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 3000Vrms I/O Isolation High Input Voltage Capability Very Low Output Ripple Wide Input Range Fixed Switching Frequency Fast Transient Response Remote On/Off (Active High/Low) Remote Sense Short Circuit & Over Temperature Protection Enable/Disable Pin 100% Burn-in ±10% Trim Capability High Efficiency DESCRIPTION The HVIB Series consists of 500 watt dc/dc converters with a single output 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 industrial and test equipment. As specialists in modified standard and customized power solutions, Wall Industries is also capable of rapidly customizing the HVIB series to meet specific customer needs. 12/27/2011 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 1 of 11 In Development TECHNICAL DATASHEET HVIB Series 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 INPUT (Vin) Operating Voltage Range Min Nom Max Unit 405 V 175 UVLO Turn On at 190 200 210 V UVLO Turn Off at 160 165 170 V - UVLO Hysterisis Maximum Input Current 300Vin @ 500W Output No Load Input Current Input Current under “Disable” Input Surge Voltage 100mS Wavefront - 20 - 108 - TBD - V A - A TBD - mA - 450 V 92% EFFICIENCY 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 temperature range - 0.005 0.04 %/°C - - 5 %Vo 105 - 120 %FL - TBD - Remote Sense Compensation Ripple Spikes Current Current Limit Threshold Maximum Admissible Output Capacitance Full load, resistive DYNAMIC RESPONSE Load step / V Recovery Time 50% to 100% load step change - 5 - %Vo Recovery to within 1% Vo - 1 - mS TBD A μF Turn On Delay From enable, 1S after 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 compatible (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 Over Temperature Protection - Storage Temperature MTBF -55 Bellcore TR-332 Issue 6 - Calculated 100 °C - °C 125 °C TBD hours See Figure 1 MECHANICAL TBD Weight 12/27/2011 105 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 2 of 11 TECHNICAL DATASHEET In Development HVIB Series MODEL SELECTION TABLE Model No. Input Voltage Range HVIB300S12-500 Output Voltage Output Current Output Power 12 VDC 41.67 A 500W HVIB300S24-500 300 VDC 24 VDC 20.83 A 500W HVIB300S28-500 175 ~ 405 VDC 28 VDC 17.86 A 500W 48 VDC 10.42 A 500W HVIB300S48-500 Figure 1: Mechanical Dimensions Unit: inches [mm] 12/27/2011 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 3 of 11 In Development TECHNICAL DATASHEET HVIB Series 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. 12/27/2011 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 4 of 11 In Development TECHNICAL DATASHEET HVIB Series Remote ON/OFF The HVIB series has Remote ON/OFF (Enable/Disable) capability using TTL logic levels. This function is offered as either Active=TTL High (no suffix) or Active=TTL Low (R suffix), see order details on page 14. For Remote ON/OFF limits, see page 2. Figure 2. Remote (L/E) 12/27/2011 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 5 of 11 In Development TECHNICAL DATASHEET HVIB Series Output Voltage Trim The following information is provided to allow quick calculation of the trim resistor value for a desired output voltage. The general procedure for calculating a trim resistor is as follows: 1. Determine the desired output voltage deviation %. 2. To trim down, solve for resistor value using the “Rtlow” equation. 3. To trim up, solve for resistor value using the “Rthi” equation. 4. Solved resistor values are in K ohms. Figure 3 510 10.2 Rtlow % Figure 4 5.1 Vo (100 %) 510 Rthi 10.2 % 1.2225 % Notes: 1. 2. 3. 4. Maximum trim range is ±10%. This includes remote sense drops if applicable. Output current is limited to specified current when trimming down. Output power is limited to specified power when trimming up. Trim resistors should be placed close to the module. 5. If the trim function is not used, it is advised to leave the trim pin floating / not connected. 12/27/2011 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 6 of 11 In Development TECHNICAL DATASHEET HVIB Series 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 12/27/2011 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 7 of 11 In Development TECHNICAL DATASHEET HVIB Series TEST SETUP: The HVIB series specifications are tested with the following configurations: Regulation and Efficiency Setup To ensure that accurate measurements are taken, the voltage measurements are taken directly at the terminals of the module. This minimizes errors due to contact and trace lengths between the load and the output of the supply. The following diagram is of the test setup. Figure 5: Regulation and Efficiency Probe Setup Output Ripple Voltage Setup The module is tested with a 0.1μF ceramic capacitor in parallel with a 10μF tantalum capacitor across the output terminals. Unless otherwise specified, bandwidth is limited to 20MHZ. Figure 6: Ripple Voltage Probe Setup 12/27/2011 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 8 of 11 In Development TECHNICAL DATASHEET HVIB Series 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. 12/27/2011 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 9 of 11 In Development TECHNICAL DATASHEET HVIB Series Paralleling Converters The HVIB series converters may be paralleled both for redundancy and for higher output current. However, in order to do this, a high-current, low Vf, Schottky diode must be placed at the +Vo pin of each supply as shown in Figure 8. To improve sharing, tie the two TRIM pins together. The converters may be trimmed by adding a resistor value from each TRIM pin to ±RS pin, or alternatively, a single resistor of half the value from the common TRIM pins to the common ±RS pins. Figure 8: Paralleling Converters 12/27/2011 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 10 of 11 TECHNICAL DATASHEET In Development HVIB Series Ordering Information: Part Number Example: HVIB 300 S 24 – 500 R TH Series Designation Nominal Input Voltage Single Output Nominal Output Voltage Maximum Output Power Options Blank R Options Blank TH Threaded Hole Through Hole Active High Enable Active Low Enable 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: 12/27/2011 (603)778-2300 (888)587-9255 (603)778-9797 [email protected] 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 Page 11 of 11