tyco
2 Tyco Electronics
Data Sheet
September 2000
18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
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.
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:
Continuous
Transient (
≤
1 second) V
I
V
I, trans
—
—36
47 Vdc
V
I/O Isolation Voltage — — 500 Vdc
Operating Ambient Temperature
(At 60 ft./min. natural convection;
see Thermal Considerations section.)
T
A
–40 85
°
C
Storage Temperature T
stg
–40 100
°
C
Parameter Symbol Min Typ Max Unit
Operating Input Voltage V
I
18 28 36 Vdc
Maximum Input Current
(V
I
= 0 V to 60 V; I
O
= I
O, max
; see Figure 1.) I
I, max
— — 1.2 A
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
µ
H source impedance,
T
A
= 25
°
C; see Figure 24 and Design
Considerations section.)
I
I
— 40 — mAp-p
Input Ripple Rejection (120 Hz) — — 47 — dB
Input Inductance
(see Design Considerations section.) ———12
µ
H
Tyco Electronics
Tyco Electronics 3
Data Sheet
September 2000 18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Electrical Specifications
(continued)
Table 2. Output Specifications
Parameter Device or De vice
Suffix Symbol Min Typ Max Unit
Output Voltage Set Point
(V
I
= 28 V ; I
O
= I
O , max
; T
A
= 25
°
C) MC005A
MC005B
MC005C
MC005AJ
MC005BK
MC005CL
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
4.85
11.52
14.4
4.85
–4.85
11.4
–11.4
14.25
–14.25
5.0
12.0
15.0
5.0
–5.0
12.0
–12.0
15.0
–15.0
5.20
12.48
15.6
5.15
–5.15
12.6
–12.6
15.75
–15.75
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Voltage
(Over all operating input voltage,
resistive load, and temperature
conditions until end of life. See
Figures 3—8 f or cross regulation
on dual outputs.)
MC005A
MC005B
MC005C
MC005AJ
MC005BK
MC005CL
V
O
V
O
V
O
V
O1
V
O2
V
O1
V
O2
V
O1
V
O2
4.80
11.4
14.25
4.60
–4.60
10.8
–10.8
13.5
–13.5
—
—
—
—
—
—
—
—
—
5.25
12.6
15.75
5.40
–5.40
13.2
–13.2
16.5
–16.5
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Regulation:
Line (V
I
= 18 V to 36 V)
Load (I
O
= I
O, min
to I
O, max
)
Temperature (T
A
= –40
°
C to
+100
°
C; see Figure 2.)
MC005A, B, C
MC005A, B, C
MC005A
MC005B
MC005C
—
—
—
—
—
—
—
—
—
—
0.01
0.05
15
40
45
0.05
0.15
70
150
190
%V
O
%V
O
mV
mV
mV
Output Ripple and Noise Voltage
(See Figures 25, 26 and Design
Considerations section.):
RMS
Peak-to-peak (5 Hz to 20 MHz)
MC005A
MC005B, C
MC005AJ
MC005BK, CL
MC005A
MC005B, C
MC005AJ
MC005BK, CL
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
15
25
120
80
100
100
500
250
mVrms
mVrms
mVrms
mVrms
mVp-p
mVp-p
mVp-p
mVp-p
Output Current
(At I
O
< I
O, min
, the modules may
exceed output ripple
specifications and dual-output
modules may exceed specified
output voltages.)
MC005A
MC005B
MC005C
MC005AJ
MC005BK
MC005CL
I
O
I
O
I
O
I
O1
I
O2
I
O1
I
O2
I
O1
I
O2
0.1
0.02
0.02
0.1
0.1
0.02
0.02
0.017
0.017
—
—
—
—
—
—
—
—
—
1.0
0.42
0.33
0.5
0.5
0.21
0.21
0.17
0.17
A
A
A
A
A
A
A
A
A
4
4 Tyco Electronics
Data Sheet
September 2000
18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Electrical Specifications
(continued)
Table 2. Output Specifications
(continued)
Parameter Device or Device
Suffix Symbol Min Typ Max Unit
Output Current-limit Inception
(See Figures 9—15.):
V
O
= 4.5 V
V
O
= 10.8 V
V
O
= 13.5 V
V
O1
or VO2 = 4.5 V
VO1 or VO2 = 10.2 V
VO1 or VO2 = 12.75 V
MC005A
MC005B
MC005C
MC005AJ
MC005BK
MC005CL
IO
IO
IO
IO
IO
IO
—
—
—
—
—
—
1.6
0.8
0.7
1.6
0.8
0.7
2.5
1.4
1.3
2.5
1.4
1.3
A
A
A
A
A
A
Output Current Limit
(See Figures 9—15.):
VO = 1.0 V
VO = 1.0 V
VO1 or VO2 = 1.0 V
VO1 or VO2 = 1.0 V
MC005A
MC005B, C
MC005AJ
MC005BK, CL
—
—
—
—
—
—
—
—
—
—
—
—
3.0
2.0
3.0
2.0
A
A
A
A
Output Short-circuit Current
(VO = 250 mV; see Figures
9—15.)
MC005A, AJ
MC005B, C, BK, CL —
——
—1.5
1.0 —
—A
A
Efficiency
(VI = 28 V; IO = IO, max; T A = 25 °C;
see Figures 16, 17, 27, and 28.)
MC005A, BK, CL
MC005AJ
MC005B, C
η
η
η
76
75
78
79
78
81
—
—
—
%
%
%
Dynamic Response
(For MC005AJ, BK, CL applies to
VO1 while VO2 at full load; ∆IO/∆t =
1 A/10 µs, VI = 28 V, TA = 25 °C):
Load Change from IO = 50% to
25% of IO, max (see Figures
18—20):
Peak Deviation
Settling Time
(VO < 10% peak deviation)
Load Change from IO = 50% to
75% of IO, max (see Figures
21—23):
Peak Deviation
Settling Time
(VO < 10% peak deviation)
MC005A
MC005B, C
MC005AJ
MC005BK, CL
MC005A, B, C
MC005AJ
MC005BK, CL
MC005A
MC005B
MC005C
MC005AJ
MC005BK, CL
MC005A, B, C
MC005AJ
MC005BK, CL
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
80
70
80
60
3.5
5.0
3.0
80
70
60
80
70
3.5
5.0
3.0
mV
mV
mV
mV
ms
ms
ms
mV
mV
mV
mV
mV
ms
ms
ms
Tyco Electronics 5
Data Sheet
September 2000 18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
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 sections for further information.
Parameter Min Typ Max Unit
Isolation Capacitance — 1200 — pF
Isolation Resistance 10 — — MΩ
Parameter Device or De vice
Suffix Min Typ Max Unit
Calculated MTBF
(IO = 80% of IO, max; TC = 40 °C) MC005A, B, C
MC005AJ, BK, CL 4,000,000
3,500,000 hours
hours
Weight All — — 28 (1.0) g (oz.)
Parameter Device Symbol Min Typ Max Unit
Output Overvoltage Protection (clamp) MC005A
MC005B
MC005C
MC005AJ
MC005BK
MC005CL
VO, clamp
VO, clamp
VO, clamp
VO1, clamp
VO2, clamp
VO1, clamp
VO2, clamp
VO1, clamp
VO2, clamp
—
—
—
—
—
—
—
—
—
6
14
17
6
–6
16
–16
19
–19
7
16
19
7
–7
18
–18
21
–21
V
V
V
V
V
V
V
V
V
66 Tyco Electronics
Data Sheet
September 2000
18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Characteristic Curves
8-938(C)
Figure 1. MC005-Series Typical Input
Characteristics at Full Load and 25 °C
8-939(C)
Figure 2. MC005-Series Typical Output Voltage
Variation over Ambient Temperature
Range at VI = 28 V and Full Load
8-2976(C)
Figure 3. MC005BK Typical VO1 and VO2 vs. IO1
Regulation with VI = 28 V and TA = 25 °C
8-941(C)
Figure 4. MC005AJ Typical VO1 and VO2 vs. IO1
Regulation with VI = 28 V and TA = 25 °C
0 4 8 1216202428 40
0
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
INPUT VOLTAGE, V
I
(V)
0.3
0.2
32 36
0.1
V
O, nom
V
O, nom
I
I
(A)
I
I (
A)
NORMALIZED OUTPUT VOLTAGE AND INPUT
CURRENT, I
I
(A)
V
O, set
= V
O, set, min
–40 80
0.994
0.995
0.996
1.000
1.001
1.003
1.002
AMBIENT TEMPERATURE, TA (°C)
NORMALIZED OUTPUT VOLTAGE SET POINT
0.999
0.998
0.997
–30 –20 –10 0 10 20 30 40 50 60 70
VO, set = VO, set, nom
VO, set = VO, set, max
12.3
12.1
11.8
0.04 0.06 0.14 0.16 0.18 0.20
11.6
OUTPUT CURRENT, IO1 (A)
11.9
12.0
11.7
12.4
0.220.02 0.10 0.120.08
12.2 VO1, IO2 = 0.21 A
VO1, IO2 = 0.09 A
VO2, IO2 = 0.09 A
VO2, IO2 = 0.21 A
OUTPUT VOLTAGE, VO1, –VO2 (V)
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.50
4.85
4.90
4.95
5.00
5.05
5.10
5.15
5.20
OUTPUT CURRENT, I
O1
(A)
OUTPUT VOLTAGE, V
O1
, –V
O2
(V)
0.45
V
O1,
I
O2
= 0.25 A
V
O1,
I
O2
= 0.5 A
V
O1,
I
O2
= 0.05 A
V
O2,
I
O2
= 0.25 A
V
O2,
I
O2
= 0.05 A
V
O2,
I
O2
= 0.5 A
Tyco Electronics 7
Data Sheet
September 2000 18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Characteristic Curves (continued)
8-942(C)
Figure 5. MC005AJ Typical VO1 and VO2 vs. IO2
Regulation with VI = 28 V and TA = 25 °C
8-943(C)
Figure 6. MC005BK Typical VO1 and VO2 vs. IO2
Regulation with VI = 28 V and TA = 25 °C
8-944(C)
Figure 7. MC005CL Typical VO1 and VO2 vs. IO1
Regulation with VI = 28 V and TA = 25 °C
8-945(C)
Figure 8. MC005CL Typical VO1 and VO2 vs. IO2
Regulation with VI = 28 V and TA = 25 °C
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.50
4.85
4.90
4.95
5.00
5.05
5.10
5.15
5.20
OUTPUT CURRENT, I
O2
(A)
OUTPUT VOLTAGE, V
O1
, –V
O2
(V)
0.45
V
O2,
I
O1
= 0.05 A
V
O2,
I
O1
= 0.25 A
V
O2,
I
O1
= 0.5 A
V
O1,
I
O1
= 0.5 A
V
O1,
I
O1
= 0.25 A
V
O1,
I
O1
= 0.05 A
0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.22
11.6
11.7
11.8
11.9
12.0
12.1
12.2
12.3
12.4
OUTPUT CURRENT, I
O2
(A)
OUTPUT VOLTAGE, V
O1
, –V
O2
(V)
0.18 0.20
V
O1,
I
O1
= 0.21 A
V
O1,
I
O1
= 0.11 A
V
O2,
I
O1
= 0.11 A
V
O2,
I
O1
= 0.21 A
0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18
14.70
14.80
14.90
14.95
15.00
15.05
15.10
15.15
OUTPUT CURRENT, I
O1
(A)
OUTPUT VOLTAGE, V
O1
, –V
O2
(V)
V
O1,
I
O2
= 0.07 A
V
O1,
I
O2
= 0.17 A
14.85
14.75 V
O2,
I
O2
= 0.07 A
V
O2,
I
O2
= 0.17 A
0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18
14.70
14.80
14.90
14.95
15.00
15.05
15.10
15.15
OUTPUT CURRENT, I
O2
(A)
OUTPUT VOLTAGE, V
O1
, –V
O2
(V)
V
O2,
I
O1
= 0.09 A
V
O2,
I
O1
= 0.17 A
14.85
14.75 V
O1,
I
O1
= 0.09 A
V
O1,
I
O1
= 0.17 A
88 Tyco Electronics
Data Sheet
September 2000
18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Characteristic Curves (continued)
8-946(C)
Figure 9. MC005A, B, C Typical Normalized Output
Characteristics to Full Load at TA = 25 °C
8-947(C)
Figure 10. MC005AJ Typical Output
Characteristics (VO1 vs. lO1) with
VI = 28 V and TA = 25 °C
8-948(C)
Figure 11. MC005AJ Typical Output
Characteristics (–VO2 vs. lO2) with
VI = 28 V and TA = 25 °C
8-949(C)
Figure 12. MC005BK T ypical Output Characteristics
(VO1 vs. lO1) with VI = 28 V and TA = 25 °C
0 0.5 1.0 1.5 2.0 2.5 3.0
0.0
0.7
0.8
0.9
1.0
1.1
NORMALIZED OUTPUT CURRENT, I
O, norm
(A)
NORMALIZED OUTPUT VOLTAGE, V
O, norm
(V)
3.5
0.1
0.6
0.5
0.4
0.3
0.2
MC005A
MC005B
MC005C
0 0.2 0.4 0.6 0.8 1.0 1.2
0
2
3
4
5
6
OUTPUT CURRENT, I
O1
(A)
OUTPUT VOLTAGE, V
O1
(V)
2.0
1
1.4 1.6 1.8
I
O2
= 0.5 A
I
O2
= 0.05 A
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 2.0
0
1
2
3
4
5
6
OUTPUT CURRENT, I
O2
(A)
OUTPUT VOLTAGE, –V
O2
(V)
1.6 1.8
I
O1
= 0.5 A
I
O1
= 0.05 A
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 1.0
0
2
4
6
8
10
12
14
OUTPUT CURRENT, I
O1
(A)
OUTPUT VOLTAGE, V
O1
(V)
0.8 0.9
I
O2
= 0.21 A
I
O2
= 0.09 A
Tyco Electronics 9
Data Sheet
September 2000 18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Characteristic Curves (continued)
8-950(C)
Figure 13. MC005BK T ypical Output Characteristics
(–VO2 vs. lO2) with VI = 28 V and TA = 25 °C
8-951(C)
Figure 14. MC005CL Typical Output
Characteristics (VO1 vs. lO1) with
VI = 28 V and TA = 25 °C
8-952(C)
Figure 15. MC005CL Typical Output
Characteristics (–VO2 vs. lO2) with
VI = 28 V and TA = 25 °C
8-953(C)
Figure 16. MC005A, B, C Typical Efficiency vs.
Output Power at VI = 28 V and TA = 25 °C
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
0
6
8
10
12
14
OUTPUT CURRENT, I
O2
(A)
OUTPUT VOLTAGE, –V
O2
(V)
0.8 1.0
2
0.9
4
I
O1
= 0.21 A
I
O1
= 0.11 A
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 1.1
0
4
8
10
12
14
16
OUTPUT CURRENT, I
O1
(A)
OUTPUT VOLTAGE, V
O1
(V)
0.8 1.0
2
0.9
6
I
O2
= 0.17 A
I
O2
= 0.07 A
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 1.1
0
4
8
10
12
14
16
OUTPUT CURRENT, I
O2
(A)
OUTPUT VOLTAGE, –V
O2
(V)
0.8 1.0
2
0.9
6
I
O1
= 0.17 A
I
O1
= 0.09 A
2.0 2.5 3.0 3.5 4.0 4.5 5.0
70
72
74
76
78
80
82
OUTPUT POWER, P
O
(W)
EFFICIENCY, (%)
MC005A
MC005B
MC005C
1010 Tyco Electronics
Data Sheet
September 2000
18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Characteristic Curves (continued)
8-954(C)
Figure 17. MC005AJ, BK, CL Typical Efficiency vs.
Output Power at VI = 28 V and TA = 25 °C
8-2921(C)
Figure 18. MC005A Typical Output Voltage
Waveform for a Step Load Change from
50% to 25% of IO, max with VI = 28 V and
TA = 25 °C
8-2923(C)
Figure 19. MC005B Typical Output Voltage
Waveform for a Step Load Change from
50% to 25% of IO, max with VI = 28 V and
TA = 25 °C
8-2922(C)
Figure 20. MC005C Typical Output Voltage
Waveform for a Step Load Change from
50% to 25% of IO, max with VI = 28 V and
TA = 25 °C
2.0 2.5 3.0 3.5 4.0 4.5 5.0
68
71
72
76
77
79
78
TOTAL OUTPUT POWER, P
O
(W)
EFFICIENCY, (%)
75
74
73
70
69
MC005BK
MC005AJ
MC005CL
TIME, t (1 ms/div)
OUTPUT CURRENT, IO (A)
(0.5 A/div)
5.10 V
0.50 A
0.00 A
5.05 V
5.00 V
0.25 A
OUTPUT VOLTAGE, VO (V)
(50 mV/div)
IO
t=1 A
10 µs
TIME, t (500 µs/div)
OUTPUT VOLTAGE, V
O
(V)
(50 mV/div)
I
O
t=1 A
10 µs
OUTPUT CURRENT, I
O
(A)
(0.1 A/div)
12.10 V
0.00 A
12.05 V
12.00 V
0.20 A
0.10 A
TIME, t (500 µs/div)
OUTPUT VOLTAGE, V
O
(V)
(50 mV/div)
OUTPUT CURRENT, I
O
(A)
(0.1 A/div)
15.10 V
0.20 A
0.00 A
15.05 V
15.00 V
0.10 A
0.08 A
I
O
t=1 A
10 µs
Tyco Electronics 11
Data Sheet
September 2000 18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Characteristic Curves (continued)
8-2919(C)
Figure 21. MC005A Typical Output Voltage
Waveform for a Step Load Change from
50% to 75% of IO, max with VI = 28 V and
TA = 25 °C
8-2918(C)
Figure 22. MC005B Typical Output Voltage
Waveform for a Step Load Change from
50% to 75% of IO, max with VI = 28 V and
TA = 25 °C
8-2920(C)
Figure 23. MC005C Typical Output Voltage
Waveform for a Step Load Change from
50% to 75% of IO, max with VI = 28 V and
TA = 25 °C
TIME, t (1 ms/div)
OUTPUT VOLTAGE, V
O
(V)
(50 mV/div)
OUTPUT CURRENT, I
O
(A)
(0.5 A/div)
5.00 V
0.75 A
0.00 A
4.95 V
4.90 V
0.50 A
I
O
t=1 A
10 µs
TIME, t (500 µs/div)
12.00 V
0.30 A
0.00 A
11.95 V
11.90 V
OUTPUT VOLTAGE, V
O
(V)
(50 mV/div)
OUTPUT CURRENT, I
O
(A)
(0.1 A/div)
0.20 A
0.10 A
I
O
t=1 A
10 µs
TIME, t (500 µs/div)
OUTPUT VOLTAGE, V
O
(V)
(50 mV/div)
OUTPUT CURRENT, I
O
(A)
(0.1 A/div)
15.00 V
0.20 A
0.00 A
14.95 V
14.90 V
0.25 A
0.10 A
I
O
t=1 A
10 µs
1212 Tyco Electronics
Data Sheet
September 2000
18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
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 24. Input Reflected-Ripple Test Setup
8-513(C)
Figure 25. MC005A, B, C Output Noise
Measurement Test Setup
8-808(C)
Figure 26. MC005AJ, BK, CL Output Noise
Measurement Test Setup
8-204(C)
Note: Take all measurements at the module terminals. When
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
Figure 27. MC005A, B, C Output Voltage and
Efficiency Measurement Test Setup
8-753(C)
Figure 28. MC005AJ, BK, CL Output Voltage and
Efficiency Measurement Test Setup
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
O
(+)
V
O
(–)
RESISTIVE
LOAD
SCOPE
0.1 µF
COPPER STRIP
V
O1
(+)
V
O2
(–)
SCOPE
0.1 µF
COPPER STRIP
0.1 µF
SCOPE
COM
R
LOAD1
R
LOAD2
V
I
(+)
V
I
(–)
V
O
(+)
V
O
(–)
I
I
I
O
SUPPLY
CONTACT RESISTANCE
CO
NTA
C
T AND
DISTRIBUTION LOSSES
LOAD
ηVO(+) VO(–)–[]IO
VI(+) VI(–)–[]II
-----------------------------------------------
100 %×=
V
I
(+)
I
I
I
O
SUPPLY
CONTACT
RESISTANCE
CONTACT AND
DISTRIBUTION LOSSES
LOAD
V
I
(–)
V
O1
V
O2
COM
LOAD
Tyco Electronics 13
Data Sheet
September 2000 18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Design Considerations
Input Source Impedance
The power module should be connected to a low ac-
impedance input source. Source impedances greater
than 12 µH can aff ect the stability of the pow er module.
When the source impedance exceeds 12 µH, mount a
33 µF electrolytic capacitor (ESR < 0.7 Ω at 100 kHz)
close to the module input pins. This is also recom-
mended to minimize reflected-ripple current as well as
conducted and radiated electromagnetic interference
(EMI).
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%.
Output V oltage Reversal
CAUTION: Applying a reverse voltage across the
module output forward biases an inter-
nal diode. Attempting to start the mod-
ule under this condition can damage
the module.
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).
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements.
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 cir-
cuitry, 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) condi-
tion, the unit is equipped with internal current-limiting
circuitry and can endure current limiting for an unlim-
ited 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 e xhibit either foldback or tai-
lout characteristics (output current decrease or
increase). The unit operates normally once the output
current is brought back into its specified range.
Thermal Considerations
Although the power module is designed for an 85 °C
maximum operating ambient temperature, the charac-
terization of the local thermal environment becomes
more critical as temperatures exceed 70 °C . The maxi-
mum operating ambient temperature for the module is
based on the maximum safe operating temperature of
the devices contained inside it. Variations in local tem-
perature and airflow, as well as the methods and loca-
tion of measurement for these parameters, can affect
the resulting internal temperature rises for a given
ambient temperature. For ambient temperatures
exceeding 70 °C, call technical support for application
assistance.
14 Tyco Electronics
Data Sheet
September 2000
18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Outline Diagrams
Dimensions are in millimeters and (inches).
Tolerances: x.x ± 0.5 mm (0.02 in.); x.xx ± 0.25 mm (0.010 in.).
Copper paths must not be routed beneath the power module standoffs.
Single-Output Module Dual-Output Module
T op View T op View
Side View Side View
Bottom View Bottom View
8-1016(C).b 8-1016(C).c
TUV Rheinland
R
50.8 (2.00) MAX
–
+
–
+
IN
MC005A
DC-DC Power Module
IN:DC 28V, 0.23A OUT:DC 5V, 1A
tyco
MADE IN USA
U.S. Patent 4903182
OUT
27.9
(1.10)
MAX
50.8 (2.00) MAX
27.9
(1.10)
MAX
MC005BK
DC-DC Power Module
IN:DC 28V, 0.22A OUT:DC 12V, 0.21A
tyco
MADE IN USA
U.S. Patent 4903182
–
+
IN
OUT:DC –12V, 0.21A
–12V
COM
+12V
TUV Rheinland
R
11.7 (0.46)
MAX
2.8 (0.11)
0.51 (0.020)
0.79 (0.031) DIA
ROUND PIN (TYP)
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)
5.08
(0.200)
11.4
(0.45)
15.2
(0.60) 20.32
(0.800)
7.62
(0.300)
5.08
(0.200)
15.2
(0.60)
2.54
(0.100)
20.32 (0.800)
11.4
(0.45)
12.70
(0.500)
7.62
(0.300)
Tyco Electronics 15
Data Sheet
September 2000 18 Vdc to 36 Vdc Inputs; 5 W
MC005-Series Power Modules; dc-dc Converters:
Recommended Hole Patterns
Component-side footprint.
Dimensions are in millimeters and (inches).
Ordering Information
Table 4. Device Codes
Optional features may be ordered using the device code suffixes shown below. The feature suffixes are listed
numerically in descending order. Please contact your Tyco Electronics Account Manager or Application Engi-
neer for pricing and availability of options.
Table 5. Device Options
Single-Output Module
8-1016(C).b
Dual-Output Module
8-1016(C).c
Input V oltage Output V oltage Output Power Device Code Comcode
18 V—36 V 5 Vdc 5 W MC005A 106290059
18 V—36 V 12 Vdc 5 W MC005B 106290067
18 V—36 V 15 Vdc 5 W MC005C 106290075
18 V—36 V 5 Vdc, –5 Vdc 5 W MC005AJ 107557589
18 V—36 V 12 Vdc , –12 Vdc 5 W MC005BK 106358955
18 V—36 V 15 Vdc , –15 Vdc 5 W MC005CL 106358963
Option Device Code Suffix
Long pins: 5.84 mm ± 0.51 mm
(0.230 in. ± 0.020 in.) –SLP
11.4
(0.45)
7.62
(0.300)
12.70
(0.500)
15.2
(0.60) 20.32
(0.800)
5.08
(0.200)
MODULE OUTLINE
MODULE OUTLINE
5.08
(0.200)
15.2
(0.60)
2.54
(0.100)
20.32 (0.800)
12.70
(0.500)
11.4
(0.45)
7.62
(0.300)
