ME [WALL]
5~6 Watt Medical DC/DC Converter;
| 型号： | ME |
| 厂家： | 
WALL INDUSTRIES,INC. |
| 描述： | 5~6 Watt Medical DC/DC Converter |
| 文件： | 总6页 (文件大小：110K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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
ME Series
5600VDC I/O Isolation
Single and Dual Outputs
Rev B
5~6 Watt Medical DC/DC Converter
SPECIFICATIONS (CONTINUED)
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
ENVIRONMENTAL
Operating Temperature (Ambient)
Operating Temperature (Case)
Storage Temperature
Over Temperature Protection
Lead Temperature
Humidity
TEST CONDITIONS
Min
Nom
Max
Unit
Ambient
Case
-40
-40
-40
107
+55
+95
+125
117
260
95
°C
°C
°C
°C
°C
%
Case Temperature, automatic
1.5mm from case for 10 seconds
112
Cooling
Temperature Coefficient
MTBF
Free air convection
±0.02 ±0.05
700,000 hours
%/°C
MIL-HDBK-217F @ 25°C, Ground Benign
Conducted EMI
EN55022 Class A
PHYSICAL
Weight
18 grams
1.25 x 0.8 x 0.47 inches
31.8 x 20.3 x 12.0 mm
Dimensions (L x W x H)
Case Material
Flammability
non-conductive black plastic
UL94V-0
MODEL SELECTION GUIDES
SINGLE OUTPUT MODELS
Output Current
Min Max
200 mA 1000 mA
Input Current
Output
Voltage
Reflected
Ripple Current
Efficiency
(Typ)
Maximum
Model Number Input Voltage
Output Power
Capacitive Load
1000 μF
470 μF
No Load Max Load
ME12S5-1000W
ME12S12-500W
ME24S5-1000W
ME24S12-500W
ME48S5-1000W
ME48S12-500W
5 VDC
570 mA
30 mA
5W
6W
5W
6W
5W
6W
75%
78%
77%
80%
77%
80%
12 VDC
60 mA
30 mA
15 mA
(9 ~ 18 VDC)
12 VDC 100 mA 500 mA
5 VDC 200 mA 1000 mA
12 VDC 100 mA 500 mA
5 VDC 200 mA 1000 mA
12 VDC 100 mA 500 mA
641 mA
278 mA
20 mA
1000 μF
470 μF
24 VDC
(18 ~ 36 VDC)
313 mA
139 mA
10 mA
1000 μF
470 μF
48 VDC
(36 ~ 75 VDC)
156 mA
DUAL OUTPUT MODELS
Output Current
Min Max
Input Current
Output
Voltage
Reflected
Ripple Current
Efficiency
(Typ)
Maximum
Capacitive Load
Model Number
Input Voltage
Output Power
No Load Max Load
ME12D12-250W
ME12D15-200W
ME24D12-250W
ME24D15-200W
ME48D12-250W
ME48D15-200W
±12 VDC ±50 mA ±250 mA 30 mA
±15 VDC ±40 mA ±200 mA 30 mA
±12 VDC ±50 mA ±250 mA 20 mA
±15 VDC ±40 mA ±200 mA 20 mA
±12 VDC ±50 mA ±250 mA 10 mA
±15 VDC ±40 mA ±200 mA 10 mA
641 mA
641 mA
313 mA
313 mA
156 mA
156 mA
6W
6W
6W
6W
6W
6W
78%
78%
80%
80%
80%
80%
220 μF #
220 μF #
220 μF #
220 μF #
220 μF #
220 μF #
12 VDC
100mA
50mA
25mA
(9 ~ 18 VDC)
24 VDC
(18 ~ 36 VDC)
48 VDC
(36 ~ 75 VDC)
# For each output
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 ME 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.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
ME Series
5600VDC I/O Isolation
Single and Dual Outputs
Rev B
5~6 Watt Medical DC/DC Converter
BLOCK DIAGRAMS
Single Output
Dual Output
INPUT VOLTAGE TRANSIENT RATING
150
140
130
120
110
100
90
48VDC Input Models
80
70
24VDC Input Models
12VDC Input Models
60
50
40
30
20
10
0
10uS
100uS
1mS
10mS
100mS
DERATING CURVES
Derating Curve (5V Output Models Only)
Derating Curve (For All Other Models)
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
ME Series
5600VDC I/O Isolation
Single and Dual Outputs
Rev B
5~6 Watt Medical DC/DC Converter
MECHANICAL DRAWING
Unit: inches (mm)
PIN CONNECTIONS
Pin
1
Single Output
+Vin
Dual Output
+Vin
11
12
13
15
23
24
No Pin
-Vout
Common
No Pin
-Vout
+Vout
No Pin
-Vin
+Vout
-Vin
-Vin
-Vin
1. Tolerance: X.X±0.25 (X.XX±0.01)
X.XX±0.13 (X.XXX±0.005)
2. Pin: ±0.05 (±0.002)
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
ME Series
5600VDC I/O Isolation
Single and Dual Outputs
Rev B
5~6 Watt Medical DC/DC Converter
DESIGN & FEATURE CONSIDERATONS
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. In applications where power is supplied over long lines and output loading is high, it may
be necessary to use a capacitor at the input to ensure startup. A capacitor mounted close to the power module helps ensure
stability of the unit. It is recommended to use a good quality low Equivalent Series Resistance (ESR < 1.0Ω at 100KHz)
capacitor of 10μF for the 12V input models, 4.7μF for the 24V input models, and a 2.2μF for the 48V input models.
+
+Vin
+Out
+
DC / DC
Converter
DC Power
Source
Load
Cin
-
-Vin
-Out
Maximum Capacitive Load
The ME Series has a limit of connected capacitance at the output. The power module may operate in current limiting mode
during start-up, which affects the ramp-up and the startup time. Connect capacitors at the point of load for best performance.
The maximum capacitive load can be found in the “Output Voltage / Current Rating Chart” on page 2.
TEST CONFIGURATIONS
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with an inductor Lin (4.7μH) and Cin (220μF, ESR < 1.0Ω at 100KHz) to simulate
source impedance.
To Oscilloscope
+Vin
+Out
+
+
Lin
DC / DC
Converter
Current
Probe
Load
Battery
Cin
-Vin
-Out
Capacitor Cin offsets possible battery impedance.
Current ripple is measured at the input terminals of the module. Measurement bandwidth is 0 ~ 500KHz.
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.47μF ceramic capacitor.
Scope measurement should be made by using a BNC socket; measurement bandwidth is 0 ~ 20MHz. Position the load
between 50mm and 75mm from the DC/DC Converter.
Copper Strip
Cout
+Vin
+Out
-Out
Copper Strip
Cout
+Vin
+Out
Com.
-Out
Scope
Scope
Single Output
DC / DC
Converter
Dual Output
DC / DC
Converter
Resistive
Load
Resistive
Load
Scope
Cout
-Vin
-Vin
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
ME Series
5600VDC I/O Isolation
Single and Dual Outputs
Rev B
5~6 Watt Medical DC/DC Converter
Output Ripple Reduction
A good quality low ESR capacitor placed as close as possible across the load will give the best ripple and noise performance.
To reduce output ripple it is recommended to use a 3.3μF capacitor at the output.
+
+Vin
-Vin
+Out
+
+Vin
-Vin
+Out
Com.
-Out
Single Output
DC / DC
Converter
Dual Output
DC / DC
Converter
Cout
Load
DC Power
Source
DC Power
Source
Cout
Load
-
-Out
-
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 95°C. The derating curves are determined from measurements obtained in an experimental
apparatus.
Position of air velocity
probe and thermocouple
Air Flow
50mm / 2in
15mm / 0.6in
DUT
Electromagnetic Emission EN 55022 < A
Conducted and radiated emissions < A with external coupling capacitor Cio=1nF < B
COMPANY INFORMATION:
Wall Industries, Inc. has created custom and modified units for over 40 years. Our in-house research and development
engineers will provide a solution that exceeds your performance requirements on time and on budget. Our ISO9001-2000
certification is just one example of our commitment to producing a high quality, well documented product for our customers.
Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working
closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to
provide ongoing support for your project above and beyond the design and production phases. Give us a call today to
discuss your future projects.
Contact Wall Industries for further information:
Phone:
Toll Free:
Fax:
(603)778-2300
(888)587-9255
(603)778-9797
E-mail:
Web:
Address:
sales@wallindustries.com
www.wallindustries.com
5 Watson Brook Rd.
Exeter, NH 03833
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
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