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Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 12/27/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 1 of 11 TECHNICAL DATASHEET In Development HVIB SERIES 175-405 VDC Input Voltage Range 12, 24, 28, & 48 VDC Single Outputs 500W DC/DC Power Converters
APPLICATIONS
Telecommunications Equipment Network (LANs/WANs) Equipment Industrial Equipment Test Equipment
FEATURES
High Power Density High Input Voltage Capability Wide Input Range Fast Transient Response Remote Sense Enable/Disable Pin ±10% Trim Capability 3000Vrms I/O Isolation Very Low Output Ripple Fixed Switching Frequency Remote On/Off (Active High/Low) Short Circuit & Over Temperature Protection 100% Burn-in High Efficiency
DESCRIPTION
The HVIB Series consists of 500 wa tt dc/dc converters with a single out put and a 175~405VDC input voltage range. The HVIB series is being introduced to answer the needs of higher power systems requiring off-line voltages at higher power levels up to 500 watts. The HVIB is particularly suited for use in telecommunications equipment, network (LANs/WANs) equipment, and industria l and test equipment. As specialists in modified standard and customized power soluti ons, Wall Industries is also capable of rapidly customizing the HVIB series to meet specific customer needs.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 12/27/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 2 of 11 TECHNICAL SPECIFICATIONS: HVIB 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 Related Condition Min Nom Max Unit INPUT (Vin) Operating Voltage Range 175 405 V UVLO Turn On at 190 200 210 V UVLO Turn Off at 160 165 170 V UVLO Hysterisis - 20 - V Maximum Input Current 300Vin @ 500W Output - 108 A No Load Input Current - TBD - A Input Current under “Disable” - TBD - mA Input Surge Voltage 100mS Wavefront - - 450 V EFFICIENCY 92% OUTPUT (Vo) Voltage Set Point Sense pins connected to respective outputs 99% 100 101 %Vo Voltage Adjustment Output limited to 500W 90% - 110% %Vo Load Regulation Sense pins connected to respective outputs - 0.05 0.4 %Vo Line Regulation Sense pins connected to respective outputs - 0.05 0.4 %Vo Temperature Drift Through operating te mperature range - 0.005 0.04 %/°C Remote Sense Compensation - - 5 %Vo Ripple Spikes Current 105 - 120 %FL Current Limit Threshold - TBD - A Maximum Admissible Output Capacitance Full load, resistive TBD μF DYNAMIC RESPONSE Load step / V 50% to 100% load step change - 5 - %Vo Recovery Time Recovery to within 1% Vo - 1 - mS Turn On Delay From enable, 1S af ter application of Vin - 20 - mS Turn On Overshoot Full load; resistive 0 - - %Vo Hold Up Time 0 mS DISABLE SIGNAL (Logic enable) Off Condition Pulled low = off, TTL co mpatible (ref. to –Vin) 0 - 0.8 V On Condition Open = on (internally pulled up), TTL - 3.3 - V ISOLATION Input-Output 1 minute 3000 - - Vrms Isolation Resistance 100 - - MΩ Isolation Capacitance 1000 pF THERMAL Case (Graph 2) -40 100 °C Over Temperature Protection - 105 - °C Storage Temperature -55 125 °C MTBF Bellcore TR-332 Issue 6 - Calculated TBD hours MECHANICAL See Figure 1 Weight TBD
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 12/27/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 3 of 11 Figure 1: Mechanical Dimensions Unit: inches [mm] MODEL SELECTION TABLE Model No. Input Voltage Range Output Voltage Output Current Output Power HVIB300S12-500 12 VDC 41.67 A 500W HVIB300S24-500 24 VDC 20.83 A 500W HVIB300S28-500 28 VDC 17.86 A 500W HVIB300S48-500
300 VDC
175 ~ 405 VDC 48 VDC 10.42 A 500W
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 12/27/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 4 of 11 DESIGN CONSIDERATIONS Under Voltage Lock Out (UVLO) The converter output is disabled until the input voltage exceeds the UVLO turn-on limit. The converter will remain ON until the input voltage falls below the UVLO turn-off limit. There is approximately 20V hysteresis in the UVLO circuit. Over Current Protection The converter is internally protected from short circuit and over current conditions. During these fault conditions, the converter output will “hiccup”- (short) or “fold back” - (over current). The converter output will recover once the short or over current fault is removed. Over Temperature Protection The converter is protected from over temperature conditions. Upon exceeding this temperature, the converter will shut down. The converter will automatically recover once it has sufficiently cooled. Input Filter A 47μF low ESR capacitor across the input pins is recommended for most system level designs. No additional input capacitance is needed for the power supply to operate with low impedance inputs. However, most “real world” system level integration will have some amount of trace or wiring lengths – raising the inductive impedance. The added input capacitor will bring the impedance back towards unity. Output Filter No additional output capacitor is needed for the power supply to operate within stated specifications. However, if it is a requirement to reduce the ripple and noise on the output, additional capacitance may be added. Usually, ceramic MLCC’s capacitor works best for reducing H.F. spike noise. Also, capacitance in the form of a tantalum or aluminum electrolytic capacitor may also be placed across the output in order reduce base ripple, and improve the load transient peak-to-peak voltage deviation. Remote Sense To improve the voltage regulation at the load, route the connections from the -Sense and the +Sense pins to the –Vout and +Vout connections AT the load. This will force the converter to regulate the voltage at the load and not at the pins of the converter. If it is not desired to use the Remotes Sense feature, the –Sense and +Sense pins should be connected to the -Vout and +Vout pins respectively. Fusing It is required that the input to the converter be supplied with a maximum 10A appropriately rated fuse for the application Safety The HVIB series is CE pending and pending approval of the following: UL1950, CUL950, TUV60950 FILE 155800. The isolation provided by the HVIB Series is a reinforced insulation in accordance with EN60950.
Figure 2. Remote (L/E)
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 12/27/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 7 of 11 Graph 1: HVIB300SXX-500 Efficiency vs. Output Current TBD Graph 2: Projected HVIB300SXX-500 Max Case vs. Output Power TBD Graph 3: HVIB300SXX-500 Power Dissipation vs. Input Voltage TBD Graph 4: HVIB300SXX-500 Input Current vs. Input Voltage TBD
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 12/27/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 9 of 11 Input Reflected Ripple Current and Input Ripple Voltage Setup The module is tested for input reflected ripple current (Irrc). The input ripple voltage is also measured at the pins with and without an additional 4,700μF electrolytic capacitor. To reduce either the input ripple current or voltage additional capacitors and/or an inductor may be added to the input of the converter. Figure 7: Ripple Current Setup (need new with 47uF capacitor, 200uH inductor) Converter Thermal Consideration The converter is designed to operate without convective cooling if the de-rating curves are followed. The converter can operate at higher temperatures and higher output currents if airflow and/or a heatsink are applied. See Graph 2 for de-rating curves or contact factory for additional thermal information.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 12/27/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 11 of 11 Ordering Information: 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: (603)778-2300 Toll Free: (888)587-9255 Fax: (603)778-9797 E-mail: sales@wallindustries.com Web: www.wallindustries.com Address: 5 Watson Brook Rd. Exeter, NH 03833 Part Number Example: HVIB 300 S 24 – 500 R TH Options Blank Active High Enable R Active Low Enable Series Designation Nominal Input Voltage Single Output Nominal Output Voltage Maximum Output Power Options Blank Threaded Hole TH Through Hole