Rev A
MM Series
Single and Dual Output
2:1 Input Voltage Range
25~30 Watt DC/DC Converter
FEATURES
●
Soft Start
●
Output Trim
●
1500VDC Isolation
●
Six-Sided Shielding
●
Efficiency up to 89%
●
Single & Dual Outputs
●
Remote On/Off Control
●
MTBF > 1,000,000 Hours
●
Low Profile: 0.37” (9.3mm)
●
CSA60950-1 Safety Approval
●
2:1 Wide Input Voltage Range
●
Complies with EN55022 Class A
●
Short Circuit, Over Voltage, and Over Temperature Protected
DESCRIPTION
The MM series power modules are low-profile dc/dc converters that offer up to 30 watts of output power in a 2 x 1.6 x 0.37 inch package.
These converters operate over input voltage ranges of 9-18VDC, 18-36VDC, and 36-75VDC. This series also provides regulated single
and dual output voltages of 3.3, 5, 12, 15, ±12 and ±15VDC. Other features include remote on/off control, output trim function, six-sided
shielding, and efficiencies up to 89%. All models are over voltage, over temperature and short circuit protected. The EN55022 Class A
conducted noise compliance minimizes design time, cost, and eliminates the need for external filter components. These converters are
best suited for data communication equipment, mobile battery driven equipment, distributed power systems, telecommunications
equipment, mixed analog/digital subsystems, process/machine control equipment, computer peripheral systems, and industrial robot
systems.
SPECIFICATIONS:
MM Series
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
Min
Nom
Max
Unit
INPUT (V
in
)
12V nominal input models
9
12
18
VDC
Input Voltage Range
24V nominal input models
18
24
36
VDC
48V nominal input models
36
48
75
VDC
12V nominal input models
8.6
8.8
9
VDC
Start Voltage
24V nominal input models
17
17.5
18
VDC
48V nominal input models
34
35
36
VDC
12V nominal input models
8.1
8.3
8.5
VDC
Under Voltage Shutdown
24V nominal input models
16
16.5
17
VDC
48V nominal input models
32
33
34
VDC
Reverse Polarity Input Current
All models
2
A
Short Circuit Input Power
4500
mW
12V nominal input models
-0.7
25
VDC
Input Surge Voltage
24V nominal input models
-0.7
50
VDC
48V nominal input models
-0.7
100
VDC
Input Filter
Pi Filter
OUTPUT (V
o
)
Output Voltage Range
See Rating Chart
Output Voltage Accuracy
±0.5
±1.0
%
Output Voltage Balance
Dual Output, Balanced Loads
±0.5
±2.0
%
Output Trim
±10
%
Load Regulation
Io = 10% to 100%
±0.1
±0.5
%
Line Regulation
Vin = min. to max.
±0.1
±0.3
%
Output Power
30
W
Output Current Range
See Rating Chart
Ripple & Noise (20MHz)
55
80
mV
pk-pk
Ripple & Noise (20MHz)
Over Line, Over Load, and Over Temperature
100
mV
pk-pk
Ripple & Noise (20MHz)
10
mVrms
Transient Recovery Time
25% load step change
150
300
µs
Transient Response Deviation
±2
±4
%
REMOTE ON/OFF
Supply On
2.5 to 100VDC or Open Circuit
Supply Off
-1
1
VDC
Standby Input Current
2
5
mA
Control Input Current (On)
Vin – RC = 5.0V
5
µA
Control Input Current (Off)
Vin – RC = 0V
-100
µA
Control Common
Referenced to negative input
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Rev A
MM Series
Single and Dual Output
2:1 Input Voltage Range
25~30 Watt DC/DC Converter
Min
110
Nom
Max
Unit
%
SPECIFICATION
PROTECTION
Over Power Protection
Short Circuit Protection
Input Fuse Recommendation
GENERAL
Efficiency
Switching Frequency
Isolation Voltage Rated
Isolation Voltage Test
Isolation Resistance
Isolation Capacitance
Internal Power Dissipation
Max. Capacitive Load
ENVIRONMENTAL
Operating Temperature (Ambient)
Operating Temperature (Case)
Storage Temperature
Over Temperature Protection
Lead Temperature
Humidity
Cooling
RFI
Temperature Coefficient
MTBF
Conducted EMI
PHYSICAL
Weight
Dimensions (L x W x H)
Case Material
Flammability
Heatsink material
Heatsink finish
TEST CONDITIONS
12V nominal input models
24V nominal input models
48V nominal input models
290
1500
1650
1000
160
Continuous
6000mA slow-blow type
3000mA slow-blow type
1500mA slow-blow type
See Rating Chart
330
360
60 seconds
Flash Test for 1 second
500VDC
100KHz, 1V
1500
5,500
See Rating Chart
-40
-40
-50
107
1200
KHz
VDC
VDC
MΩ
pF
mW
Case Temperature, automatic
1.5mm from case for 10 seconds
MIL-HDBK-217F @ 25°C, Ground Benign
+50
°C
+105
°C
+125
°C
112
117
°C
260
°C
95
%
Free air convection
Six-sided shielding, metal case
±0.01
±0.02
%/°C
1000
Khours
EN55022 Class A
48 grams (heatsink 2g)
2.0 x 1.6 x 0.37 inches
50.8 x 40.6 x 9.3 mm
Metal with non-conductive baseplate
UL94V-0
Aluminum
Anodic treatment (black)
OUTPUT VOLTAGE / CURRENT RATING CHART
SINGLE OUTPUT MODELS
Model Number
MM12S3.3-5500
MM12S5-5000
MM12S12-2500
MM12S15-2000
MM24S3.3-5500
MM24S5-5000
MM24S12-2500
MM24S15-2000
MM48S3.3-5500
MM48S5-5000
MM48S12-2500
MM48S15-2000
Input Voltage
Output
Voltage
Output Current
Input Current
Reflected
Min
Max
No Load Max Load Ripple Current
400 mA 5500 mA
1867 mA
350 mA 5000 mA
2480 mA
40 mA
100 mA
166 mA 2500 mA
2841 mA
133 mA 2000 mA
2841 mA
300 mA 5500 mA
922 mA
300 mA 5000 mA
1225 mA
20 mA
50 mA
300 mA 2500 mA
1404 mA
125 mA 2000 mA
1404 mA
300 mA 5500 mA
461 mA
300 mA 5000 mA
613 mA
10 mA
25 mA
300 mA 2500 mA
702 mA
125 mA 2000 mA
702 mA
DUAL OUTPUT MODELS
Output Current
Input Current
Min
±83
±65
±83
±65
±83
±65
Max
±1250
±1000
±1250
±1000
±1250
±1000
40mA
40mA
20mA
20mA
10mA
10mA
2841 mA
2841 mA
1404 mA
1404 mA
702 mA
702 mA
Efficiency
(Typ)
81%
84%
88%
88%
82%
85%
89%
89%
82%
85%
89%
89%
Over Voltage
Maximum
Protection Capacitive Load
3.9 VDC
6.8 VDC
15 VDC
18 VDC
3.9 VDC
6.8 VDC
15 VDC
18 VDC
3.9 VDC
6.8 VDC
15 VDC
18 VDC
470 µF
470 µF
470 µF
470 µF
470 µF
470 µF
470 µF
470 µF
470 µF
470 µF
470 µF
470 µF
3.3 VDC
12 VDC
5 VDC
(9 ~ 18 VDC) 12 VDC
15 VDC
3.3 VDC
24 VDC
5 VDC
(18 ~ 36 VDC) 12 VDC
15 VDC
3.3 VDC
48 VDC
5 VDC
(36 ~ 75 VDC) 12 VDC
15 VDC
Model Number
MM12D12-1250
MM12D15-1000
MM24D12-1250
MM24D15-1000
MM48D12-1250
MM48D15-1000
# For each output
Input Voltage
12 VDC
(9 ~ 18 VDC)
Output
Voltage
Reflected
No Load Max Load Ripple Current
100mA
50mA
25mA
Efficiency
(Typ)
88%
88%
89%
89%
89%
89%
Over Voltage
Protection
±15 VDC
±18 VDC
±15 VDC
±18 VDC
±15 VDC
±18 VDC
±12 VDC
±15 VDC
±12 VDC
24 VDC
(18 ~ 36 VDC) ±15 VDC
±12 VDC
48 VDC
(36 ~ 75 VDC) ±15 VDC
Maximum
Capacitive
Load
220 µF
#
220 µF
#
220 µF
#
220 µF
#
220 µF
#
220 µF
#
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Rev A
MM Series
Single and Dual Output
2:1 Input Voltage Range
25~30 Watt DC/DC Converter
NOTES
1. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%.
2. The MM series requires a minimum output loading to maintain specified regulations. Operation under no-load
conditions will not damage these devices, however they may not meet all listed specifications.
3. All DC/DC converters should be externally fused at the front end for protection.
4. Other input and output voltages may be available, please contact factory.
5. Heat-sink is optional, please consult factory for ordering details.
BLOCK DIAGRAMS
Single Output
+Vin
LC
Filter
+Vo
Dual Output
+Vin
LC
Filter
+Vo
Com.
-Vo
OVP
OTP
PWM
Isolation
OVP
-Vin
Ref.Amp
Trim
On/Off
PWM
Isolation
Ref.Amp
Trim
OVP
OTP
OVP
-Vo
-Vin
On/Off
INPUT VOLTAGE TRANSIENT RATING
150
140
130
120
110
100
Vin ( VDC )
90
80
70
60
50
40
30
20
10
0
10uS
100uS
1mS
10mS
100mS
12VDC Input Models
24VDC Input Models
48VDC Input Models
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Rev A
MM Series
Single and Dual Output
2:1 Input Voltage Range
25~30 Watt DC/DC Converter
DERATING CURVES & EFFICIENCY GRAPHS
Efficiency vs Input Voltage (Single Output)
100
90
Efficiency (%)
Efficiency vs Input Voltage (Dual Output)
100
90
Efficiency (%)
80
70
60
50
80
70
60
50
Low
Nom
Input Voltage (V)
High
Low
Nom
Input Voltage (V)
High
Efficiency vs Output Load (Single Output)
100
90
Efficiency (%)
Efficiency vs Output Load (Dual Output)
100
90
Efficiency (%)
80
70
60
50
40
80
70
60
50
40
30
10
20
40
60
80
100
Load Current (%)
30
10
20
40
60
80
100
Load Current (%)
Derating Curve without Heatsink
100
80
Output Power (%)
Natural
convection
60
100LFM
200LFM
400LFM
Output Power (%)
100
Derating Curve with Heatsink
400LFM
80
Natural
convection
200LFM
100LFM
60
40
40
20
0
-40
20
0
~
¡ã
50
60
70
80
90
100
110
~
-40
50
60
70
80
90
100
110
Ambient Temperature (°C)
Ambient Temperature (°C)
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Rev A
MM Series
Single and Dual Output
2:1 Input Voltage Range
25~30 Watt DC/DC Converter
MECHANICAL DRAWINGS
Standard
Unit: mm [inches]
40.6 [1.60]
10.20 [0.402] 10.20 [0.402] 10.20 [0.402]
With Heatsink
5.0 [0.20]
6.0 [0.24]
9.3[0.37]
5
6
7
8
45.70 [1.801]
50.8 [2.00]
23.0[0.91]
Bottom
Side
16.3[0.64]Max
0.039]
55.32[2.18]Max
Heat-sink
Thermal pad
Clamp
Converter
1
2
4
5.10 [0.201]
7.6 [0.30]
2.5 [0.10]
1. Tolerance: X.X±0.25 [X.XX±0.01]
X.XX±0.13 [X.XXX±0.005]
2. Pin: ±0.05 [±0.002]
1.00[
PIN CONNECTIONS
PIN
1
2
4
5
6
7
8
SINGLE OUTPUT
+Vin
-Vin
Remote ON/OFF
No Pin
+Vout
-Vout
Trim
DUAL OUTPUT
+Vin
-Vin
Remote ON/OFF
+Vout
Common
-Vout
Trim
Advantages of adding a Heatsink:
1. To help heat dissipation and increase the stability and
reliability of the DC/DC converter at high operating
temperature
2. To upgrade the operating temperature of the DC/DC
converter. Please refer to the Derating Curve.
The MM Series converter is encapsulated in a low thermal resistance molding compound that has excellent
resistance/electrical characteristics over a wide temperature range or in high humidity environments.
The encapsulant and unit case are both rated to UL 94V-0 flammability specifications. Leads are tin plated for improved
solderability.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
