DATASHEET Rev. B LTW SERIES 4:1 Ultra Wide Input Voltage Ranges Triple Outputs 2.0 x 2.0 x 0.52 Inch Package 15W DC/DC Power Converters FEATURES • Triple Outputs • RoHS Compliant • 4:1 Ultra Wide Input Voltage Ranges • 15 Watts Output Power • Efficiency up to 80% • 100% Burn-in Tested • Short Circuit Protection • Remote ON/OFF Control • Six-Sided Shielding • 2.0 x 2.0 x 0.52 Inch Package APPLICATIONS • 1500VDC I/O Isolation • Wireless Networks • Wide Operating Temperature Range: -40°C to +85°C • Telecom / Datacom • MTBF > 1,500,000 Hours • Measurement Equipment • UL 94V-0 Package Material • Industry Control Systems • UL60950-1 Approvals • Semiconductor Equipment • Custom Solutions Available DESCRIPTION The LTW series of DC/DC power converters provides 15 Watts of continuous output power in a 2.0” x 2.0” x 0.52” package. This series has triple output models with 4:1 ultra wide input voltage ranges of 9-36VDC and 2072VDC. Some features include 1500VDC I/O isolation, remote ON/OFF control, six-sided shielding, efficiency up to 80%, and short circuit protection. This series is RoHS compliant and has UL 60950-1 safety approvals. These units are well suited for use in wireless networks, telecom/datacom applications, measurement equipment, industry control systems, and semiconductor equipment. All models are 100% burn-in tested. 08/26/2014 Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 1 of 4 LTW Series 15 Watts Triple Outputs DC/DC Power Converters Rev. B SPECIFICATIONS: LTW 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 TEST CONDITIONS Min Nom Max 24VDC nominal input models 9 24 36 48VDC nominal input models 20 48 72 Unit INPUT SPECIFICATIONS Input Voltage Range Input Filter VDC capacitor Remote ON/OFF yes OUTPUT SPECIFICATIONS Output Voltage Voltage Accuracy See Table 5VDC output, Io=1.5A ±5 ±12VDC outputs, Io=0.31A ±2 ±15VDC outputs, Io=0.25A Load Regulation 25% to 100% full load Line Regulation low line to high line at full load % ±2 ±0.2 Output Power ±1.0 % 15 W 0 Output Current % See Table Ripple & Noise 20MHz Bandwidth Transient Response Time 50% load step change 100 mVp-p 350 µs PROTECTION Short Circuit Protection Continuous, automatic recovery GENERAL SPECIFICATIONS Efficiency 80 % Switching Frequency 100 KHz Isolation Voltage (input to output) (2sec/0.5mA) 1500 VDC Isolation Resistance (input to output) 500VDC 1000 MΩ ENVIRONMENTAL SPECIFICATIONS Operating Temperature With derating (see derating curve) Storage Temperature -40 +85 °C -40 +100 °C 95 % Humidity (non-condensing) Cooling MTBF Free air convection MIL-HDBK-217F at 25°C, ground benign 1,500,000 hours PHYSICAL SPECIFICATIONS Case Material black coated copper with non-conductive base Potting Material Epoxy (UL94V-0 rated) Shielding Six-sided Weight 2.51oz (71.2g) 2.0 x 2.0 x 0.52 inches (50.8 x 50.8 x 13.2 mm) Dimensions (L x W x H) SAFETY & EMI Conducted Emissions EN55022 Class A Radiated Emissions EN55022 Class A Safety Approvals 08/26/2014 UL 60950-1 Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 2 of 4 LTW Series 15 Watts Triple Outputs DC/DC Power Converters Rev. B MODEL SELECTION TABLE Model Number Input Voltage Range Vo1 LTW2412-15EI LTW2415-15EI LTW4812-15EI LTW4815-15EI 24 VDC Vo2 Vo3 Vo1 Vo2 Vo3 Vo1 (9 – 36 VDC) 24 VDC (9 – 36 VDC) 48 VDC Vo2 Vo3 Vo1 Vo2 Vo3 (20 – 72 VDC) 48 VDC (20 – 72 VDC) Output Voltage Output Current Output Power 5 VDC 1.5A +12 VDC -12 VDC 5 VDC +15 VDC -15VDC 5 VDC 0.31A 0.31A 1.5A 0.25A 0.25A 1.5A 15W +12 VDC -12 VDC 5 VDC +15 VDC -15VDC 0.31A 0.31A 1.5A 0.25A 0.25A 15W 15W 15W APPLICATIONS Test Circuit Recommended Filter for EN55022 Class A Compliance 100uF/25V +Vin 12uH +Vo1 Cin +Vo2 Triple Cout +Vin L C1 +Vout DC/DC Converter C2 COM Load Cout GND +Vo3 47uF 100uF/25V 33uF -Vin -Vout 24V & 48V:Cin 100uF,100V GRAPHS Derating Curve Tolerance 120 Output Voltage (%) Output Power (%) 100 75 50 25 Natural Convection 110 100 90 80 70 0 -40 75 85 100 10 20 30 40 50 60 70 80 90 100 110 120 Ambient Temperature (°C) 08/26/2014 Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Output Current (%) Page 3 of 4 LTW Series 15 Watts Triple Outputs DC/DC Power Converters Rev. B MECHANICAL DRAWING Unit: inches (mm) Heatsink Surface 0.52 max (13.2) max PIN CONNECTIONS 0.016 (0.4) 0.90 (22.86) 0.04±0.002 (1.0±0.05) 0.10 (2.54) Triple 1 +Vin 0.24±0.024 (6.1±0.61) 2 -Vin (Pin length is taken from bottom of standoff to bottom of pin) 4 Control 5 Vo2 6 Vo1 7 COM 8 Vo3 5 1 2 BOTTOM VIEW 4 6 7 8 2.0 (50.8) Ø0.08±0.004 (Ø2±0.1) x 4 0.40 0.40 0.40 (10.16) (10.16) (10.16) 0.40 (10.16) 0.20 (5.08) Pin 0.008±0.004 (0.2±0.1) 0.10 (2.54) 2.0 (50.8) Tolerance: X.X±0.02 (XX.X±0.5) X.XX±0.01 (XX.XX±0.25) NOTES 1. All case and pin to case are for reference only unless otherwise noted. 2. P.C. pins: 0.04 (1.0) dia x 0.26 (6.60) long. 3. Pin to Pin Tolerance: ±0.01 (0.25) Pin Diameter Tolerance: ±0.002 (0.05) 4. 10% minimum load required. 5. Remote pin can be left floating if not used. 6. Significant capacitive load on output may inhibit start-up and operation. 7. All DC/DC converters should be externally fused on the front end for protection. COMPANY INFORMATION Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2008 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: 08/26/2014 (603)778-2300 (888)587-9255 (603)778-9797 [email protected] www.wallindustries.com 37 Industrial Drive Exeter, NH 03833 Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 4 of 4