Output Short-circuit Current
(V
O1, 2
= 250 mV; see Figures 6—9.) All I
O1, 2
— 1.8 2.8 A
Efficiency
(V
I
= 48 Vdc; I
O
= I
O, max
; T
A
= 25 °C;
see Figures 10 and 13.)
MW005AJ
MW005AJ4
η
η
75
74 78
77 —
—%
%
Dynamic Response
(Applies to V
O1
and V
O2
at full load;
∆
I
O
/
∆
t = 1 A/10 µs, V
I
= 48 V, T
A
= 25 °C):
Load Change from I
O
= 50% to 75% of
I
O, max
:
Peak Deviation
Settling Time
(V
O
< 10% peak deviation)
Load Change from I
O
= 50% to 25% of
I
O, max
:
Peak Deviation
Settling Time
(V
O
< 10% peak deviation)
All
All
All
All
—
—
—
—
—
—
—
—
80
5.0
80
5.0
—
—
—
—
mV
ms
mV
ms
44 Tyco Electronics Corp.
Data Sheet
July 2000
36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
Electrical Specifications
(continued)
Table 3. Isolation Specifications
General Specifications
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions and Design Considerations for further information.
Parameter Min Typ Max Unit
Isolation Capacitance — 1200 — pF
Isolation Resistance 10 — — M
Ω
Parameter Min Typ Max Unit
Calculated MTBF (I
O
= 80% of I
O, max
; T
C
= 40 °C) 1,900,000 hours
Weight — — 28 (1.0) g (oz.)
Parameter Device Symbol Min Typ Max Unit
Output Overvoltage Protection (clamp) MW005AJ
MW005AJ4
V
O1, clamp
V
O2, clamp
V
O1, clamp
V
O2, clamp
—
—
—
—
—
—
—
—
7.0
–7.0
7.0
–8.0
V
V
V
V
Tyco Electronics Corp. 5
Data Sheet
July 2000 36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
Characteristic Curves
8-909(C)
Figure 1. MW005AJ and MW005AJ4 Input Current
and Output Voltage vs. Input Voltage at
T
A
= 25 °C and Full Load
8-910(C)
Figure 2. MW005AJ Typical V
O1
vs. l
O1
Regulation,
V
I
= 48 V and T
A
= 25 °C
8-911(C)
Figure 3. MW005AJ Typical V
O2
vs. I
O2
Regulation,
V
I
= 48 V and TA = 25 °C
8-912(C)
Figure 4. MW005AJ4 Typical VO2 vs. IO2 Regulation,
VI = 48 V and TA = 25 °C
010203040 60
0.300
0.400
0.450
INPUT VOLTAGE, V
I
(V)
INPUT CURRENT, I
I
(A)
0
0.350
70
0.250
0.200
0.150
0.100
0.050
50
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
OUTPUT VOLTAGE, V
O
(V)
V
O
V
O
I
I
I
I
0.10 0.15 0.20 0.25 0.30 0.35 0.50
4.88
5.00
5.08
5.12
OUTPUT CURRENT, I
O1
(A)
4.96
4.92
5.04
0.40 0.45
OUTPUT VOLTAGE, V
O1
(V)
I
O2
= 0.50 A
I
O2
= 0.25 A
I
O2
= 0.10 A
0.10 0.15 0.20 0.25 0.30 0.35
5.00
5.08
5.12
OUTPUT CURRENT, I
O2
(A)
4.88
5.04
0.40 0.45 0.50
4.92
4.96
OUTPUT VOLTAGE, –V
O2
(V)
I
O1
= 0.50 A
I
O1
= 0.25 A
I
O1
= 0.10 A
0.050 0.075 0.100 0.125 0.150 0.175
5.2
5.4
5.5
OUTPUT CURRENT, I
O2
(A)
4.9
5.3
0.200
5.0
5.1
OUTPUT VOLTAGE, –V
O2
(V)
I
O1
= 0.8 A
I
O1
= 0.4 A I
O1
= 0.1 A
66 Tyco Electronics Corp.
Data Sheet
July 2000
36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
Characteristic Curves (continued)
8-913(C)
Figure 5. MW005AJ and MW005AJ4 Output Volta ge
Set Point vs. Ambient Temperature at
VI = 48 V and Full Load
8-916(C)
Figure 6. MW005AJ Typical VO1 vs. IO1 Output
Characteristics, VI = 48 V and TA = 25 °C
8-914(C)
Figure 7. MW005AJ Typical –VO2 vs. IO2 Output
Characteristics, VI = 48 V and TA = 25 °C
8-915(C)
Figure 8. MW005AJ4 Typical VO1 vs. IO1 Output
Characteristics, VI = 48 V and TA = 25 °C
V
O, set =
V
O, setmin
V
O, set =
V
O, setnom
V
O, set =
V
O, setmax
–40 –20 0 20 40 60
1.000
1.002
1.003
AMBIENT TEMPERATURE, T
A
(°C)
NORMALIZED OUTPUT VOLTAGE SET POINT
0.994
1.001
80
0.999
0.998
0.997
0.996
0.995
I
O2
= 0.50 A
I
O2
= 0.25 A
I
O2
= 0.10 A
0 0.2 0.4 0.6 0.8 1.8
3
5
6
OUTPUT CURRENT, I
O1
(A)
OUTPUT VOLTAGE, V
O1
(V)
0
4
2.0
1
2
1.0 1.2 1.4 1.6
I
O1
= 0.50 A
I
O1
= 0.25 A
I
O1
= 0.10 A
0 0.2 0.4 0.6 0.8 1.8
3
5
6
OUTPUT CURRENT, I
O2
(A)
OUTPUT VOLTAGE, –V
O2
(V)
0
4
2.0
1
2
1.0 1.2 1.4 1.6
I
O2
= 0.20 A
I
O2
= 0.10 A
I
O2
= 0.05 A
0 0.2 0.4 0.6 0.8 1.8
3
5
6
OUTPUT CURRENT, I
O1
(A)
OUTPUT VOLTAGE, V
O1
(V)
0
4
2.0
1
2
1.0 1.2 1.4 1.6
Tyco Electronics Corp. 7
Data Sheet
July 2000 36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
Characteristic Curves (continued)
8-918(C)
Figure 9. MW005AJ4 Typical –VO2 vs. IO2 Output
Characteristics, VI = 48 V and TA = 25 °C
8-917(C)
Figure 10. MW005AJ and MW005AJ4 Typical
Efficiency vs. Output Power, VI = 48 V
and TA = 25 °C
OUTPUT VOLTAGE, –V
O2
(V)
I
O2
= 0.8 A
I
O2
= 0.4 A
I
O2
= 0.1 A
0 0.2 0.4 0.6 0.8 1.8
3
5
6
OUTPUT CURRENT, I
O2
(V)
0
4
2.0
1
2
1.0 1.2 1.4 1.6
1.0 1.5 2.0 2.5 3.0 3.5
70
78
82
OUTPUT POWER, PO (W)
EFFICIENCY, (%)
62
74
5.0
66
4.0 4.5
MW005AJ4
MW005AJ
88 Tyco Electronics Corp.
Data Sheet
July 2000
36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
Test Configurations
8-489(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 11. Input Reflected-Ripple Test Setup
8-808(C)
Note: Use a 0.1 µF ceramic capacitor. Scope measurement should
be made by using a BNC socket. Position the load between
50 mm and 75 mm (2 in. and 3 in.) from the module.
Figure 12. Output Noise Measurement Test Setup
8-863(C).a
Note: Take all measurements at the module ter minals. When
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
Figure 13. Output Voltage and Efficiency
Measurement Test Setup
Design Considerations
Output Ripple
If lower output ripples are needed, external L-C filters
across the module output terminals are recommended.
A 3.9 µH, 50 mΩ inductor and a 47 µF capacitor with its
impedance less than 1.5 Ω at 100 kHz will reduce the
output ripple by at least 50%.
Input or Output Voltage Reversal
CAUTION: Applying a reverse voltage across the
module input or output can damage the
module.
TO OSCILLOSCOPE
12 µH
C
S
220 µF
IMPEDANCE < 0.1 Ω
@ 20 °C, 100 kHz
V
I
(+)
V
I
(–)
BATTERY
CURRENT
PROBE
L
TEST
V
O1
(+)
V
O2
(–)
SCOPE
0.1 µF
COPPER STRIP
0.1 µF
SCOPE
COM
R
LOAD1
R
LOAD2
V
I
(+)
I
I
I
O
SUPPLY
CONTACT
RESISTANCE
CONTACT AND
DISTRIBUTION LOSSES
LOAD
V
I
(–)
V
O1
V
O2
COM
LOAD
η
VOj +() Vcom–[]IOj
j1=
2
∑
VI+() VI–()–()+[]II
------------------------------------------------------100×=%
Tyco Electronics Corp. 9
Data Sheet
July 2000 36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
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
C22.2 No. 950-95, and
VDE
0805
(EN60950, IEC950).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75 Vdc), for the module's output to be considered
meeting the requirements of safety extra-low voltage
(SELV), all of the following must be true:
■The input source is to be provided with reinforced
insulation from any other hazardous voltages, includ-
ing the ac mains.
■One VI pin and one V O pin are to be grounded or both
the input and output pins are to be kept floating.
■The input pins of the module are not operator acces-
sible.
■Another SELV reliability test is conducted on the
whole system, as required by the saf ety agencies, on
the combination of supply source and the subject
module to verify that under a single fault, hazardous
voltages do not appear at the module's output.
Note: Do not ground either of the input pins of the
module without grounding one of the output
pins. This may allow a non-SELV voltage to
appear between the output pins and ground.
The power module has extra-low v oltage (ELV) outputs
when all inputs are ELV.
The input to these units is to be provided with a maxi-
mum 5 A normal-blow fuse in the ungrounded lead.
Feature Descriptions
Output Overvoltage Protection
The output overvoltage clamp consists of control
circuitry, which is independent of the primary regulation
loop, that monitors the voltage on the output terminals.
The control loop of the clamp has a higher voltage set
point than the primary loop (see Feature Specifications
table). This provides a redundant voltage-control that
reduces the risk of output overvoltage.
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal current-lim-
iting circuitry and can endure current limiting for an
unlimited duration. At the point of current-limit incep-
tion, the unit shifts from voltage control to current con-
trol. 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.
10 Tyco Electronics Corp.
Data Sheet
July 2000
36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
Outline Diagram
Dimensions are in millimeters and (inches).
Copper paths must not be routed beneath the power module standoffs.
Tolerances: x.x ± 0.5 mm (0.02 in.), x.xx ± 0.25 mm (0.010 in.)
T op View
Side View
Bottom View
8-356(C).e
TUV Rheinland
R
50.8 (2.00) MAX
27.9 (1.10)
MAX
–
+
MADE IN USA
IN
– 5V
MW005AJ
DC-DC Power Module
IN:DC 48V, 0.13A OUT:DC 5V, 0.5A
OUT:DC –5V, 0.5A
Lucent
COM
+ 5V
U.S. Patent 4903182
11.7 (0.46)
MAX
2.8 (0.11)
0.51 (0.020)
0.79 (0.031) DIA
ROUND PIN
(
TYP
)
12.70
(0.500)
11.4
(0.45)
5.08
(0.200)
15.2
(0.60) 20.32
(0.800)
7.62
(0.300)
2.54
(0.100)
Tyco Electronics Corp. 11
Data Sheet
July 2000 36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
Recommended Hole Pattern
Component-side footprint.
Dimensions are in millimeters and (inches).
8-356(C).e
Ordering Information
Please contact your Account Manager or Application Engineer for pricing and availability of options. Tighter regula-
tion for +5 V output voltage is optional and is designated by suffix “4” in the device code name.
Input
Voltage Output
Voltage Output
Power Device
Code Comcode
36 V to 72 V ±5.0 V 5 W MW005AJ 106778558
36 V to 72 V +5.0 V, –5.2 V 5 W MW005AJ4 107003329
MODULE OUTLINE
7.62
(0.300)
5.08
(0.200)
2.54
(0.100)
15.2
(
0.60
)
20.32
(
0.800
)
12.70
(0.500)
11.4
(0.45)
Data Sheet
July 2000
36 Vdc to 72 Vdc Input; 5 W
MW005AJ, MW005AJ4 Power Modules:
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.
July 2000
DS98-312EPS (Replaces DS93-133EPS) Printed on
Recycled Paper
