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DMW Ultra Wide Series
Single and Dual Output 15 Watt DC/DC Converter 4:1 Ultra Wide Input Voltage Range FEATURES
1500VDC Isolation Efficiency up to 86% Six-Sided Shielding MTBF>700,000 Hours Remote On/Off Control UL1950 Safety Approval Internal SMT Construction 4:1 Ultra Wide Input Range UL 94V-0 Package Material Complies with EN55022 Class A
SPECIFICATIONS: DMW Ultra Wide Series
All specifications are based on 25oC, 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
INPUT (Vin) Operating Voltage Range Start Voltage (24V input models) Start Voltage (48V input models) Under Voltage Shutdown (24V input models) Under Voltage Shutdown (48V input models) Reverse Polarity Input Current Short Circuit Input Power Input Surge Voltage (1000ms) (24V input models) Input Surge Voltage (1000ms) (48V input models) Input Filter OUTPUT (Vo) Output Voltage Range Output Voltage Accuracy Output Voltage Balance Load Regulation Line Regulation Output Power Output Current Range Ripple & Noise (peak to peak) Ripple & Noise (peak to peak) Ripple & Noise Transient Recovery Time Transient Response Deviation REMOTE ON/OFF Supply On Supply Off Standby Input Current Control Input Current (On) Control Input Current (Off) Control Common PROTECTION Over Power Protection Short Circuit Protection Input Fuse Recommendation (24V input models) Input Fuse Recommendation (48V input models) GENERAL Efficiency Switching Frequency Isolation Voltage Rated Isolation Voltage Test Isolation Resistance Isolation Capacitance Internal Power Dissipation 8 15 7 13 -0.7 -0.7 9-36, 18-75 8.5 17 8 15 3500 50 100 Pi Filter See Rating Chart 1.0 2.0 0.5 2.0 0.5 1.0 0.1 0.5 15 See Rating Chart 55 80 100 15 300 500 2 4 9 18 8.5 17 1
Unit
VDC VDC VDC VDC VDC A mW VDC VDC
Dual Output, Balanced Loads Io = 10% to 100% Vin = min. to max. 20MHz Over Line, Load, and Temperature 25% load step change 25% load step change
% % % % W mVpk-pk mVpk-pk mVrms s %
Vin - RC = 5.0V Vin - RC = 0V
2.5 to 5.5VDC or Open Circuit -0.7 0.8 VDC 10 mA 50 mA -1 mA Referenced to negative input 120 % Continuous 2500mA Slow-Blow Type 1250mA Slow-Blow Type See Rating Chart 330 400 KHz VDC VDC M pF mW
60 seconds Flash Test for 1 second 500VDC 100KHz, 1V
290 1500 1650 1000
1200
1500 5,000
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797
DMW Ultra Wide Series
Single and Dual Output 15 Watt DC/DC Converter 4:1 Ultra Wide Input Voltage Range
SPECIFICATION
ENVIRONMENTAL Operating Temperature (Ambient) Operating Temperature (Case) Storage Temperature Lead Temperature Humidity Cooling RFI Temperature Coefficient MTBF Conducted EMI PHYSICAL Weight Dimensions Case Material Flammability Heatsink material Heatsink finish
TEST CONDITIONS
Min
-40 -40 -50
Nom
Max
Unit
1.5mm from case for 10 seconds
MIL-HDBK-217F @ 25C, Ground Benign
+60 C +100 C +125 C 260 C 95 % Free air convection Six-sided shielding, metal case 0.01 0.02 %/C 700 Khours EN55022 Class A 32 grams (heatsink 2g) 2.0 x 1.0 x 0.4 inches Metal with non-conductive baseplate UL94V-0 Aluminum Anodic treatment (black)
OUTPUT VOLTAGE / CURRENT RATING CHART
Model Number DMW24S3.3-3000 DMW24S5-3000 DMW24S5.1-3000 DMW24S12-1250 DMW24S15-1000 DMW24D5-1500 DMW24D12-625 DMW24D15-500 DMW48S3.3-3000 DMW48S5-3000 DMW48S5.1-3000 DMW48S12-1250 DMW48S15-1000 DMW48D5-1500 DMW48D12-625 DMW48D15-500 Input Voltage Output Voltage 3.3 VDC 5 VDC 5.1 VDC 12 VDC 15 VDC 5 VDC 12 VDC 15 VDC 3.3 VDC 5 VDC 5.1 VDC 12 VDC 15 VDC 5 VDC 12 VDC 15 VDC Output Current Min Max 300 mA 3000mA 300 mA 3000 mA 300 mA 3000 mA 125 mA 1250 mA 100 mA 1000 mA 150 mA 1500 mA 62.5 mA 625 mA 50 mA 500 mA 300 mA 3000 mA 300 mA 3000 mA 300 mA 3000 mA 125 mA 1250 mA 100 mA 1000 mA 150 mA 1500 mA 62.5 mA 625 mA 50 mA 500 mA Input Current Reflected Efficiency Max Capacitive (Typ) Load No Load Max Load Ripple Current 528 mA 78% 470 F 762 mA 82% 470 F 735 mA 81% 470 F 726 mA 85% 470 F 25mA (typ) 40mA (typ) 771 mA 86% 470 F 735 mA 81% 220 F 726 mA 85% 220 F 787 mA 86% 220 F 26 mA 78% 470 F 381 mA 82% 470 F 368 mA 81% 470 F 363 mA 85% 470 F 15mA (typ) 30mA (typ) 386 mA 86% 470 F 368 mA 81% 220 F 363 mA 85% 220 F 393 mA 86% 220 F
24 VDC (9 ~ 36 VDC)
48 VDC (18 ~ 75 VDC)
NOTES
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
Specifications typical at +25C, resistive load, nominal input voltage, rated output current unless otherwise noted. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%. Ripple and noise measured at 20MHz bandwidth. The DMW series requires a minimum 10% load on the output to maintain specified regulation. Operation under no-load condition will not damage these devices, however they may not meet all listed specifications. All DC/DC converters should be externally fused at the front end for protection. Other input and output voltages may be available, please contact factory. On/Off control is optional, please contact factory. Control voltage referenced to negative input (-Vin). Pin to pin tolerance 0.01". Pin diameter tolerance 0.002". MIL-HDBK-217F @ 25C, ground benign. Heat-sink is optional, consult factory.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797
DMW Ultra Wide Series
Single and Dual Output 15 Watt DC/DC Converter 4:1 Ultra Wide Input Voltage Range MECHANICAL DRAWING Standard With Heatsink
1. All dimensions in Inches (mm) Tolerance: X.X0.0.1 (X.X0.25) X.XX0.005 (X.XX0.13) 2. Pin: 0.002(0.05)
PIN CONNECTIONS
PIN 1 2 3 4 5 6 SINGLE OUTPUT DUAL OUTPUT +Vin +Vin -Vin -Vin +Vout +Vout No Pin Common -Vout -Vout Remote ON/OFF (Optional)
The Advantages of adding a Heatsink: 1. To help heat dissipation and increase the stability and reliability of DC/DC converters at high operating temperature atmosphere.
2. To upgrade the operating temperature of DC/DC converters, please refer to the Derating Curve.
The DMW 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
DMW Ultra Wide Series
Single and Dual Output 15 Watt DC/DC Converter 4:1 Ultra Wide Input Voltage Range DESIGN & FEATURE CONSIDERATONS 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. 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 0.8V. A logic high is 2.5V to 5.5V. The maximum sink current at on/off terminal during a logic low is -1mA. The maximum allowable leakage current of the switch at on/off terminal (2.5 to 5.5V) is 50uA. 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. 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. 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 < 1.0 at 100 KHz) capacitor of a 10uF for the 24V and 48V input devices.
Maximum Capacitive Load The DMW Series has a limitation of maximum connected capacitance at the output. The power module may be operated in current limiting mode during start-up, affecting the ramp-up and the startup time. For optimum performance we recommend 220uF maximum capacitive load for dual outputs and 470uF capacitive load for single outputs. The maximum capacitance can be found in the Output Voltage / Current Rating Chart.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797
DMW Ultra Wide Series
Single and Dual Output 15 Watt DC/DC Converter 4:1 Ultra Wide Input Voltage Range
Efficiency vs Input Voltage ( Single Output )
Efficiency vs Input Voltage ( Dual Output )
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
Derating Curve without Heatsink
Derating Curve with Heatsink
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797
DMW Ultra Wide Series
Single and Dual Output 15 Watt DC/DC Converter 4:1 Ultra Wide Input Voltage Range BLOCK DIAGRAMS
Single Output Dual Output
Input Voltage Transient Rating
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797
DMW Ultra Wide Series
Single and Dual Output 15 Watt DC/DC Converter 4:1 Ultra Wide Input Voltage Range TEST CONFIGURATIONS Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with an inductor Lin (4.7uH) and Cin (220uF, ESR < 1.0 at 100 KHz) to simulate source impedance. Capacitor Cin offsets possible battery impedance. Current ripple is measured at the input terminals of the module. Measurement bandwidth is 0-500 KHz.
Peak-to-Peak Output Noise Measurement Test Use a Cout 0.47uF ceramic capacitor. Scope measurement should be made by using a BNC socket; measurement bandwidth is 0-20 MHz. Position the load between 50 mm and 75 mm from the DC/DC Converter.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797
DMW Ultra Wide Series
Single and Dual Output 15 Watt DC/DC Converter 4:1 Ultra Wide Input Voltage Range 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 4.7uF capacitors at the output.
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 100C. The derating curves are determined from measurements obtained in an experimental apparatus.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797
DMW Ultra Wide Series
Single and Dual Output 15 Watt DC/DC Converter 4:1 Ultra Wide Input Voltage Range 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: E-mail: Web: Address: (603)778-2300 (888)587-9255 (603)778-9797 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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