PFC-375 Series 375 Watt PFC Front End Univerter® Power Factor Correction Module The Univerter PFC-375 Power Factor Correction modules are AC to DC converters that operate from a wide range of AC input voltages and frequencies with extremely high conversion efficiency and near unity power factor. The PFC-375 produces an output of 375 VDC suitable for driving 300V input DC-DC converters, motors, pumps and a host of other loads. The wide AC input voltage range and frequency range are 90 to 265 VAC and 47 to 880 Hz respectively, making this product suitable for land, sea and air based applications requiring AC to DC conversion with line harmonic reduction or PFC. Typical applications include 115/230 VAC, 50/60 Hz systems and 115 VAC, 400 Hz or 360-800 Hz military and commercial aircraft power systems requiring MIL-STD-704 or DO-160 compliance. These compact, rugged modules use advanced e lec tr ic al d es i gn a n d th er m al m ana g em ent techniques to m ak e them suitable for harsh environments and thermally challenged applications. FEATURES Optimized for Airborne and other Harsh Environment Applications Compact 1/2 Brick Package 2.4 x 2.3 x 0.5 in. MODEL SELECTION Part Number Structure: 90-265 VAC INPUT, 47-800Hz 370VDC Output W Efficiency 94% typical 115VAC, 400Hz Input, 97% typical at 230VAC, 50Hz input Extremely High Power Factor and Low THD Potted Module with IMS Technology -40°C to +100°C Base Plate Rated – No Output Power Derating Available in Lead Free ROHS Compliant or SnPb Solder Versions Ride-Through Time is very long and depends only on the Bulk Cap Voltage, down to 40 Vdc. Load Enable directly interfaces with MicroVerter and PicoVerter DC-DC Converter logic on/off pin. XX YYY PFC-375W-XX-YYY A: Aux Power Output P: Parallel Option T: Extended Temp Range -55°C to +100°C C: Conformal Coating LF: Lead Free and RoHS Compliant RL: Tin-Free construction Other Special Configurations TBD MODEL Input Voltage, VAC Input Frequency, Hz PFC-375 90 - 265 47 - 880 PFC-375 Series 375 Watt Power Factor Correction Module 375 VDC Output, ½ Brick Package ABSOLUTE MAXIMUM RATINGS Exceeding absolute maximum ratings may cause permanent damage or reduce reliability PARAMETER OPTION MINIMUM MAXIMUM UNITS CONDITIONS Input Voltage (AC1 to AC2) 265 VAC Continuous Input Voltage (AC1 to AC2) 280 VAC 100ms max. Circuit-to-Case Voltage 2500 Vdc Storage Temperature Standard -55 110 °C Operating Temperature Standard -40 100 °C Baseplate Operating Temperature T -55 100 °C Baseplate 260 °C < 5 sec Soldering Temperature SPECIFICATIONS Electrical specifications apply for in = 115Vac, 60 Hz to 400 Hz Full Load, Tc = 25 °C and external application circuit components shown in figure 1, unless specified otherwise. INPUT SPECIFICATIONS MINIMUM TYPICAL MAXIMUM 85 115/230 265 VAC 47 50/60/400 880 Hz Input Voltage Input Line Frequency Power Factor 0.99 UNITS CONDITIONS 1.0 Total Harmonic Distortion <5% Maximum Input Current 3.5 4.5 % Conforming to IEC 1000-3-2 Arms Vin = 90VAC, Full Load, Tc = 25°C Inrush Current Input 115 Vac 15 Apeak Thermistor Temperature 25°C Input 230 Vac 30 Apeak Thermistor Temperature 25°C µArms Vin = 115VAC, TC=25°C Input-to-Case Leakage Current Start-up Voltage Input Under Voltage Hold-up time/Ride Through time Astrodyne Corp. 1-800-823-8082 TBD 70 80 65 85 75 30 VAC 85 VAC ms PFC-375 Datasheet 05-02-12 HV Bus voltage at end of hold-up/ride through interval – 220VDC Page 2 of 6 PFC-375 Series 375 Watt Power Factor Correction Module 375 VDC Output, ½ Brick Package OUTPUT SPECIFICATIONS Output Voltage MINIMUM TYPICAL MAXIMUM 370 375 Output Over Voltage Protection Output Current 0 Output Current Limit NONE Efficiency 94% Output Ripple Vaux Output Voltage (OPTION-A) UNITS CONDITIONS 380 Vdc Vin = 115VAC, Tc = 25°C 415 Vdc Non-shutdown Vmax. 1.0 ADC % 13 12.0 CONTROL SPECIFICATIONS 12.5 MINIMUM 18.0 TYPICAL V p-p Vin = 115VAC, f=60Hz Vdc Vaux Load = _________ MAXIMUM UNITS LD ENA Threshold (Vout rising) 320 360 Vdc LD ENA threshold (Vout falling) 205 235 Vdc LD ENA Logic Low Current 20 mA LD ENA Logic Low Voltage 0.5 Vdc ISOLATION SPECIFICATIONS MINIMUM Input-to-Output Isolation TYPICAL MAXIMUM Non-isolated UNITS 2500 Vdc Output-to-Case Isolation 2500 Vdc THERMAL/ MECHANICAL SPECIFICATIONS TBD pF TYPICAL MAXIMUM Thermal Shutdown Temperature 105 110 Thermal Shutdown Restart Temperature Thermal Resistance, Case to Ambient Size Weight Astrodyne Corp. 1-800-823-8082 MINIMUM CONDITIONS Vdc Input-to-Case Isolation Circuit-to-Case Capacitance CONDITIONS UNITS CONDITIONS °C Baseplate temperature 85 °C Baseplate temperature 6.6 °C/W Natural Convection in Free Air, No Heatsink, Tc = 100°C inch 1/2 Brick 2.40 x 2.30 x 0.50 4.2 PFC-375 Datasheet 05-02-12 oz. Page 3 of 6 PFC-375 Series 375 Watt Power Factor Correction Module 375 VDC Output, ½ Brick Package EMC COMPLIANCE EXTERNAL FILTER MIL-STD-461E TBD RTCA DO-160E TBD RELIABILITY MTBF Prediction Astrodyne Corp. 1-800-823-8082 MINIMUM TYPICAL COMPLIANCE MAXIMUM 2.0 PFC-375 Datasheet 05-02-12 UNITS CONDITIONS M hrs MIL-217F GB 25°C Page 4 of 6 PFC-375 Series 375 Watt Power Factor Correction Module 375 VDC Output, ½ Brick Package Pin Function/Description LD ENA AC1, AC2 These are the AC input terminals. The input should be connected to a suitable filter such as the F250-6 in order for the PFC module to perform properly and to comply with applicable EMI/EMC performance standards. A standard filter for the PFC-375 is under development. A suitable fuse and inrush limiting thermistor should be connected in series with the input as well. +Out This is the positive output terminal. It should be connected to the positive terminal of the bulk capacitor. The 375 VDC output will appear here with respect to the – Out terminal. The hold-up capacitor value ranges are provided in the specifications. This terminal provides logic control to downstream DC/DC converters. The LD ENA signal will be an active low signal until the PFC output voltage reaches a specified value after the application of input voltage. It will switch logic state to open collector upon the PFC output reaching 340 Vdc. If AC power is lost or removed, the LD ENA will return to the low state when the PFC output drops to 220 Vdc. For most RO DC-DC products, it is not necessary to use the LD ENA terminal. -Out This is the PFC negative output terminal. It should be connected directly to the negative terminal of the hold up capacitor. The hold-up capacitor must be located in close proximity to the PFC output terminals. Application Diagram The connection diagram below shows proper connections of the PFC-375 module to a typical application circuit including fuse, filter, bulk capacitor and inrush limiting thermistor. Figure 1 – Typical Application Circuit Additional applications information is available to assist in the selection of the external component Astrodyne Corp. 1-800-823-8082 PFC-375 Datasheet 05-02-12 Page 5 of 6 PFC-375 Series 375 Watt Power Factor Correction Module 375 VDC Output, ½ Brick Package Astrodyne Corp. 1-800-823-8082 PFC-375 Datasheet 05-02-12 Page 6 of 6