Rev. C
CMCG Series
30 Watt Single Output
2:1 Input Voltage Range
Chassis Mount DC/DC Converter
FEATURES
● Soft Start
● Lead-Free
Design
●
Output Trim Function
●
I/O Isolation 1500VDC
● Remote On/Off Control (Optional)
● Call Factory for More Output Power Options
● EMI Complies with RN55022 Class A (Only for CMCG-A Series)
● Chassis Mount Options: Open Frame, U Channel, and Enclosed Types Available
SPECIFICATIONS:
CMCG Series
SPECIFICATION
INPUT (V
in
)
Input Voltage Range
Start Voltage
Under Voltage Shutdown
Over Voltage Shutdown
Input Surge Voltage (1000ms)
Reverse Polarity Input Current
Reflected Ripple Current
Short Circuit Input Power
OUTPUT (V
o
)
Output Voltage Range
Output Voltage Accuracy
Output Voltage Trim
Load Regulation (2.5V, 3.3V, and 5Vout)
Load Regulation (12V and 15Vout)
Line Regulation
Output Power
Output Current Range
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Transient Recovery Time
Transient Response Deviation
Maximum Capacitive Load
REMOTE ON/OFF CONTROL
Supply On
Supply Off
Device Standby Input Current
Control Input Current
Control Common
PROTECTION
Over Power Protection
Short Circuit Protection
Over Voltage Protection
GENERAL
Efficiency
Switching Frequency
Isolation
Voltage Rated
Isolation Voltage Test
Isolation Resistance
Isolation Capacitance
Internal Power Dissipation
ENVIRONMENTAL
Operating Temperature
Storage Temperature
Lead Temperature
Humidity
Temperature Coefficient
Cooling
RFI
MTBF
Conducted EMI
PHYSICAL
Weight
Dimensions
All specifications are based on 25
o
C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances
TEST CONDITIONS
Min
Nom
24V input models
48V input models
24V input models
48V input models
24V input models
48V input models
24V input models
48V input models
24V input models
48V input models
All
models
All models
18
36
17
34
16
32
40
80
-0.7
-0.7
24
48
17.5
35
16.5
33
42
82
Max
Unit
VDC
VDC
VDC
VDC
VDC
A
mW
%
%
%
%
%
W
mV
pk-pk
mV
pk-pk
mVrms
μs
%
36
75
18
36
17
34
44
84
50
100
2
See Table
4500
% of nominal output voltage
Io = No Load to 100% Load
Io = 10% to 100% Load
Vin = Min to Max
±9.0
Over Line, Load, and Temperature
25% Load Step Change
25% Load Step Change
200
See Table
±0.5
±1.0
±10.0
±11.0
±0.5
±1.0
±0.5
±1.0
±0.1
±0.3
30
See Table
75
100
120
10
500
±2
±5
See Table
-1
ON
OFF
2.5 to 100VDC or Open Circuit
1
VDC
2
5
mA
5
μA
-100
Referenced to Negative Input
160
Continuous
See table
See Table
350
400
%
110
60 seconds
Flash Tested for 1 second
500VDC
100KHz, 1V
Ambient
Case
1.5mm from case for 10 seconds
280
1500
1650
1000
1200
1500
5500
KHz
VDC
VDC
MΩ
pF
mW
-40
-40
-55
MIL-HDBK-217F @ 25°C, Ground Benign
+50
°C
+105
+125
°C
260
°C
95
%
±0.01
±0.02
%/°C
Free air convection
Six-sided shielded metal
case
600,000 Hours
EN55022 Class A
Approximately 7oz
4.00(L) x 2.25(W) x 0.81(H) inches
5/15/2019
Wall Industries, Inc. • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
website:
www.wallindustries.com
• e-mail:
sales@wallindustries.com
Page 1 of 6
Rev. C
CMCG Series
30 Watt Single Output
2:1 Input Voltage Range
Chassis Mount DC/DC Converter
OUTPUT VOLTAGE / CURRENT RATING CHART
Model Number
CMCG24S2.5-6000
CMCG24S3.3-6000
CMCG24S5-5000
CMCG24S5.1-5000
CMCG24S12-2500
CMCG24S15-2000
CMCG48S2.5-6000
CMCG48S3.3-6000
CMCG48S5-5000
CMCG48S5.1-5000
CMCG48S12-2500
CMCG48S15-2000
48 VDC
(36
–
75 VDC)
24 VDC
(18
–
36 VDC)
Input Voltage
Output
Voltage
2.5 VDC
3.3 VDC
5 VDC
5.1 VDC
12 VDC
15 VDC
2.5 VDC
3.3 VDC
5 VDC
5.1 VDC
12 VDC
15 VDC
Output Current
Min
0mA
0mA
0mA
0mA
166mA
133mA
0mA
0mA
0mA
0mA
166mA
133mA
Max
6000mA
6000mA
5000mA
5000mA
2500mA
2000mA
6000mA
6000mA
5000mA
5000mA
2500mA
2000mA
Reflected
Over Voltage Max Capacitive
Ripple Current Protection
Load
No Load Max Load
50mA
50mA
70mA
70mA
20mA
20mA
40mA
40mA
50mA
50mA
10mA
10mA
744mA
959mA
1185mA
1207mA
1420mA
1420mA
372mA
480mA
604mA
604mA
710mA
710mA
50mA (typ)
100mA (typ)
3 VDC
3.9 VDC
6.8 VDC
6.8 VDC
15 VDC
18 VDC
3 VDC
3.9 VDC
6.8 VDC
6.8 VDC
15 VDC
18 VDC
6800μF
6800μF
6800μF
6800μF
680μF
680μF
6800μF
6800μF
6800μF
6800μF
680μF
680μF
Input Current
Eff
(Typ)
84%
86%
88%
88%
88%
88%
84%
86%
88%
88%
88%
88%
NOTES
1. Transient
Recovery Time is measured to within 1% error band for a step change in output load of 75% to 100%.
2.
Ripple & Noise measurement bandwidth is 0~20MHz.
3.
These power converters require a minimum output loading to maintain specified regulation. Operation
at no-load
will not damage these
devices, however they may not meet all listed specifications.
4.
Other input and output voltages may be available, please contact factory.
5. To order the converter with Remote On/Off function, please add suffix ”-RC” (Ex: CMCG48S5-5000-RC).
6.
Chassis Mount Options: No suffix for open frame, “U” suffix for U Channel, and “E” suffix for Enclosed type.
Due to advances in technology, specifications subject to change without notice.
BLOCK DIAGRAM
INPUT VOLTAGE TRANSIENT RATING
5/15/2019
Wall Industries, Inc. • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
website:
www.wallindustries.com
• e-mail:
sales@wallindustries.com
Page 2 of 6
Rev. C
CMCG Series
30 Watt Single Output
2:1 Input Voltage Range
Chassis Mount DC/DC Converter
MECHANICAL DRAWING
Unit: inches [mm]
3.66 [93.0]
.16 [4.06] 2X
5/15/2019
Wall Industries, Inc. • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
website:
www.wallindustries.com
• e-mail:
sales@wallindustries.com
.17 [4.3]
+ Vin
+ Out
-Vin
2.25 [57.2]
1.13 [28.6]
CNTL
-Out
TRM
4.00 [101.6]
MODEL NAME
.81 [20.6]
LABEL
Page 3 of 6
Rev. C
CMCG Series
30 Watt Single Output
2:1 Input Voltage Range
Chassis Mount DC/DC Converter
DESIGN & FEATURE CONSIDERATIONS
Remote On/Off
Positive logic remote on/off turns the module on during a logic high voltage on the remote on/off pin and off during a logic low. Negative
logic remote on/off turns the module off during a logic low and on during a logic high. To turn the power module on and off, the user must
supply a switch to control the voltage between the on/off terminal and the
-Vin
terminal. The switch can be an open collector or equivalent.
A logic low is
-0.7V to 1.0V.
A logic high is 2.5V to 100V.
The maximum sink current at the On/Off terminal (Pin 3) during a logic low is 100 mA. The maximum allowable leakage current of a switch
connected to the On/Off terminal (Pin 3) at logic high (2.5V to 100V) is 5uA.
Output Voltage Trim
Output voltage trim allows the user to increase or decrease the output voltage set point of
a module.
The output voltage can be adjusted by placing an external resistor (Radj) between the Trim and +Vout or
-Vout
terminals. By adjusting
Radj, the output voltage can be changed by ±10% of the nominal output voltage.
A 10K, 1 or 10 Turn trimpot is usually specified for continuous trimming. Trim pin may be safely left floating if it is not used.
Connecting the external resistor (R
adj (up)
) between the Trim and
-Vout
pins increases the output voltage set point as defined by the
following
equation:
R
adj( up )
=
(33
∗
V
out
)
−
(30
∗
V
adj
)
V
adj
−
V
out
(36.667
∗
V
adj
)
−
(33
∗
V
out
)
V
out
−
V
adj
Connecting the external resistor (R
adj (down)
) between the Trim and +Vout pins decreases the output voltage set point as defined by the
following equation:
R
adj( down )
=
Vout:
Vadj:
Units:
Nominal Output Voltage
Adjusted Output Voltage
VDC/KΩ
Input Source Impedance
The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of
the power module.
5/15/2019
Wall Industries, Inc. • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
website:
www.wallindustries.com
• e-mail:
sales@wallindustries.com
Page 4 of 6
Rev. C
CMCG Series
30 Watt Single Output
2:1 Input Voltage Range
Chassis Mount DC/DC Converter
Over Current Protection
To provide protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry and can endure current
limiting for an unlimited duration. At the point of current-limit inception, the unit shifts from voltage control to current control. The unit
operates normally once the output current is brought back into its specified range.
Output Over Voltage Protection
The output over voltage 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. This provides a redundant voltage
control that reduces the risk of output over voltage. The OVP level can be found in the “Output Voltage / Current Rating Chart.”
Thermal Considerations
Many conditions affect the thermal performance of the power module, such as orientation, airflow over the module, and board spacing.
To
avoid exceeding the maximum temperature rating of the components inside the power module, the case temperature must be kept below
105°C. The derating curves are determined from measurements obtained in an experimental apparatus
.
Efficiency vs Input Voltage
Efficiency vs Output Load
DERATING CURVE
5/15/2019
Wall Industries, Inc. • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
website:
www.wallindustries.com
• e-mail:
sales@wallindustries.com
Page 5 of 6
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