ECM140 Series
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High Efficiency Resonant Topology
High Power Density 7.2 W/in
3
Convection & Force-cooled Ratings
Class I & Class II Installations
Industry Standard 3.0” x 5.0” x 1.30” Format
12 V Fan Output as Standard
5 V Standby Option
Remote Sense as Standard
IT, Industrial & Medical Safety Approvals
Remote On/Off & Power Good Signals Option
Approved for Class I and Class II applications, the ECM140 range of single output AC-DC, 148 W power supplies feature high power
density in an industry standard 3 x 5" (76.2 mm x 127.0 mm) footprint. The 1.30" (33.0 mm) high, 1U compatible high-density power
supplies meet EN55022 Level B conducted emissions with leakage currents of 100 μA at 115 VAC or 215 μA at 230 VAC. Making
these switchers ideal for industrial, IT and medical applications.
The ECM140 series has single output versions from 12 V to 48 VDC, adjustable by ±5%. All models include an additional +12V / 0.5
A fan output. They are dual-fused for compliance with IEC60601-1 and efficiency is 88% typical, so minimal excess heat is generated.
The ECM140 require only 10 CFM of cooling to deliver a full 148 W of power up to +60 °C and operates at up to +70 °C with
derating. The units also supply 120 W when convection-cooled up to +50 °C with operation to +70 °C with derating.
Comprehensive overvoltage, overload and short circuit protection is built in. Optional –A units offer a +5 V / 0.5 A standby rail, an
open collector Power OK signal and Remote On/Off function.
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Models and Ratings - Convection-cooled
Output Power
(1)
120 W
120 W
120 W
120 W
120 W
120 W
Output Voltage V1
12.0 VDC
15.0 VDC
18.0 VDC
24.0 VDC
28.0 VDC
48.0 VDC
Max
Output Current V1
10.0
8.0
6.6
5.0
4.2
2.5
A
A
A
A
A
A
Fan Output
V2
12.0 V/0.5
12.0 V/0.5
12.0 V/0.5
12.0 V/0.5
12.0 V/0.5
12.0 V/0.5
A
A
A
A
A
A
Standby Supply
V3 (optional)
5.0 V/0.5
5.0 V/0.5
5.0 V/0.5
5.0 V/0.5
5.0 V/0.5
5.0 V/0.5
A
A
A
A
A
A
Model Number
(2,3)
ECM140US12
ECM140US15
ECM140US18
ECM140US24
ECM140US28
ECM140US48
Notes:
1. Convection-cooled, max output power must not exceed 120 W for combined
V1, V2, & V3
2. For V3 5 V standby, Power OK & Inhibit, add suffix ‘-A’ to model number.
3. For covered versions, add suffix ‘-C’ to model number or order part no.
ECM140 COVER KIT for standalone cover. Not suitable for use in
class II installations.
Models and Ratings - Forced-cooled
Output Power
(1)
148 W
148 W
148 W
148 W
148 W
148 W
Output Voltage V1
12.0 VDC
15.0 VDC
18.0 VDC
24.0 VDC
28.0 VDC
48.0 VDC
Max
Output Current V1
11.7
9.3
7.7
5.8
5.0
2.9
A
A
A
A
A
A
Fan Output
V2
12.0 V/0.5
12.0 V/0.5
12.0 V/0.5
12.0 V/0.5
12.0 V/0.5
12.0 V/0.5
A
A
A
A
A
A
Standby Supply
V3 (optional)
5.0 V/0.5
5.0 V/0.5
5.0 V/0.5
5.0 V/0.5
5.0 V/0.5
5.0 V/0.5
A
A
A
A
A
A
Model Number
(2)
ECM140US12
ECM140US15
ECM140US18
ECM140US24
ECM140US28
ECM140US48
Notes:
1. 10 CFM airflow.
2. For V3 5 V standby, Power OK & Inhibit, add suffix ‘-A’ to model number.
3. For cover with Top Fan assembly add ‘-TF’ to model numer,
e.g. ECM140US12-TF or ECM140US12-ATF.
Input Characteristics
Characteristic
Input Voltage - Operating
Input Frequency
Power Factor
Input Current - No Load
Input Current - Full Load
Inrush Current
Earth Leakage Current
Input Protection
100/215
0.5/1.1
T5.0A/250 V internal fuse in both line and neutral
Minimum
80
47
Typical
115/230
50/60
>0.5
0.25/0.2
2.5/1.3
40
265
A
A
A
μA
mA
Maximum
264
400
Units
VAC
Hz
Notes & Conditions
Derate output power < 90 VAC. See fig. 1. Power
OK signal cannot be used <90 VAC.
Agency approval 47-63 Hz
230 VAC, 100% load
EN61000-3-2 class A compliant
115/230 VAC
115/230 VAC
230 VAC cold start, 25 şC
115/230 VAC/50 Hz (Typ.), 264 VAC/60 Hz (Max.)
115/230 VAC/400 Hz
Output Characteristics
Characteristic
Output Voltage - V1
Initial Set Accuracy
Output Voltage Adjustment
Minimum Load
Start Up Delay
Hold Up Time
Drift
Line Regulation
Load Regulation
Transient Response - V1
Over/Undershoot - V1
Ripple & Noise
Overvoltage Protection
Overload Protection
Short Circuit Protection
Temperature Coefficient
Overtemperature Protection
0.05
%/˚C
°C
Not fitted
115
110
5
1
(V1)
Minimum
12
Typical
±1
Maximum
48
(V1)
Units
VDC
(V3)
Notes & Conditions
See Models and Ratings table
50% load, 115/230 VAC
V1 only via potentiometer. See mech. details (P13).
V2 min load for regulation only when used
230 VAC full load (see fig.2)
115 VAC full load (see fig.3 & 4)
After 20 min warm up
90-264 VAC
0-100% load. V2 0.1-0.5 A load
Recovery within 1% in less than 500 μs
for a 50-75% and 75-50% load step
See fig.5
20 MHz bandwidth (see fig.6 & 7)
Vnom DC. Output 1 only, recycle input to reset
Output 1 only, auto reset (see fig.8)
Continuous, trip & restart (hiccup mode) all outputs
, ±5
(V2)
& ±3
%
%
A
±5
0
(V1 & V3)
& 0.1
(V2)
1.5
16
20
±0.2
±0.5
±1
(V1)
, ±5
(V2 & V3)
4
s
ms
%
%
%
%
%
&2
(V2 & V3)
% pk-pk
%
% I nom
140
150
2
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Input Voltage Derating
148
10 CFM Force-cooled
Output Power (W)
120
100
84
Convection-cooled
Figure. 1
Convection-cooled with cover
60
80
90
Input Voltage (VAC)
264
Start Up Delay From AC Turn On
AC
Figure 2
V1, V2 & V3 start up example
from AC turn on
V1
V2
V3 (optional)
Hold Up Time From Loss of AC
Figure 3
V1 hold up example at 120 W load
with 90 VAC input (16.7 ms)
Figure 4
V1, V2 & V3 hold up example at
120 W load 90 VAC input
3
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Output Overshoot
Figure 5
Typical Output Overshoot
(ECM140US12 shown)
Output Ripple & Noise
Figure 6
V1 ECM140US12 (full load)
27 mV pk-pk ripple. 20 MHz BW
4
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Output Ripple & Noise cont.
Figure 7
V1 ECM140US12 (full load)
39 mV pk-pk ripple. 20 MHz BW
Output Overload Characteristic
14
12
10
Output Volts (V)
8
6
4
2
0
0
1
2
3
9
10
11
12
13
Figure 8
Typical V1 Overload
Characteristic
(ECM140US12 shown)
Output enters
Trip & Restart Mode
Output Current (A)
5
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