PET2000-12-074xA is a 2000 Watt AC to DC, power-factor corrected (PFC) power supply that converts standard AC power into a main output of +12 VDC. PET2000-12-074xA utilizes full digital control architecture for greater efficiency, control and functionality. This power supply meets international safety standards and displays the CE-Mark for the European Low Voltage Directive (LVD). * Best-in-class, 80 PLUS Certified "Platinum" Efficiency * Auto-Selected Input Voltage Ranges: 90 - 140 VAC, 180 - 264 VAC * AC Input with Power Factor Correction * 2000 W Continuous Output Power Capability * Always-On 12 V Standby Output * Hot-Plug Capable * Parallel Operation with Active Current Sharing * Full Digital Controls for Improved Performance * High Density Design: 42.1 W/in3 * Small Form Factor: 265 x 73.5 x 40 mm (10.43 x 2.89 x 1.57 in) * Power Management Bus Communication Protocol for Control, Programming and Monitoring * Status LED with Fault Signaling * * * Networking Switches Servers & Routers Telecommunications PET2000-12-074xA 2 Product Family Power Level PET Front-Ends 2000 W Dash V1 Output Dash 12 V Width Airflow Input AC Inlet1 74 mm N: Normal R: Reverse A: AC Blank: C14 C: C16 A: Saf-D-Grid(R) The PET2000-12-074xA AC/DC power supply is a fully DSP controlled, highly efficient front-end power supply. It incorporates resonance-soft-switching technology to reduce component stresses, providing increased system reliability and very high efficiency. With a wide input operational voltage range the PET2000-12-074xA maximizes power availability in demanding server, network, and other high availability applications. The supply is fan cooled and ideally suited for integration with a matching airflow path. The PFC stage is digitally controlled using a state-of-the-art digital signal processing algorithm to guarantee best efficiency and unity power factor over a wide operating range. The DC/DC stage uses soft switching resonant techniques in conjunction with synchronous rectification. An active OR-ing device on the output ensures no reverse load current and renders the supply ideally suited for operation in redundant power systems. The always-on standby output provides power to external power distribution and management controllers. It is protected with an active OR-ing device for maximum reliability. Status information is provided with a front-panel LED. In addition, the power supply can be controlled and the fan speed set via the I2C bus. The I2C bus allows full monitoring of the supply, including input and output voltage, current, power, and inside temperatures. Cooling is managed by a fan controlled by the DSP controller. The fan speed is adjusted automatically depending on the actual power demand and supply temperature and can be overridden through the I2C bus. L V1 DC Filter Curr ent limit PFC DC PWM N PE VSB GND Aux Converter EEPROM PWM Fan Digital Primary Controls Communication Bus V1_SENSE V1_SENSE_RTN Digital Secondary Controls ISHARE I2C A2..0 Logic Signals Figure 1. PET2000-12-074xA Block Diagram Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect long-term reliability and cause permanent damage to the supply. PARAMETER CONDITIONS / DESCRIPTION Vi maxc Continuous Maximum Input 1 MIN MAX UNITS 264 VAC C14 = IEC 60320-C14 type, C16 = IEC 60320-C16 type, Saf-D-Grid(R) = Anderson Saf-D-Grid(R) tech.support@psbel.com PET2000-12-074xA 3 General Condition: TA = 0... 55 C, unless otherwise noted. PARAMETER Vi nom Nominal Input Voltage Vi DESCRIPTION / CONDITION MIN NOM MAX UNIT Rated Voltage High Line (Vi nom HL) 200 230 240 VAC Rated Voltage Low Line (Vi nom LL) 100 115 127 VAC Normal operating (Vi min HL to Vi max HL), High Line 180 264 VAC Normal operating (Vi min LL to Vi max LL), Low Line 90 140 VAC Input Voltage Ranges Ii max Maximum Input Current Ii inrush Inrush Current Limitation fi Vi =100 VAC, I1 = 83 A, ISB = 5 A 13 Vi = 200 VAC, I1 =167 A, ISB = 5 A 12 Vi = 200 VAC, I1 = 145 A, ISB = 5 A 10 Vi = 220 VAC, I1 = 158 A, ISB = 5 A 10 Vi = 230 VAC, I1 = 167 A, ISB = 5 A 10 Vi min to Vi max, TNTC = 25C, 5 ms 10 Input Frequency PF Power Factor 63 ARMS Ap 47 50/60 Vi = 230 VAC, 10% load 0.8 0.880 W/VA Hz Vi = 230 VAC, 20% load 0.9 0.950 W/VA Vi = 230 VAC, 50% load 0.9 0.997 W/VA Vi = 230 VAC, 100% load 0.95 0.999 W/VA THD Total Harmonic Distortion TBD Vi on Turn-on Input Voltage2 Ramping up 87 Vi off Turn-off Input Voltage2 Ramping down 82 Vi = 230 VAC, 10% load 90 91.6 % Vi = 230 VAC, 20% load 91 93.8 % Vi = 230 VAC, 50% load 94 94.4 % Vi = 230 VAC, 100% load 91 92.8 % Vi = 230 VAC, 50% load, 0 18 ms Vi = 230 VAC, 100% load, 0 9 ms Vi = 90 to 264 VAC, 0 to 100% load 70 ms Efficiency3 TV1 holdup Hold-up Time V1 TVSB holdup Hold-up Time VSB TBD % 90 VAC 87 VAC 4.1 INPUT CONNECTOR PET2000-12-074NA power supply is available in 3 different input connector configurations. The versions with IEC 60320-C14 and IEC 60320-C16 have a limited current of 10 A for areas outside North America, in addition the IEC 60320-C14 has a limited component temperature of 70C. The Anderson Saf-D-Grid(R) has no limitation with respect to both current and temperature. The PET2000-12-074NA power supply is available with IEC 60320-C14. Below table shows the maximum rated operating conditions for the different input connector options. The applied operating condition must remain within these conditions to allow safety compliant operation. See also 10.3 MAXIMUM OUTPUT POWER VERSUS INLET TEMPERATURE FOR SAFETY COMPLIANCY for detailed derating curves. 2 3 The Front-End is provided with a minimum hysteresis of 3 V during turn-on and turn-off within the ranges Efficiency measured without fan power per EPA server guidelines Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 4 TYPE INPUT CONNECTOR REGION APPLIED RATED MAINS AC VOLTAGE4 MAX I 5 MAXIMUM DERATED I1 AT MAXIMUM TA 100 to 127 VAC 83.3 A 50 A at TA = 55C 200 to 240 VAC 167 A 100 A at TA = 55C 100 to 127 VAC 67 A / 83.3 A for BSMI 50 A at TA = 55C 200 to 220 VAC 145 A 100 A at TA = 55C 220 to 230 VAC 158 A 100 A at TA = 55C 230 to 240 VAC 167 A 100 A at TA = 55C 100 to 127 VAC 83.3 A 50 A at TA = 70C 200 to 240 VAC 167 A 100 A at TA = 70C 100 to 127 VAC 67 A / 83.3 A for BSMI 17.5 A at TA = 65C 200 to 220 VAC 145 A 32.5 A at TA = 65C 220 to 230 VAC 158 A 40 A at TA = 65C 230 to 240 VAC 167 A 43 A at TA = 65C 100 to 127 VAC 83.3 A 50 A at TA = 70C 200 to 240 VAC 167 A 100 A at TA = 70C 100 to 127 VAC 67 A / 83.3 A for BSMI 40 A at TA = 70C 200 to 220 VAC 145 A 87 A at TA = 70C 220 to 230 VAC 158 A 95 A at TA = 70C 230 to 240 VAC 167 A 100 A at TA = 70C 100 to 127 VAC 83.3 A 50 A at TA = 70C 200 to 240 VAC 167 A 100 A at TA = 70C North America PET2000-12-074RA IEC 60320-C14 Other than North America North America PET2000-12-074NA IEC 60320-C14 Other than North America North America PET2000-12-074NAC IEC 60320-C16 Other than North America PET2000-12-074NAA Anderson Saf-D-Grid(R) All 4.2 INPUT FUSE Time-lag 16 A input fuse (5 x 20 mm) in series with the L-line inside the power supply protects against severe defects. The fuse is not accessible from the outside and is therefore not a serviceable part. 4.3 INRUSH CURRENT The AC-DC power supply exhibits an X-capacitance of only 5.9 F, resulting in a low and short peak current, when the supply is connected to the mains. The internal bulk capacitor will be charged through an NTC which will limit the inrush current. NOTE: Do not repeat plug-in / out operations within a short time, or else the internal in-rush current limiting device (NTC) may not sufficiently cool down and excessive inrush current or component failure(s) may result. 4.4 INPUT UNDER-VOLTAGE If the sinusoidal input voltage stays below the input undervoltage lockout threshold Vi on, the supply will be inhibited. Once the input voltage returns within the normal operating range, the supply will return to normal operation again. 4 Nominal grid voltage, does not include typical fluctuations of 10%; e.g. listed range 230-240 VAC allows operation at 230 VAC -10% to 240 VAC +10%, so 207 ... 264 VAC actual voltage to account for grid fluctuations 5 Maximum Input current for PET2000-12-074RA at TA = 40C and for PET2000-12-074NAx at TA = 55C tech.support@psbel.com PET2000-12-074xA 5 4.5 POWER FACTOR CORRECTION Power factor correction (PFC) is achieved by controlling the input current waveform synchronously with the input voltage. A fully digital controller is implemented giving outstanding PFC results over a wide input voltage and load ranges. The input current will follow the shape of the input voltage. If for instance the input voltage has a trapezoidal waveform, then the current will also show a trapezoidal waveform. 4.6 EFFICIENCY High efficiency (see Figure 2) is achieved by using state-of-the-art silicon power devices in conjunction with soft-transition topologies minimizing switching losses and a full digital control scheme. Synchronous rectifiers on the output reduce the losses in the high current output path. The speed of the fan is digitally controlled to keep all components at an optimal operating temperature regardless of the ambient temperature and load conditions. Figure 2. Efficiency vs. Load current (ratio metric loading) Figure 3. Power factor vs. Load current Figure 4. Inrush current, Vi = 230Vac, 90 CH2: Vi (200V/div), CH3: Ii (5A/div) Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 6 5.1 MAIN OUTPUT V1 General Condition: TA = 0...40 C (PET2000-12-074RA), TA = 0...55 C (PET2000-12-074NA), Vi = 230 VAC unless otherwise noted. PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT V1 nom Nominal Output Voltage V1 set Output Setpoint Accuracy dV1 tot Static Regulation P1 nom Nominal Output Power6 P1 peak Peak Output Power6 I1 nom I1 nom Output Current red I1 peak I1 peak red Peak Output Current7 Vi min LL to Vi max HL, 0 to 100% I1 nom W Vi min HL to Vi max HL 2100 W Vi min LL to Vi max LL 1320 W Vi min HL to Vi max HL 0 Vi min LL to Vi max LL Vi min HL to Vi max HL -83 -24 Line Regulation Vi min HL to Vi max HL, 0.5 I1 nom Thermal Drift 0.5 I1 nom, TA = 0 ... 55C dI1 share Current Sharing Difference between individual I1, 1 ... 8 power supplies in parallel VISHARE Current Share Bus Voltage VISHARE at 167A VISHARE Current Share Bus Voltage I1 peak I1 = 50% I1 nom, I1 = 5 ... 100% I1 nom, Cext = 0 mF I1 = 10% I1 nom, I1 = 0 ... 10% I1 nom, Cext = 0 mF dI1/dt = 1A/s, recovery within 1% of V1 nom trec Recovery Time %V1 nom W dV1 line dV1 lt %V1 nom +1 1000 dV1 temp Load Transient Response +0.5 -1 2000 Load Regulation dV1 lt -0.5 Vi min LL to Vi max LL dV1 load Output Ripple Voltage8 VDC Vi min HL to Vi max HL Vi min LL to Vi max LL Vi min LL to Vi max HL, 0 to 75% I1 nom, Cext = 0 mF Vi min LL to Vi max HL, 75 to 100% I1 nom, Cext = 0 mF Vi min LL to Vi max HL, 0 to 100% I1 nom, Cext 1 mF/Low ESR 0 to 100% I1 nom V1 pp 12.0 0.5 I1 nom, TA = 25C V1 dyn Dynamic Load Regulation I1 = 60% I1 nom, I1 = 5 ... 167 A, f = 50 ... 5000 Hz, Duty cycle = 10 ... 90%, Cext = 2 ... 30 mF tV1 rise Output Voltage Rise Time V1 = 10...90% V1 nom, Cext < 10 mF tV1 ovr sh Output Turn-on Overshoot 0 to 100% I1 nom dV1 sense Remote Sense Compensation for cable drop, 0 to 100% I1 nom CV1 load Capacitive Loading 167 ADC 0 83 ADC 0 175 ADC 0 110 ADC 120 mVpp 150 mVpp 120 mVpp -110 -138 mV 0 24 -0.4 -6 11.4 1 0 mV mV/C +6 ADC 8 VDC 9.14 VDC 0.35 0.6 VDC 0.35 0.6 VDC 0.5 1 ms 12.6 V 30 ms 0.6 V 0.25 V 30 mF 6 See also chapter TEMPERATURE AND FAN CONTROL Peak combined power for all outputs must not exceed 2100 W; maximum of peak power duration is 20 seconds without asserting the SMBAlert signal 8 Measured with a 10 uF low ESR capacitor in parallel with a 0.1 uF ceramic capacitor at the point of measurement 7 tech.support@psbel.com PET2000-12-074xA 7 5.2 STANBY OUTPUT VSB General Condition: TA = 0...40 C (PET2000-12-074RA), TA = 0...55 C (PET2000-12-074NA), Vi = 230 VAC unless otherwise noted. PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT VSB nom Nominal Output Voltage VSB set Output Setpoint Accuracy dVSB tot Total Regulation 12.1 ISB = 0 A, TA = 25C Vi min LL to Vi max HL, 0 to 100% ISB nom PSB nom Nominal Output Power Vi min LL to Vi max HL PSB peak Peak Output Power8 Vi min LL to Vi max HL PET2000-12-074RA PET2000-12-074NA PET2000-12-074RA PET2000-12-074NA PET2000-12-074RA PET2000-12-074NA PET2000-12-074RA PET2000-12-074NA ISB nom Output Current Vi min LL to Vi max HL ISB peak Peak Output Current9 Vi min LL to Vi max HL VSB pp Output Ripple Voltage7 Vi min LL to Vi max HL, 0 to 100% ISB nom, Cext = 0 mF dVSB load PET2000-12-074RA PET2000-12-074NA Load Regulation 0 to 100% ISB nom dVSB line Line Regulation Vi min HL to Vi max HL, ISB nom = 0 A dVSB temp Thermal Drift ISB = 0 A dISB share Current Sharing Deviation from ISB tot / N, ISB = 0.5 ISB nom Load Transient Response ISB = 50% ISB nom, ISB = 5 ... 100% ISB nom, dISB/dt = 1A/s, recovery within 1% of VSB nom VSB dyn trec Recovery Time VSB dyn Dynamic Load Regulation tVSB rise Output Voltage Rise Time VSB = 10...90% VSB nom, Cext < 1 mF tVSB ovr sh Output Turn-on Overshoot 0 to 100% ISB nom CVSB load Capacitive Loading 9 -1 +1 %VSBnom -5 +1 %VSBnom 36 60 36 60 W W W 3 5 3.3 5.3 0 0 ADC ADC 120 mVpp -144 -290 -240 -430 -330 -570 mV mV -24 0 24 mV -0.5 ISB = 1A, ISB = 0 ... ISB nom, f = 50 ... 5000 Hz, Duty cycle = 10 ... 90%, Cext = 0 ... 5 mF Figure 5. Turn-On AC Line 230VAC, full load (200ms/div) CH1: Vin (400V/div) CH2: PWOK_H (5V/div) CH3: V1 (2V/div) CH4: VSB (2V/div) VDC -1 ADC 0.2 0.3 VDC 1 2 ms 12.6 V 11.4 1 mV/C +1 2 0 5 ms 0.6 V 3100 F Figure 6. Rise time V1 at 230VAC, full load (2ms/div) CH3: V1 (2V/div) In single power supply configuration Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 8 Figure 7. Rise time VSB at 230VAC, full load (2ms/div) CH4: VSB (2V/div) Figure 8. Turn-Off AC Line 230VAC, full load (20ms/div) CH1: Vin (400V/div) CH2: PWOK_H (5V/div) CH3: V1 (2V/div) CH4: VSB (2V/div) Figure 9. Turn-Off AC Line 230VAC, half load (20ms/div) CH1: Vin (400V/div) CH2: PWOK_H (5V/div) CH3: V1 (2V/div) CH4: VSB (2V/div) Figure 10. Short circuit on V1 (10ms/div) CH3: V1 (2V/div) CH4: I1 (100A/div) Figure 11. Load transient V1, 83 to 167A (500s/div) CH3: V1 (200mV/div) CH4: I1 (50A/div) Figure 12. Load transient V1, 167 to 83A (500s/div) CH3: V1 (200mV/div) CH4: I1 (50A/div) 5.3 OUTPUT GROUND / CHASSIS CONNECTION The output return path serves as power and signal ground. All output voltages and signals are referenced to these pins. To prevent a shift in signal and voltage levels due to ground wiring voltage drop a low impedance ground plane should be used as shown in Figure 13. Alternatively, separated ground signals can be used as shown in Figure 14. In this case the two ground planes should be connected together at the power supplies ground pins. tech.support@psbel.com PET2000-12-074xA 9 NOTE: Within the power supply the output GND pins are connected to the Chassis, which in turn is connected to the Protective Earth terminal on the AC inlet. Therefore, it is not possible to set the potential of the output return (GND) to any other than Protective Earth potential. Figure 13. Common low impedance ground plane Figure 14. Separated power and signal ground PARAMETER F Input fuse (L) V1 OV OV Threshold V1 tV1 OV OV Trip Time V1 VSB OV OV Threshold VSB tVSB OV OV Trip Time VSB I1 OC Slow tV1 OC Slow IV1 OC Fast tV1 OC Fast OC Limit V1 OC Trip time V1 Fast OC Limit V1 DESCRIPTION / CONDITION MIN 13.3 Over Voltage V1 Protection, Latch-off Type Over Voltage V1 Protection, Automatic retry each 1s 13.3 13.9 13.9 UNIT A 14.5 VDC 1 ms 14.5 VDC 1 ms Over Current Limitation, Latch-off, Vi min HL to Vi max HL 169 175 ADC Over Current Limitation, Latch-off, Vi min LL to Vi max LL 85 88 ADC Over Current Limitation, Latch-off time 20 Fast Over Current Limit., Latch-off, Vi min HL to Vi max HL 176 180 ADC Fast Over Current Limit., Latch-off, Vi min LL to Vi max LL 110 115 ADC 50 Fast OC Trip time V1 Fast Over Current Limitation, Latch-off time Max Short Circuit Current V1 V1 < 3 V tV1 SC Short Circuit Regulation Time V1 < 3 V, time until I1 is limited to < I1 sc ISB OC OC Limit VSB Over Current Limitation, Constant-Current Type OC Trip time VSB Over Current Limit., time until ISB is limited to ISB OC Over Temperature See chapter 10.2 TSD MAX 16 I1 SC tVSB OC NOM Not use accessible, time-lag (T) 5.2 s 55 60 ms 180 A 2 ms 7.5 A 1 ms C Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 10 6.1 OVERVOLTAGE PROTECTION PET2000-12-074xA front-end provides a fixed threshold overvoltage (OV) protection implemented with a HW comparator for both the main and the standby output. Once an OV condition has been triggered on the main output, the supply will shut down and latch the fault condition. The latch can be unlocked by disconnecting the supply from the AC mains or by toggling the PSON_L input. The standby output will continuously try to restart with a 1 s interval after OV condition has occurred. 6.2 UNDERVOLTAGE DETECTION Both main and standby outputs are monitored. LED and PWOK_H pin signal if the output voltage exceeds 5% of its nominal voltage. The main output will latch off if the main output voltage V1 falls below 10 V (typically in an overload condition) for more than 55 ms. The latch can be unlocked by disconnecting the supply from the AC mains or by toggling the PSON_L input. If the standby output leaves its regulation bandwidth for more than 2 ms then the main output is disabled to protect the system. 6.3 CURRENT LIMITATION MAIN OUTPUT The main output exhibits a substantially rectangular output characteristic controlled by a software feedback loop. If output current exceeds IV1 OC Fast it will reduce output voltage in order to keep output current at IV1 OC Fast. If the output voltage drops below ~10.0 VDC for more than 55 ms, the output will latch off (standby remains on), see also Undervoltage Detection. Figure 15. Current Limitation on V1 at Vi = 90 ... 140 VAC Figure 16 .Current Limitation on V1 at Vi = 180 ... 264 VAC A second SW controlled current limit will latch off the main output if the power supply is operated for long duration in its peak current capability region. This protection trips as soon as the output current exceeds I1 OC Slow for a duration of more than 20 s. The third current limitation implemented as a fast hardware circuit will immediately switch off the main output if the output current increases beyond the peak current trip point, occurring mainly if a short circuit is applied to the output voltage. The supply will re-start 4 ms later with a soft start, if the short circuit persists (V1 < 10.0 V for >55 ms) the output will latch off; otherwise it continuous to operate. The latch can be unlocked by disconnecting the supply from the AC mains or by toggling the PSON_L input. The main output current limitation thresholds for I1 OC Slow and I1 OC Fast depend on the actual input voltage range applied to the power supply. In addition, the threshold for I1 OC Slow is reduced when ambient temperature exceeds 55C, see Figure 38 for PET2000-12-074RA and Figure 46 for PET2000-12-074NA. STANDBY OUTPUT The standby output exhibits a substantially rectangular output characteristic down to 0 V (no hiccup mode / latch off). The current limitation of the standby output is independent of the AC input voltage. Running in current limitation causes the output voltage to fall, this will trigger under voltage protection and disables the main output, see also Undervoltage Detection. tech.support@psbel.com PET2000-12-074xA 11 PET2000-12-074NA PET2000-12-074RA Figure 17. Current Limitation on VSB The power supply operating parameters can be accessed through I2C interface. For more details refer to chapter I2C / POWER MANAGEMENT BUS COMMUNICATION and document URP.00234 (PET Front-End Power Management Bus Communication Manual). PARAMETER DESCRIPTION / CONDITION Vi mon Input RMS Voltage Vi min LL Vi Vi max HL Ii mon Input RMS Current Pi mon True Input Power V1 mon V1 Voltage I1 mon V1 Current P1 nom MIN MAX UNIT +3 VAC Ii > 6.7 Arms -3 +3 % Ii 6.7 Arms -0.2 +0.2 Arms Pi > 500 W -4 +4 % 50 W < Pi 500 W -20 +20 W -0.1 +0.1 VDC I1 > 50 A V1 Output Power NOM -3 5 A < I1 50 A -1 +1 % -0.5 +0.5 ADC Pi > 1000 W -1 +1 % 50 W < Pi 1000 W -10 +10 W VSB mon VSB Voltage -0.1 +0.1 VDC ISB mon VSB Current -0.1 +0.1 ADC TA mon Inlet Temperature -2 +2 C TA min TA TA max Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 12 8.1 ELECTRICAL CHARACTERISTICS PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT PSON_H / HOTSTANDBYEN_H PSON_L: Main output enabled VIL Input Low Level Voltage VIH Input High Level Voltage IIL,H Maximum Input Sink or Source Current Rpull up Internal Pull up Resistor to internal 3.3 V -0.2 0.8 V HOTSTANDBYEN_H: Hot Standby mode allowed 2 3.5 V VI = -0.2 V to +3.5 V -1 1 mA HOTSTANDBYEN_H: Hot Standby mode not allowed PSON_L: Main output disabled RLOW RHIGH 10 Maximum external Pull down Resistance to GND to obtain Low Level Minimum external Pull down Resistance to GND to obtain High Level k 1 50 k k PWOK_H VOL Output Low Level Voltage V1 or VSB out of regulation, VIsink < 4 mA 0 VOH Output High Level Voltage V1 and VSB in regulation, Isource < 0.5 mA 2.4 Rpull up IOL Internal Pull up Resistor to internal 3.3 V Maximum Sink Current 0.4 3.5 1 VO < 0.4 V V V k 4 mA 8.2 SENSE INPUTS The main output has sense lines implemented to compensate for voltage drop on load wires in both positive and negative path. The maximum allowed voltage drop is 200 mV on the positive rail and 50 mV on the GND rail. With open sense inputs the main output voltage will rise by 270 mV. Therefore, if not used, these inputs should be connected to the power output and GND at the power supply connector. The sense inputs are protected against short circuit. In this case the power supply will shut down. 8.3 CURRENT SHARE The PET front-ends have an active current share scheme implemented for V1. All the ISHARE current share pins need to be interconnected in order to activate the sharing function. If a supply has an internal fault or is not turned on, it will disconnect its ISHARE pin from the share bus. This will prevent dragging the output down (or up) in such cases. The current share function uses an analog bus to transmit and receive current share information. The controller implements a Master/Slave current share function. The power supply providing the largest current among the group is automatically the Master. The other supplies will operate as Slaves and increase their output current to a value close to the Master by slightly increasing their output voltage. The voltage increase is limited to +250 mV. The standby output uses a passive current share method (droop output voltage characteristic). 8.4 PSON_L INPUT The PSON_L is an internally pulled-up (3.3 V) input signal to enable/disable the main output V1 of the front-end. With low level input the main output is enabled. This active-low pin is also used to clear any latched fault condition. The PSON_L can be either controlled by an open collector device or by a voltage source. tech.support@psbel.com PET2000-12-074xA 13 PSU 1 PDU PSU 1 PDU 3.3V 3.3V PSON_L PSON_L PSU 2 PSU 2 3.3V 3.3V PSON_L PSON_L Figure 18. PSON_L connection 8.5 PWOK_H OUTPUT The PWOK_H is an open drain output with an internal pull-up to 3.3 V indicating whether both VSB and V1 outputs are within regulation. This pin is active-high. An external pull down resistor ensures low level when there is no power supply seated. When combining PWOK_H outputs of several power supplies, circuits as shown in Figure 19 should be used. PSU PDU 3.3V PWOK_H >10k PSU 1 PDU PSU 1 PDU 3.3V 3.3V PWOK_H 3.3V 1k PWOK_H PSU 2 PSU 2 3.3V 3.3V PWOK_H >10k PWOK_H Figure 19. PWOK_H connection 8.6 HOT-STANDBY IN-/OUTPUT The hot-standby operation is an operating mode allowing to further increase efficiency at light load conditions in a redundant power supply system. Under specific conditions one of the power supplies is allowed to disable its DC/DC stage. This will save the power losses associated with this power supply and at the same time the other power supply will operate in a load range having a better efficiency. In order to enable the hot standby operation, the HOTSTANDBYEN_H and the ISHARE pins need to be interconnected between the power supplies. A power supply will only be allowed to enter the hot-standby mode, when the HOTSTANDBYEN_H pin is high, the load current is low, see Figure 20, and the supply was allowed to enter the hotstandby mode by the system controller via the appropriate I2C command (by default disabled). The system controller needs to ensure that only one of the power supplies is allowed to enter the hot-standby mode. If a power supply is in a fault condition, it will pull low its active-high HOTSTANDBYEN_H pin which indicates to the other power supply that it is not allowed to enter the hot-standby mode or that it needs to return to normal operation should it already have been in the hot-standby mode. NOTE: The system controller needs to ensure that only one of the power supplies is allowed to enter the hot-standby mode. Figure 21 shows the achievable power loss savings when using the hot-standby mode operation. A total power loss reduction of approx. 10 W is achievable. Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 14 2 PSU on 1 PSU on 37.5A 80A Total System Current 167A Figure 20. Hot-standby enable/disable current thresholds Figure 21. PSU power losses with/without hot-standby mode PSU 1 PSU 2 V1 V1 VSB VSB CS CS HOTSTANDBYEN_H HOTSTANDBYEN_H Figure 22. Recommended hot-standby configuration 8.7 PRESENT_L OUTPUT The PRESENT_L pin is wired through a 100 Ohms resistor to internal GND within the power supply. This pin does indicate that there is a power supply present in this system slot. An external pull-up resistor has to be added within the application. Current into PRESENT_L should not exceed 5 mA to guarantee a low level voltage if power supply is seated. PSU PDU Vext PRESENT_L 100 Figure 23. PRESENT_L connection 8.8 SIGNAL TIMING AC Input AC Input tAC drop2 VSB tV1 rise tAC VSB V1 VSB tV1 holdup tVSB rise tVSB V1 del V1 tV1 off tAC drop1 PSON_L PSON_L PWOK_H tAC V1 tPWOK_H holdup PWOK_H tPWOK_H del Figure 24. AC turn-on timing tPWOK_H warn Figure 25. AC short dips tech.support@psbel.com PET2000-12-074xA 15 AC Input VSB AC Input tVSB holdup tVSB off VSB tPSON_L V1 on tV1 holdup tV1 off V1 tPWOK_H low tPWOK_H del PWOK_H Figure 26. AC long dips tPWOK_H warn Figure 27. PSON_L turn-on/off timing DESCRIPTION / CONDITION PARAMETER tAC VSB AC Line to 90% VSB tAC V1 AC Line to 90% V1 PSON_L = Low VSB to V1 delay PSON_L = Low tVSB V1 del tV1 off PSON_L tPWOK_H warn PWOK_H tV1 rise V1 tPWOK_H holdup PSON_L tPSON_L PWOK_H tPSON V1 off MIN NOM 1.5 50 150 MAX UNIT 1.5 s 4 10 s 1000 ms 0.5 I1 nom, ISB nom 17 ms 0.7 I1 nom, ISB nom 13 ms tV1 rise V1 rise time See chapter OUTPUT tVSB rise VSB rise time See chapter OUTPUT tAC drop1 AC drop without V1 leaving regulation I1 nom, ISB nom 5 ms tAC drop2 AC drop without VSB leaving regulation I1 nom, ISB nom 70 ms tV1 holdup Loss of AC to V1 leaving regulation See chapter INPUT See chapter INPUT 200 ms tVSB holdup Loss of AC to VSB leaving regulation tPWOK_H del Outputs in regulation to PWOK_H asserted 100 tPWOK_H warn Warning time from de-assertion of PWOK_H to V1 leaving regulation 0.15 ms 10 ms tPWOK_H holdup Vi nom HL, I1 nom, ISB nom Loss of AC to PWOK_H de-asserted tPWOK_H low Time PWOK_H is kept low after being de-asserted tPSON_L V1 on Delay PSON_L active to V1 in regulation tPSON_L V1 off Delay PSON_L de-asserted to V1 disabled 150 100 Cext = 0 mF ms 5 10 20 ms 2 3 4 ms Delay PSON_L de-asserted to PWOK_H de-asserted 1 2 ms tV1 off Time V1 is kept off after leaving regulation 1 s tVSB off Time VSB is kept off after leaving regulation 1 s tPSON_L PWOK_H 10 At repeated ON-OFF cycles the start-up times may increase by 1s Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 16 8.9 LED INDICATOR The front-end has one front LED showing the status of the supply. The LED is bi-colored: green and amber, and indicates AC and DC power presence and warning or fault conditions. Table 1 lists the different LED status. OPERATING CONDITION 11 LED SIGNALING No AC or AC Line in UV condition, VSB not present from paralleled power supplies Off PSON_L High Blinking Green 1 Hz Hot-Standby Mode No AC or AC Line in UV condition, VSB present from paralleled power supplies V1 or VSB out of regulation Over temperature shutdown Solid Amber Output over voltage shutdown (V1 or VSB) Output over current shutdown (V1 or VSB) Fan error (>15%) Over temperature warning Blinking Amber 1 Hz Minor fan regulation error (>5%, <15%) Firmware boot loading in process Blinking Green 2 Hz Outputs V1 and VSB in regulation Solid Green Table 1. LED Status The PET front-end is a communication Slave device only; it never initiates messages on the I2C / SMBus by itself. The communication bus voltage and timing is defined in Table 2 and further characterized through: * * * * * * 3.3V The SDA/SCL IOs use 3.3 V logic levels External pull-up resistors on SDA/SCL required for correct signal edges Full SMBus clock speed of 100 kbps Clock stretching limited to 1 ms SCL low time-out of >25 ms with recovery within 10 ms Recognizes any time Start/Stop bus conditions 3.3V RX TX_EN TX 10k Rpull-up SDA/SCL DSP or EEPROM Figure 28. Physical layer of communication interface Communication to the DSP or the EEPROM will be possible as long as the input AC voltage is provided. If no AC is present, communication to the unit is possible as long as it is connected to a life VSB output (provided e.g. by the redundant unit). If only V1 is provided, communication is not possible. 11 The order of the criteria in the table corresponds to the testing precedence in the controller tech.support@psbel.com PET2000-12-074xA PARAMETER 17 DESCRIPTION CONDITION MIN MAX UNIT -0.5 1.0 V 3.5 V SCL / SDA ViL Input low voltage ViH Input high voltage 2.3 Vhys Input hysteresis 0.15 VoL Output low voltage 3 mA sink current V 0 0.4 V 20+0.1Cb1 300 ns 20+0.1Cb1 250 ns -10 10 A 50 pF 100 kHz 1000 ns / Cb1 tr Rise time for SDA and SCL tof Output fall time ViHmin ViLmax 10 pF < Cb1 < 400 pF Ii Input current SCL/SDA 0.1 VDD < Vi < 0.9 VDD Ci Internal Capacitance for each SCL/SDA fSCL SCL clock frequency Rpull-up External pull-up resistor fSCL 100 kHz tHDSTA Hold time (repeated) START fSCL 100 kHz 4.0 s tLOW Low period of the SCL clock fSCL 100 kHz 4.7 s tHIGH High period of the SCL clock fSCL 100 kHz 4.0 s tSUSTA Setup time for a repeated START fSCL 100 kHz 4.7 s tHDDAT Data hold time fSCL 100 kHz 0 tSUDAT Data setup time fSCL 100 kHz 250 ns tSUSTO Setup time for STOP condition fSCL 100 kHz 4.0 s tBUF Bus free time between STOP and START fSCL 100 kHz 5 ms 1 0 s 3.45 Cb = Capacitance of bus line in pF, typically in the range of 10...400 pF Table 2. I2C / SMBus Specification tof tLOW tHIGH tLOW tr SCL tSUSTA tHDSTA tHDDAT tSUDAT tSUSTO tBUF SDA Figure 29. I2C / SMBus Timing ADDRESS SELECTION The address for I2C communication can be configured by pulling address input pins A2, A1 and A0 either to GND (Logic Low) or leave them open (Logic High). An internal pull up resistor will cause the A2 / A1 / A0 pin to be in High Level if left open. A fixed addressing offset exists between the Controller and the EEPROM. Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 18 A2 A1 A0 0 0 0 0 0 1 0 1 0 1 1 0 1 0 1 1 1 1 I2C Address12 Controller EEPROM 0 1 0 1 0 1 0xB0 0xA0 0xB2 0xB4 0xA2 0xA4 0xB6 0xB8 0xA6 0xA8 0xBA 0xAA 0xBC 0xBE 0xAC 0xAE Table 3. Address and protocol encoding 9.1 SMBALERT_L OUTPUT The SMBALERT_L signal indicates that the power supply is experiencing a problem that the system agent should investigate. This is a logical OR of the Shutdown and Warning events. It is asserted (pulled Low) at Shutdown or Warning events such as reaching temperature warning/shutdown threshold of critical component, general failure, over-current, over-voltage, undervoltage or low-speed of a failed fan. This signal may also indicate the power supply is operating in an environment exceeding the specified limits. The SMBAlert signal is asserted simultaneously with the LED turning to solid amber or blinking amber. PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT 12 V SMB_ALERT_L Vext Maximum External Pull up Voltage IOH Maximum High Level Leakage Current No Failure or Warning condition, VO = 12 V VOL Output Low Level Voltage Failure or Warning condition, Isink < 4 mA Rpull up IOL Internal Pull up Resistor to internal 3.3 V Maximum Sink Current 0 10 A 0.4 V 4 mA None VO < 0.4 V PSU 1 PDU SMBALERT_L Vext PSU 2 SMBALERT_L Figure 30. SMBALERT_L connection 12 The LSB of the address byte is the R/W bit tech.support@psbel.com PET2000-12-074xA 19 9.2 CONTROLLER AND EEPROM ACCESS The controller and the EEPROM in the power supply share the same I2C bus physical layer (see Figure 31) and can be accessed under different addresses, see ADDRESS SELECTION. The SDA/SCL lines are connected directly to the controller and EEPROM which are supplied by internal 3.3 V. The EEPROM provides 256 bytes of user memory. None of the bytes are used for the operation of the power supply. A2..0 Address Selection SDA DSP SCL Protection EEPROM Figure 31. I2C Bus to DSP and EEPROM 9.3 EEPROM PROTOCOL The EEPROM follows the industry communication protocols used for this type of device. Even though page write / read commands are defined, it is recommended to use the single byte write / read commands. WRITE The write command follows the "SMBus 1.1 Write Byte Protocol". After the device address with the write bit cleared, the Two Byte Data Address is sent followed by the data byte and the STOP condition. A new START condition on the bus should only occur after 5ms of the last STOP condition to allow the EEPROM to write the data into its memory. READ The read command follows the "SMBus 1.1 Read Byte Protocol". After the device address with the write bit cleared the two byte data address is sent followed by a repeated start, the device address and the read bit set. The EEPROM will respond with the data byte at the specified location. 9.4 POWER MANAGEMENT BUS PROTOCOL The Power Management Bus is an open standard protocol that defines means of communicating with power conversion and other devices. For more information, please see the System Management Interface Forum web site at: www.powerSIG.org. Power Management Bus command codes are not register addresses. They describe a specific command to be executed. PET2000-12-074xA supply supports the following basic command structures: * Clock stretching limited to 1 ms * SCL low time-out of >25 ms with recovery within 10 ms * Recognized any time Start/Stop bus conditions Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 20 WRITE The write protocol is the SMBus 1.1 Write Byte/Word protocol. Note that the write protocol may end after the command byte or after the first data byte (Byte command) or then after sending 2 data bytes (Word command). S Address W A Data Low Byte1) A 1) Command A Data High Byte1) A P Optional In addition, Block write commands are supported with a total maximum length of 255 bytes. See PET2000-12-074xA Power Management Bus Communication Manual URP.00234 for further information. S Address W A Byte 1 Command A A Byte Count A Byte N A P READ The read protocol is the SMBus 1.1 Read Byte/Word protocol. Note that the read protocol may request a single byte or word. S Address W A S Address R 1) A Command A Data (Low) Byte A Data High Byte1) nA P Optional In addition, Block read commands are supported with a total maximum length of 255 bytes. See PET2000-12-074xA Power Management Bus Communication Manual URP.00234 for further information. S Address W A Byte Count A Command Byte 1 A A S Address R Byte N A nA P 9.5 GRAPHICAL USER INTERFACE Bel Power Solutions provides with its "I2C Utility" a Windows(R) XP/Vista/Win7 compatible graphical user interface allowing the programming and monitoring of the PET2000-12-074xA Front-End. The utility can be downloaded on: belfuse.com/power-solutions and supports both the PSMI and Power Management Bus protocols. The GUI allows automatic discovery of the units connected to the communication bus and will show them in the navigation tree. In the monitoring view the power supply can be controlled and monitored. If the GUI is used in conjunction with the YTM.00046 Evaluation Board it is also possible to control the PSON_L pin of the power supply. Refer to BCG.00809 for YTM.00046 connection and GUI configuration. tech.support@psbel.com PET2000-12-074xA 21 Figure 32. Monitoring dialog of the I2C Utility 10.1 FAN CONTROL To achieve best cooling results sufficient airflow through the supply must be ensured. Do not block or obstruct the airflow at the rear of the supply by placing large objects directly at the output connector. The PET2000-12-074RA is provided with a front to rear airflow, which means the air enters on the AC-inlet side of the supply and leaves at the DC-output, while the PET2000-12-074NA is provided with a rear to front airflow, which means the air enters through the DC-output of the supply and leaves at the AC-inlet side, as shown in Figure 33. The PET2000-12-074xA supply has been designed for horizontal operation. Airflow PET2000-12-074RA Airflow PET2000-12-074NA Figure 33. Airflow direction Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 22 The fan inside the supply is controlled by a microprocessor. The rpm of the fan is adjusted to ensure optimal supply cooling and is a function of output power. Three different curves are selected based on input voltage and inlet temperature. With standby output loaded the fan speed minimum is limited to ensure enough cooling of circuits providing standby power. Figure 34 illustrates the programmed fan curves. PET2000-12-074NA PET2000-12-074RA Figure 34. Fan speed vs. main output load 10.2 TEMPERATURE MONITOR AND OVER TEMPERATURE PROTECTION PET2000-12-074xA provides access via I2C to the measured temperatures of in total 6 sensors within the power supply, see Table 4. The microprocessor is monitoring these temperatures and if warning threshold of one of these sensors is reached it will set fan to maximum speed. If temperatures continue to rise above shut down threshold the main output V1 (or VSB if auxiliary converter is affected) will be disabled. At the same time the warning or fault condition is signalized accordingly through LED, PWOK_H and SMBALERT_L. TEMPERATURE SENSOR DESCRIPTION / CONDITION POWER MANAGEMENT BUS REGISTER WARNING THRESHOLD SHUTDOWN THRESHOLD 8Dh 61C 63C 8Eh 105C 110C PET2000-12-074RA Inlet Air Temperature Synchronous Rectifier Sensor located on control board close to DC end of PSU Sensor located on secondary side of DC/DC stage Primary Heat Sink Sensor located on primary heat sink 8Fh 96C 101C Output ORing Element Sensor located close to output D2h 105C 110C Auxiliary Converter Sensor located on secondary side on auxiliary rectifier D3h 95C 100C Outlet Ambient Sensor located near output connector D4h 85C 90C 8Dh 75C 78C 8Eh 95C 100C PET2000-12-074NA Inlet Air Temperature Synchronous Rectifier Sensor located on control board close to DC end of PSU Sensor located on secondary side of DC/DC stage Primary Heat Sink Sensor located on primary heat sink 8Fh 87C 92C Output ORing Element Sensor located close to output D2h 100C 105C Auxiliary Converter Sensor located on secondary side on auxiliary rectifier D3h 80C 85C Bridge Rectifier Sensor located on heat sink for AC rectifier D4h 86C 91C Table 4. Temperature sensor location and thresholds tech.support@psbel.com PET2000-12-074xA 10.3 23 MAXIMUM OUTPUT POWER VERSUS INLET TEMPERATURE FOR SAFETY COMPLIANCY For safety compliant operation the power supply must not exceed specified operating conditions specified herein. These operating conditions ensure the input AC connector is operated within its ratings. The different input AC connectors and regional usage is not considered in this implementation of current limitation. Therefore, it is under the responsibility of the user to ensure safety compliant operation. 110.3.1 PET2000-12-074RA Between 0C and 40C power supply inlet temperature the maximum allowed output power is only depending on AC input connector type chosen, regional usage and the applied nominal input AC voltage. Above 40C the maximum output power is further reduced with rising temperature. Figure 35 to Figure 38 illustrate these maximum current and power levels. The mentioned power levels are related to main output power only, in addition the standby output can be operated up to 5 A with derating to 3 A as shown in Figure 37. Above 55C the power supply is adjusting the current limit level I1 OC Slow depending on input voltage range (100-127 VAC or 200-240 VAC) and inlet temperature, as shown in Figure 38 to protect the power supply from excessive component temperatures. Figure 35. Maximum I1 PET2000-12-074RA (IEC 60320-C14) Figure 36. Maximum P1 PET2000-12-074RA (IEC 60320-C14) Figure 37. Maximum ISB Figure 38. Current limitation vs temperature Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 24 110.3.2 PET2000-12-074NA Between 0C and 55C power supply inlet temperature the maximum allowed output power is only depending on AC input connector type chosen, regional usage and the applied nominal input AC voltage. Above 55C the maximum output power is further reduced with rising temperature. Figure 39 to Figure 44 illustrate these maximum current and power levels. The mentioned power levels are related to main output power only, in addition the standby output can be operated up to 5 A with derating to 3 A as shown in Figure 45. Above 55C the power supply is adjusting the current limit level I1 OC Slow depending on input voltage range (100-127 VAC or 200-240 VAC) and inlet temperature, as shown in Figure 46. Figure 39. Maximum I1 PET2000-12-074NA (IEC 60320-C14) Figure 40. Maximum P1 PET2000-12-074NA (IEC 60320-C14) Figure 41. Maximum I1 PET2000-12-074NAC (IEC 60320-C16) Figure 42. Maximum P1 PET2000-12-074NAC (IEC 60320-C16) Figure 43. Maximum I1 PET2000-12-074NAA (Anderson Saf-D-Grid(R)) Figure 44. Maximum P1 PET2000-12-074NAA (Anderson Saf-D-Grid(R)) tech.support@psbel.com PET2000-12-074xA 25 Figure 45. Maximum ISB 11.1 Figure 46. Current limitation vs temperature IMMUNITY PARAMETER DESCRIPTION / CONDITION ESD Contact Discharge ESD Air Discharge Radiated Electromagnetics Filed Burst Surge CRITERION IEC / EN 61000-4-2, 8 kV, 25+25 discharges per test point (metallic case, LED, connector body) IEC / EN 61000-4-2, 15 kV, 25+25 discharges per test point (non-metallic user accessible surfaces) IEC / EN 61000-4-3, 10 V/m, 1 kHz/80% Amplitude Modulation, 1s Pulse Modulation, 10 kHz ... 2 GHz IEC / EN 61000-4-4, Level 3 AC port 2 kV, 1 minute IEC / EN 61000-4-5, Level 3 Line to Earth: 2 kV Line to Line: 1 kV RF Conducted Immunity IEC / EN 61000-4-6, Level 3, 10 Vrms, CW, 0.1 ... 80 MHz Voltage Dips and Interruptions IEC / EN 61000-4-11 Vi 230VAC / 50 Hz, 90% load, Phase 0, Dip 100% , duration 10 ms Vi 200VAC / 50 Hz, 70% load, Phase 0, Dip 30% , duration 500 ms Vi 200VAC / 50 Hz, 100% load, Phase 0, Dip 20% , duration 10 s 1. 11.2 A A A A A A V1: A, VSB: A V1: A, VSB: A V1: A, VSB: A EMISSION PARAMETER Conducted Emission Radiated Emission DESCRIPTION / CONDITION CRITERION EN 55022 / CISPR 22: 0.15 ... 30 MHz, QP and AVG, single power supply EN 55022 / CISPR 22: 0.15 ... 30 MHz, QP and AVG, 2 power supplies in a system EN 55022 / CISPR 22: 30 MHz ... 1 GHz, QP, single power supply EN 55022 / CISPR 22: 30 MHz ... 1 GHz, QP, 2 power supplies in a system Class A 6 dB margin Class A Class A 6 dB margin Class A Harmonic Emissions IEC 61000-3-2, Vi = 115 VAC / 60 Hz & 230 VAC / 50 Hz, 100% Load AC Flicker IEC 61000-3-3, Vi = 230 VAC / 50Hz, 100% Load Class A Pass Acoustical Noise Distance at bystander position, 25C, 50% Load 65 dBA Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 26 Maximum electric strength testing is performed in the factory according to IEC/EN 60950, and UL 60950. Input-to-output electric strength tests should not be repeated in the field. Bel Power Solutions will not honor any warranty claims resulting from electric strength field tests. PARAMETER Agency Approvals Grade of Insulation Creepage / Clearance Electrical Strength Test DESCRIPTION / CONDITION NOTES Approved to latest edition of the following standards: UL/CSA60950-1, IEC60950-1 and EN60950-1. NEMKO NO86275, EAC NO 0230738, COC Input (L/N) to chassis (PE) Input (L/N) to output Output to chassis Primary (L/N) to chassis (PE) Primary to secondary Input to chassis Input to output (tested by manufacturer only) PARAMETER DESCRIPTION / CONDITION Up to 1'000 m ASL TA Approved Basic Reinforced None (Direct connection) Min. 2121 VDC 4242 VDC MIN NOM -20 - 3'048 10'600 m m 0 Linear derating from 1'000 to 3'048 m ASL Reduced output TA ext up to 1'000 m ASL Extended Temp. Range Linear derating from 1'000 to 3'048 m ASL TS Storage Temperature Non-operational Altitude Operational, above Sea Level Non-operational, above Sea Level Shock, operational Half sine, 11ms, 10 shocks per direction, 6 directions Shock, non-operational Vibration, sinusoidal, operational Vibration, sinusoidal, non-operational Vibration, random, non-operational UNIT +40 +55* +35 +45* +55 +70* +50 +60* +70 Ambient Temperature power13, MAX IEC/EN 60068-2-6, sweep 5 to 500 to 5 Hz, 1 octave/min, 5 sweep per axis IEC/EN 60068-2-64, 5 to 500 Hz, 1 hour per axis C C C C 1 g peak 30 1 g peak g peak 4 g peak 0.025 g2/Hz MAX UNIT * Max temperature values for PET2000-12-074NA model. PARAMETER MTBF Mean time to failure PARAMETER Dimensions m 13 Weight DESCRIPTION / CONDITION TA = 25C, according Telcordia SR-332, issue 3, GB, confidence level = 90% DESCRIPTION / CONDITION Width Heigth Depth MIN NOM 860 MIN kh NOM MAX UNIT 73.5 40.0 265.0 mm mm mm 1.1 kg See chapter 10.3 tech.support@psbel.com PET2000-12-074xA 27 15.1 OUTLINE PET2000-12-074xA, PET2000-12-074xAC Figure 47. Top and side view Figure 48. Front view Figure 49. Rear view Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 28 15.2 OUTLINE PET2000-12-074NAA Figure 50. Top and side view Figure 51. Front view Figure 52. Detail A tech.support@psbel.com PET2000-12-074xA 29 15.3 OPTION OF ADDING KEYING SCREW A thread added to the side of the PET2000-12-074xA allows the user to add a screw to prevent the PET2000-12-074xA from being inserted into systems using other card edge connector types with the same power supply width and height. In such case, systems using PET2000-12-074xA must have a slot of o6 mm x 14 mm implemented to allow PET2000-12-074xA to be inserted. The maximum size of the screw head is o6 mm and height 2.12 mm. Figure 53. Polarizing screw 15.4 OUTPUT CONNECTOR PIN LOCATIONS S13 P36 S12 P1 Figure 54. Rear view S13 S24 P19 P28 P29 P36 Figure 55. Card edge PCB top view S12 S1 P18 P11 P10 P1 Figure 56. Card edge PCB bottom view Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 30 PARAMETER DESCRIPTION / CONDITION AC inlet PET2000-12-074xA : IEC 60320-C14 PET2000-12-074xAC : IEC 60320-C16 PET2000-12-074NAA: Anderson Saf-D-Grid(R), P/N 2006G1 AC cord requirement Wire size Output connector 36 Power- + 24 Signal-Pins PCB card edge MIN 16 NOM MAX UNIT AWG Manufacturer: FCI Electronics Mating output connector Manufacturer P/N: 10130248-005LF (see Figure 59 for option x) Bel Power Solutions P/N: ZES.00678 16.1 MATING OUTPUT CONNECTOR SPECIFICATION Figure 57. Mating connector drawing page 1 tech.support@psbel.com PET2000-12-074xA 31 Figure 58. Mating connector drawing page 2 Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL 32 PET2000-12-074xA Figure 59. Mating connector drawing page 3 tech.support@psbel.com PET2000-12-074xA 33 16.2 MATING OUTPUT CONNECTOR SPECIFICATION PIN SIGNAL NAME P1 ~ P10 GND P29 ~ P36 GND P11 ~ P18 V1 P19 ~ P28 V1 S1 A0 S2 A1 S3, S4 VSB S5 HOTSTANDBYEN_H MATING SEQUENCE14 DESCRIPTION Power and signal ground (return) 1 +12 VDC main output 2 2 I2C address selection input 2 +12 V Standby positive output (as pins S3, S4) 2 Hot standby enable signal, active-high 2 S6 ISHARE Analog current share bus 2 S7 Reserved For future use, do not connect 2 S8 PRESENT_L Power supply seated, active-low 3 S9 A2 I2C address selection input 2 Power and signal ground (return) 2 Power OK signal output, active-high 2 S10 ~ S15 GND S16 PWOK_H S17 V1_SENSE Main output positive sense 2 S18 V1_SENSE_R Main output negative sense 2 S19 SMB_ALERT_L SMB Alert signal output, active-low 2 S20 PSON_L Power supply on input, active-low 3 S21, S22 VSB +12 V Standby positive output (as pins S3, S4) 2 S23 SCL I2C 2 S24 SDA I2C data signal line clock signal line 2 Table 5. Output connector pin assignment 14 1 = First, 3 = Last, given by different card edge finger pin lengths and mating connector pin arrangement Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 (c) 2019 Bel Power Solutions BCD.00478_AL PET2000-12-074xA 34 ITEM ORDERING PART NUMBER SOURCE I2C Utility Windows XP/Vista/7 compatible GUI to program, control and monitor Front-End power supplies (and other I2C units) ZS-00130 belfuse.com/power-solutions Evaluation Board Connector board to operate PET2000-12-074xA. Includes an onboard USB to I2C converter (use I2C Utility as desktop software). YTM.00046 belfuse.com/power-solutions AC cable for PET2000-12-074NAA Anderson Saf-D-Grid(R) receptacle to IEC 60320-C20 plug, 14 AWG, 2 m, Anderson P/N 2052KH2 TBD DESCRIPTION DATE REVISION DESCRIPTION OF CHANGE ECO/MCO REFERENCE NO. 2019-Jun-19 AL Page 4: Max. Output currents updated in the table C94036 NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. tech.support@psbel.com