PET2000-12-074NA

Bel Fuse Inc.

Full digital controls for improved performance

Manufacturer: Bel Fuse Inc.

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© 2015 Bel Power Solutions, Inc. North America +1-866.513.2839 Asia-Pacific +86.755.29885888 Europe, Middle East +353 61 225 977 tech.support@psbel.com BCD.00478_AC The PET2000-12-074NA 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 for powering intermediate bus architectures (IBA) in high performance and reliability servers, routers, and network switches. The PET2000 -12-074NA 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 (certification pending)  Auto-selected input voltage ranges: 90-140 VAC, 180-264 VAC  AC input with power factor correction  2000 W continuous and 2100W peak output power capability  Always-On 12V/5A 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: 73.5 x 40.0 x 265 mm  PMBus communication interface for control, programming and monitoring  Status LED with fault signaling

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC PET 2000 - 12 - 074 N A Product Family PET Front-Ends Power Level 2000 W Dash V1 Output 12 V Dash Width 74 mm Airflow N: Normal Input A: AC AC Inlet1 Blank: C14 C: C16 A: Saf-D-Grid® The PET2000-12-074NA 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 PET2000-12-074NA 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. Logic Signals V1_SENSE L Curr ent limit Aux Converter GND VSB N PFC DC DC Digital Primary Controls V1_SENSE_RTN I2C PWM Filter PE PWM Communication Bus A2..0 Digital Secondary Controls EEPROM Fan ISHARE

1 C14 = IEC 60320-C14 type, C16 = IEC 60320-C16 type, Saf-D-Grid® = Anderson Saf-D-Grid®

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC 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 DESCRIPTION / CONDITION MIN NOM MAX UNIT Vi maxc Maximum Input Voltage Continuous 264 VAC General Condition: TA = 0… 55 °C unless otherwise noted. PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT Vi nom Nominal Input Voltage Rated Voltage High Line (Vi nom HL) 200 230 240 VAC Rated Voltage Low Line (Vi nom LL) 100 115 127 VAC Vi Input Voltage Ranges 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 Ii max Maximum Input Current Vi=100VAC, I1=83A, ISB=5A 13 ARMS Vi=200VAC, I1=167A, ISB=5A 12 Vi=200VAC, I1=145A, ISB=5A 10 Vi=220VAC, I1=158A, ISB=5A 10 Vi=230VAC, I1=167A, ISB=5A 10 Ii inrush Inrush Current Limitation Vi min to Vi max, TNTC=25°C, 5ms 10 Ap fi Input Frequency 47 50/60 63 Hz PF Power Factor Vi=230VAC, 10% load 0.8 0.88 W/VA Vi=230VAC, 20% load 0.9 0.95 W/VA Vi=230VAC, 50% load 0.9 0.997 W/VA Vi=230VAC, 100% load 0.95 0.999 W/VA THD Total Harmonic Distortion TBD TBD % Vi on Turn-on Input Voltage2 Ramping up 87 90 VAC Vi off Turn-off Input Voltage2 Ramping down 82 87 VAC η Efficiency3 Vi=230VAC, 10% load 90 91.6 % Vi=230VAC, 20% load 91 93.8 % Vi=230VAC, 50% load 94 94.4 % Vi=230VAC, 100% load 91 92.8 % TV1 holdup Hold-up Time V1 Vi=230VAC, 50% load, 0° 20 ms Vi=230VAC, 100% load, 0° 10 ms TVSB holdup Hold-up Time VSB Vi=90 to 264VAC, 0 to 100% load 70 ms 2 The Front-End is provided with a minimum hysteresis of 3V during turn-on and turn-off within the ranges

3 Efficiency measured without fan power per EPA server guidelines

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC The 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 10A for areas outside North America, in addition the IEC 60320- C14 has a limited component temperature of 70°C. The Anderson Saf-D-Grid® has no limitation with respect to both current and temperature. 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 to chapter 10.3 Maximum output power versus inlet temperature for Safety Compliancy for detailed derating curves. Type Input connector Region Applied Rated Mains AC Voltage4 Max I1 at TA=55°C Maximum derated I1 at maximum TA PET2000-12-074NA IEC 60320-C14 North America 100 to 127VAC 83A 50A at TA=70°C 200 to 240VAC 167A 80A at TA=70°C Other than North America 100 to 127VAC 67A 17.5A at TA=65°C 200 to 220VAC 145A 32.5A at TA=65°C 220 to 230VAC 158A 40A at TA=65°C 230 to 240VAC 167A 43A at TA=65°C PET2000-12-074NAC IEC 60320-C16 North America 100 to 127VAC 83A 50A at TA=70°C 200 to 240VAC 167A 80A at TA=70°C Other than North America 100 to 127VAC 67A 40A at TA=70°C 200 to 220VAC 145A 87A at TA=70°C 220 to 230VAC 158A 95A at TA=70°C 230 to 240VAC 167A 100A at TA=70°C PET2000-12-074NAA Anderson Saf-D-Grid® All 100 to 127VAC 83A 50A at TA=70°C 200 to 240VAC 167A 100A at TA=70°C Time-lag 16A 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. The AC-DC power supply exhibits an X-capacitance of only 5.2μF, 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. 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 -240VAC allows operation at 230VAC -10% to 240VAC +10%, so 207 … 264VAC actual voltage to account for grid fluctuations

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC General Condition: TA = 0…55°C, Vi = 230VAC unless otherwise noted. PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT V1 nom Nominal Output Voltage 0.5 ∙ I1 nom, TA = 25°C

12.0 VDC

V1 set Output Setpoint Accuracy -0.5 +0.5 %V1 nom dV1 tot Total Static Regulation Vi min LL to Vi max HL, 0 to 100% I1 nom -1 +1 %V1 nom P1 nom Nominal Output Power5 Vi min HL to Vi max HL 2000 W Vi min LL to Vi max LL 1000 W P1 peak Peak Output Power6 Vi min HL to Vi max HL 2100 W Vi min LL to Vi max LL 1320 W I1 nom Output Current Vi min HL to Vi max HL 0 167 ADC I1 nom red Vi min LL to Vi max LL 0 83 ADC I1 peak Peak Output Current6 Vi min HL to Vi max HL 0 175 ADC I1 peak red Vi min LL to Vi max LL 0 110 ADC V1 pp Output Ripple Voltage7 Vi min LL to Vi max HL, 0 to 75% I1 nom, Cext = 0mF 120 mVpp Vi min LL to Vi max HL, 75 to 100% I1 nom, Cext = 0mF 150 mVpp Vi min LL to Vi max HL, 0 to 100% I1 nom, Cext ≥ 1mF/Low ESR 120 mVpp dV1 load Load Regulation 0 to 100% I1 nom -83 -110 -138 mV dV1 line Line Regulation Vi min HL to Vi max HL, 0.5 ∙ I1 nom -24 0 24 mV dI1 share Current Sharing Difference between individual I1, 0 … 8 power supplies in parallel -8 +8 ADC VISHARE Current Share Bus Voltage I1 peak 9.14 VDC dV1 lt Load Transient Response ΔI1 = 50% I1 nom, I1 = 5 … 100% I1 nom, Cext = 0mF, ΔI1 = 10% I1 nom, I1 = 0 … 10% I1 nom, Cext = 0mF, dI1/dt = 1A/μs, recovery within 1% of V1 nom 0.35 0.6 VDC 0.35 0.6 VDC trec Recovery Time 0.5 1 ms V1 dyn Dynamic Load Regulation ΔI1 = 60% I1 nom, I1 = 1 … 167A, f = 50 ... 5000Hz, tV1 rise Output Voltage Rise Time V1 = 10…90% V1 nom, Cext < 10mF 6 8 10 ms tV1 ovr sh Output Turn-on Overshoot 0 to 100% I1 nom 0.6 V dV1 sense Remote Sense Compensation for cable drop, 0 to 100% I1 nom 0.25 V CV1 load Capacitive Loading 0 30 mF

5 See also chapter TEMPERATURE AND FAN CONTROL

6 Peak combined power for all outputs must not exceed 2100 W; maximum of peak power duration is 20 seconds without asserting th e SMBAlert signal 7 Measured with a 10uF low ESR capacitor in parallel with a 0.1uF ceramic capacitor at the point of measurement

12.1 VDC

VSB set Output Setpoint Accuracy -1 +1 %VSBnom dVSB tot Total Regulation Vi min LL to Vi max HL, 0 to 100% ISB nom -5 +1 %VSBnom PSB nom Nominal Output Power Vi min LL to Vi max HL 60 W PSB peak Peak Output Power8 Vi min LL to Vi max HL 60 W ISB nom Output Current Vi min LL to Vi max HL 0 5 ADC ISB peak Peak Output Current8 Vi min LL to Vi max HL 0 5 ADC VSB pp Output Ripple Voltage7 Vi min LL to Vi max HL, 0 to 100% ISB nom, Cext = 0mF 120 mVpp Vi min LL to Vi max HL, 0 to 100% ISB nom, Cext ≥ 1mF/Low ESR 120 mVpp dVSB load Load Regulation 0 to 100% ISB nom -290 -430 -570 mV dVSB line Line Regulation Vi min HL to Vi max HL, ISB nom = 0A -24 0 24 mV dVSB temp Thermal Drift ISB = 0A -0.5 mV/°C dISB share Current Sharing Deviation from ISB tot / N, ISB = 0.5 ∙ ISB nom -1 +1 ADC dVSB lt Load Transient Response ΔISB = 50% ISB nom, ISB = 0 … 100% ISB nom, dISB/dt = 1A/μs, recovery within 1% of VSB nom 0.2 0.3 VDC trec Recovery Time 1 2 ms VSB dyn Dynamic Load Regulation ΔISB = 1A, ISB = 0 … ISB nom, f = 50 ... 5000Hz, Duty tVSB rise Output Voltage Rise Time VSB = 10…90% VSB nom, Cext < 1mF 1 2 5 ms tVSB ovr sh Output Turn-on Overshoot 0 to 100% ISB nom 0.6 V CVSB load Capacitive Loading 0 3100 μF Figure 4 - 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)

8 In single power supply configuration

Figure 5 – Rise time V1 at 230VAC, full load (2ms/div) CH3: V1 (2V/div)

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT F Input fuse (L) Not use accessible, time-lag (T) 16 A V1 OV OV Threshold V1 Over Voltage V1 Protection, Latch-off Type 13.3 13.9 14.5 VDC tV1 OV OV Trip Time V1 1 ms VSB OV OV Threshold VSB Over Voltage V1 Protection, Automatic retry each 1s 13.3 13.9 14.5 VDC tVSB OV OV Trip Time VSB 1 ms I1 OC Slow OC Limit V1 Over Current Limitation, Latch-off, Vi min HL to Vi max HL 169 173 ADC Over Current Limitation, Latch-off, Vi min LL to Vi max LL 85 88 ADC tV1 OC Slow OC Trip time V1 Over Current Limitation, Latch-off time 20 s I1 OC Fast Fast OC Limit V1 Fast Over Current Limit., Latch-off, Vi min HL to Vi max HL 175 180 ADC Fast Over Current Limit., Latch-off, Vi min LL to Vi max LL 110 115 ADC tV1 OC Fast Fast OC Trip time V1 Fast Over Current Limitation, Latch-off time 50 55 60 ms I1 SC Max Short Circuit Current V1 V1 < 3V 180 A tV1 SC Short Circuit Regulation Time V1 < 3V, time until I1 is limited to < I1 sc 2 ms ISB OC OC Limit VSB Over Current Limitation, Constant-Current Type 5.2 7.5 A tVSB OC OC Trip time VSB Over Current Limit., time until ISB is limited to ISB OC 1 ms TSD Over Temperature See chapter 10.2 °C The PET2000-12-074NA 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. 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 10V (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 2ms then the main output is disabled to protect the system. MAIN OUTPUT The main output exhibits a substantially rectangular output characteristic controlled by a software feedback loop. If output current exceeds I1 OC Fast it will reduce the output voltage in order to keep output current at I1 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.

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC The power supply operating parameters can be accessed through I2C interface. For more details refer to chapter I2C / PMBus COMMUNICATION and document URP.00234 (PET2000-12-074NA PMBus Communication Manual). PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT Vi mon Input RMS Voltage Vi min LL ≤ Vi ≤ Vi max HL -3 +3 VAC Ii mon Input RMS Current Ii > 6.7Arms -4 +4 % Ii ≤ 6.7Arms -0.3 +0.3 Arms Pi mon True Input Power Pi > 500W -4 +4 % 50W < Pi ≤ 500W -20 +20 W V1 mon V1 Voltage -0.1 +0.1 VDC I1 mon V1 Current I1 > 50A -1 +1 % 5A < I1 ≤ 50A -0.5 +0.5 ADC P1 nom V1 Output Power Pi > 1000W -1 +1 % 50W < Pi ≤ 1000W -10 +10 W VSB mon VSB Voltage -0.1 +0.1 VDC ISB mon VSB Current 0.5A < I1 -0.1 +0.1 ADC TA mon Inlet Temperature TA min ≤ TA ≤ TA max -2 +2 °C PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT PSON_H / HOTSTANDBYEN_H VIL Input Low Level Voltage PSON_L: Main output enabled -0.2 0.8 V HOTSTANDBYEN_H: Hot Standby mode not allowed VIH Input High Level Voltage PSON_L: Main output disabled 2 3.5 V HOTSTANDBYEN_H: Hot Standby mode allowed IIL,H Maximum Input Sink or Source Current VI = -0.2V to +3.5V -1 1 mA Rpull up Internal Pull up Resistor to internal 3.3V 10 kΩ RLOW Maximum external Pull down Resistance to GND to obtain Low Level 1 kΩ RHIGH Minimum external Pull down Resistance to GND to obtain High Level 50 kΩ PWOK_H VOL Output Low Level Voltage V1 or VSB out of regulation, VIsink < 4mA 0 0.4 V VOH Output High Level Voltage V1 and VSB in regulation, Isource < 0.5mA 2.4 3.5 V Rpull up Internal Pull up Resistor to internal 3.3V 1 kΩ IOL Maximum Sink Current VO < 0.4V 4 mA

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC 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. 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. Within the application the ISHARE pins of the PSU’s simply needs to be interconnected without any additional components or circuits. The standby output uses a passive current share method (droop output voltage characteristic). 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. Figure 17 – PSON_L connection PSU 1 PDU PSU 2 3.3V 3.3V PSU 1 PDU PSU 2 3.3V 3.3V PSON_L PSON_L PSON_L PSON_L 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 comb ining PWOK_H outputs of several power supplies, circuits as shown in Figure 18 should be used.

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC Figure 18 – PWOK_H connection PSU 1 PDU PSU 2 3.3V PWOK_H 3.3V PWOK_H PSU PDU 3.3V >10kΩ PSU 1 PDU PSU 2 3.3V PWOK_H 3.3V PWOK_H ≥1kΩ 3.3V >10kΩ PWOK_H 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 19) and the supply was allowed to enter the hot-standby 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 20 shows the achievable power loss savings when using the hot-standby mode operation. A total power loss reduction of approx. 10W is achievable. Figure 19 - Hot-standby enable/disable current thresholds

1 PSU on

2 PSU on

80A37.5A Total System Current167A Figure 20 - PSU power losses with/without hot-standby mode

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT tAC VSB AC Line to 90% VSB 1.5 s tAC V1 AC Line to 90% V1 PSON_L = Low 3 9 s tVSB V1 del VSB to V1 delay PSON_L = Low 50 150 1000 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 0.5 ∙ I1 nom, ISB nom 17 ms 0.7 ∙ I1 nom, ISB nom 13 ms 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 tVSB holdup Loss of AC to VSB leaving regulation See chapter INPUT tPWOK_H del Outputs in regulation to PWOK_H asserted 100 150 200 ms tPWOK_H warn Warning time from de-assertion of PWOK_H to V1 leaving regulation 1 ms tPWOK_H holdup Loss of AC to PWOK_H de-asserted Vi nom HL, I1 nom, ISB nom 10 ms tPWOK_H low Time PWOK_H is kept low after being de- asserted 100 ms tPSON_L V1 on Delay PSON_L active to V1 in regulation Cext = 0mF 5 10 20 ms tPSON_L V1 off Delay PSON_L de-asserted to V1 disabled 2 3 4 ms tPSON_L PWOK_H 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 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. Table 1 - LED Status OPERATING CONDITION 10 LED SIGNALING No AC or AC Line in UV condition, VSB not present from paralleled power supplies Off PSON_L High Blinking Green 1Hz Hot-Standby Mode No AC or AC Line in UV condition, VSB present from paralleled power supplies Solid Amber V1 or VSB out of regulation Over temperature shutdown Output over voltage shutdown (V1 or VSB) Output over current shutdown (V1 or VSB) Fan error (>15%) Over temperature warning Blinking Amber 1Hz Minor fan regulation error (>5%, <15%) Firmware boot loading in process Blinking Green 2Hz Outputs V1 and VSB in regulation Solid Green

9 At repeated ON-OFF cycles the start-up times may increase by 1s

10 The order of the criteria in the table corresponds to the testing precedence in the controller

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC 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 further characterized through:  The SDA/SCL IOs use 3.3V 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 Figure 27 - Physical layer of communication interface 3.3V Rpull-up TX RX SDA/SCL 3.3V 10kΩ DSP or EEPROM TX_EN 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. Table 2 - I2C / SMBus Specification PARAMETER DESCRIPTION CONDITION MIN MAX UNIT SCL / SDA ViL Input low voltage -0.5 1.0 V ViH Input high voltage 2.3 3.5 V Vhys Input hysteresis 0.15 V VoL Output low voltage 3 mA sink current 0 0.4 V tr Rise time for SDA and SCL 20+0.1Cb1 300 ns tof Output fall time ViHmin  ViLmax 10 pF < Cb1 < 400 pF 20+0.1Cb1 250 ns Ii Input current SCL/SDA 0.1 VDD < Vi < 0.9 VDD -10 10 μA Ci Internal Capacitance for each SCL/SDA 50 pF fSCL SCL clock frequency 0 100 kHz Rpull-up External pull-up resistor fSCL ≤ 100 kHz 1000 ns / Cb1 Ω tHDSTA Hold time (repeated) START fSCL ≤ 100 kHz 4.0 μs tLOW Low period of the SCL clock fSCL ≤ 100 kHz 4.7 μs tHIGH High period of the SCL clock fSCL ≤ 100 kHz 4.0 μs tSUSTA Setup time for a repeated START fSCL ≤ 100 kHz 4.7 μs tHDDAT Data hold time fSCL ≤ 100 kHz 0 3.45 μs tSUDAT Data setup time fSCL ≤ 100 kHz 250 ns tSUSTO Setup time for STOP condition fSCL ≤ 100 kHz 4.0 μs tBUF Bus free time between STOP and START fSCL ≤ 100 kHz 5 ms

1 Cb = Capacitance of bus line in pF, typically in the range of 10…400pF

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC Figure 28 - 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. Table 3 - Address and protocol encoding A2 A1 A0 I2C Address11 Controller EEPROM 0 0 0 0xB0 0xA0 0 0 1 0xB2 0xA2 0 1 0 0xB4 0xA4 0 1 1 0xB6 0xA6 1 0 0 0xB8 0xA8 1 0 1 0xBA 0xAA 1 1 0 0xBC 0xAC 1 1 1 0xBE 0xAE 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, under-voltage or low-speed of 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 SMB_ALERT_L Vext Maximum External Pull up Voltage 12 V IOH Maximum High Level Leakage Current No Failure or Warning condition, VO = 12V 10 µA VOL Output Low Level Voltage Failure or Warning condition, Isink < 4mA 0 0.4 V Rpull up Internal Pull up Resistor to internal 3.3V None IOL Maximum Sink Current VO < 0.4V 4 mA

11 The LSB of the address byte is the R/W bit

tHDSTAtSUSTA tHDDAT tSUDAT tSUSTO tBUF tof SDA SCL

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC The Power Management Bus (PMBus™) 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. PMBus™ command codes are not register addresses. They describe a specific command to be executed. The PET2000- 12-074NA 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 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). In addition, Block write commands are supported with a total maximum length of 255 bytes. See PET2000-12-074NA PMBus Communication Manual URP.00234 for further information. 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. In addition, Block read commands are supported with a total maximum length of 255 bytes. See PET2000-12-074NA PMBus Communication Manual URP.00234 for further information. Data nA P S Address W A Data Address A S Address R A S Address W A Command A Data Low Byte1) A Data High Byte1) A P 1) Optional S Address W A Command A Byte 1 A Byte N A P Byte Count A S Address W A Command A Data (Low) Byte AS Address R A Data High Byte1) nA P 1) Optional S Address W A Command A Byte 1 A S Address R A Byte N nA PByte Count A

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC Bel Power Solutions provides with its “I2C Utility” a Windows® XP/Vista/Win7 compatible graphical user interface allowing the programming and monitoring of the PET2000-12-074NA Front-End. The utility can be downloaded on: www.belpowersolutions.com. 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. Figure 31 - Monitoring dialog of the I2C Utility

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC PARAMETER DESCRIPTION / CONDITION CRITERION Conducted Emission EN 55022 / CISPR 22: 0.15 … 30 MHz, QP and AVG, single power supply Class B EN 55022 / CISPR 22: 0.15 … 30 MHz, QP and AVG, 2 power supplies in a system Class B Radiated Emission EN 55022 / CISPR 22: 30 MHz … 1 GHz, QP, single power supply Class A 6 dB margin EN 55022 / CISPR 22: 30 MHz … 1 GHz, QP, 2 power supplies in a system Class A Harmonic Emissions IEC 61000-3-2, Vi = 115 VAC / 60 Hz & 230 VAC / 50 Hz, 100% Load Class A AC Flicker IEC 61000-3-3, Vi = 230 VAC / 50Hz, 100% Load Pass Acoustical Noise Distance at bystander position, 25°C, 25% Load 50 dBA 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 DESCRIPTION / CONDITION NOTE Agency Approvals Approved to latest edition of the following standards: UL/CSA60950-1, IEC60950-1 and EN60950-1. Grade of Insulation Input (L/N) to chassis (PE) Basic Input (L/N) to output Reinforced Output to chassis None (Direct connection) Creepage / Clearance Primary (L/N) to chassis (PE) Primary to secondary Electrical Strength Test Input to chassis Input to output (tested by manufacturer only) Min. 2121 VDC

4242 VDC

PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT TA Ambient Temperature Up to 1’000m ASL 0 +55 °C Linear derating from 1’000 to 3’048m ASL +45 °C TA ext Extended Temp. Range Reduced output power12, up to 1’000m ASL +70 °C Linear derating from 1’000 to 3’048m ASL +60 TS Storage Temperature Non-operational -20 +70 °C Altitude Operational, above Sea Level - 3’048 m Non-operational, above Sea Level - 10’600 m Shock, operational Half sine, 11ms, 10 shocks per direction, 6 directions 1 g peak Shock, non-operational 30 g peak Vibration, sinusoidal, operational IEC/EN 60068-2-6, sweep 5 to 500 to 5 Hz, 1 octave/min, 5 sweep per axis 1 g peak Vibration, sinusoidal, non-operational 4 g peak Vibration, random, non-operational IEC/EN 60068-2-64, 5 to 500 Hz, 1 hour per axis 0.025 g2/Hz 12 See chapter 10.3 Maximum output power versus inlet temperature for Safety Compliancy

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT AC Inlet PET2000-12-074NA : IEC 60320-C14 PET2000-12-074NAC : IEC 60320-C16 PET2000-12-074NAA : Anderson Saf-D-Grid®, P/N 2006G1 AC Cord Requirement Wire size 16 AWG Output Connector 36Power- + 24Signal-Pins PCB card edge Mating Output Connector Manufacturer: FCI Electronics Manufacturer P/N: 10130248-005LF (see Figure 54 for option x) Bel Power Solutions P/N : ZES.00678 Figure 52 – Mating connector drawing page 1

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC Figure 55 – Output connector pin assignment PIN SIGNAL NAME DESCRIPTION Mating Sequence13 P1 ~ P10 GND Power and signal ground (return) 1 P29 ~ P36 GND P11 ~ P18 V1 +12VDC main output 2 P19 ~ P28 V1 S1 A0 I2C address selection input 3 S2 A1 3 S3, S4 VSB +12V Standby positive output (as pins S3, S4) 3 S5 HOTSTANDBYEN_H Hot standby enable signal, active-high 3 S6 ISHARE Analog current share bus 3 S7 Reserved For future use, do not connect 3 S8 PRESENT_L Power supply seated, active-low 4 S9 A2 I2C address selection input 3 S10 ~ S15 GND Power and signal ground (return) 3 S16 PWOK_H Power OK signal output, active-high 3 S17 V1_SENSE Main output positive sense 3 S18 V1_SENSE_R Main output negative sense 3 S19 SMB_ALERT_L SMB Alert signal output, active-low 3 S20 PSON_L Power supply on input, active-low 4 S21, S22 VSB +12V Standby positive output (as pins S3, S4) 3 S23 SCL I2C clock signal line 3 S24 SDA I2C data signal line 3 13 1=First, 4=Last, given by different card edge finger pin lengths and mating connector pin arrangement

© 2015 Bel Power Solutions, Inc. 866.513.2839 tech.support@psbel.com BCD.00478_AC ITEM DESCRIPTION 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 www.belpowersolutions.com Evaluation Board Connector board to operate PET2000-12-074NA. Includes an on- board USB to I2C converter (use I2C Utility as desktop software). YTM.00046 www.belpowersolutions.com AC cable for PET2000-12-074NAA Anderson Saf-D-Grid® receptacle to IEC 60320-C20 plug, 14AWG, 2m, Anderson P/N 2052KH2 TBD

Product Information

PET2000-12-074NA specifications and overview.

Summary

Full digital controls for improved performance

Description

Full digital controls for improved performance

Source title PET2000-12-074NA Datasheet(PDF) - Bel Fuse Inc.

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