ME Series
5600VDC I/O Isolation
Single and Dual Outputs
Rev B
5~6 Watt Medical DC/DC Converter
FEATURES
● Efficiency up to 80%
● Low Leakage Current
● Single & Dual Outputs
● 5600VDC I/O Isolation
● Short Circuit Protection
● MTBF > 700,000 Hours
● Low Isolation Capacitance
● 2:1 Wide Input Voltage Range
● Operating Temperature: -40°C to +55°C
● Medical Safety Approval UL/cUL 60601-1
● All I/O Clearance and Creepage Distance 2.0mm min.
● Complies with EN55022 Class A with External Coupling Capacitor Cio=1nF < Class B
DESCRIPTION
The ME series of medical approved (UL/cUL 60601-1) dc/dc converters are specially designed to provide ultra high levels of isolation (5600VDC) in
a 24-pin DIP 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 5, 12, ±12, and ±15VDC. The -40°C to +55°C operating temperature makes this series of dc/dc
converters ideal for data communication equipment, mobile battery driven equipment, distributed power systems, process/machine control
equipment, telecommunications equipment, mixed analog/digital subsystems, computer peripheral systems, and industrial robot systems. These
converters have a power rating of 6W and a typical full load efficiency of 80%. This series complies with EN55022 Class A conducted noise and
radiated emissions with an external coupling capacitor Cio=1nF < Class B. The EN55022 Class A conducted noise compliance minimizes design
time, cost, and eliminates the need for external filter components. All models are over load and short circuit protected.
SPECIFICATIONS: ME 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
INPUT (Vin)
TEST CONDITIONS
Min
Nom
Max
Unit
VDC
VDC
12V nominal input models
24V nominal input models
48V nominal input models
12V nominal input models
24V nominal input models
48V nominal input models
12V nominal input models
24V nominal input models
48V nominal input models
All models
9
12
24
48
8
15
33
18
36
75
9
18
36
8.5
16
34
3000
25
Input Voltage Range
Start Voltage
18
36
7
13
30
Under Voltage Shutdown
Short Circuit Input Power
Input Surge Voltage (1000ms)
VDC
mW
12V nominal input models
24V nominal input models
48V nominal input models
-0.7
-0.7
-0.7
50
100
VDC
Input Filter
Pi Filter
Leakage Current
OUTPUT (Vo)
240VAC, 60Hz
2
μA
Output Voltage
See Table
Output Voltage Accuracy
Output Voltage Balance
Load Regulation
Line Regulation
±0.5
±0.5
±0.5
±0.3
±1.0
±2.0
±1.0
±0.5
%
%
%
%
Dual Output, Balanced Loads
Io = 25% to 100%
Vin = min. to max.
Output Power
Output Current Range
See Table
See Table
5V output models
Other output models
Over Line, Over Load, and Over Temperature
75
100
100
150
180
25
500
±6
Ripple & Noise (20MHz)
mVpk-pk
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Transient Recovery Time
Transient Response Deviation
PROTECTION
mVpk-pk
mVrms
μs
25% load step change
25% load step change
300
±3
%
Over Load Protection
Short Circuit Protection
120
%
Continuous
12V nominal input models
24V nominal input models
48V nominal input models
1200mA slow-blow type
600mA slow-blow type
300mA slow-blow type
Input Fuse Recommendation
GENERAL
Efficiency
See Table
150
Switching Frequency
Isolation Voltage Rated
Isolation Voltage Test
Isolation Resistance
Isolation Capacitance
Internal Power Dissipation
Max. Capacitive Load
KHz
VDC
VDC
MΩ
pF
mW
60 seconds
Flash Test for 1 second
500VDC
5600
6000
1000
100KHz, 1V
7
13
2500
See Table
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797