PEC550-12-074XA BEL | Alldatasheet
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Technical content
PEC550-12-074xA is a 550 Watt, CRPS AC to DC power supply module with a +12 V main DC output and a +12 V standby output. The power supply operates as a single supply, or N+1 parallel configuration. PEC550-12-074xA 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).
- 80 PLUS Platinum Efficiency
- Input Voltage Range 90 – 264 VAC / 180 – 300 VDC
- Output Voltage 12 VDC
- +12 VSB (2.1 A) Standby Output
- Output Power up to 550 W
- Intel Standard CRPS Form Factor
- Dimensions: 185 x 73.5 x 40 mm (7.28 x 2.89 x 1.57 in)
- High Power Density
- UL/CSA 62368-1, EN/IEC 62368-1 Safety Approved
- Supports N+1 Redundancy, Cold Redundancy, Internal ORing
- Black Box Recorder, Bootloader
- Clockwise and Counter-Clockwise Fan Rotation
- Supports Power Management Bus Communication Protocol
- Networking Switches
- Servers & Routers
- Telecommunications
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tech.support@psbel.com PEC 550 - 12 - 074 x A Product Family Power Level Dash V1 Output Dash Width Airflow Input PEC Front-Ends 550 W 12 V 73.5 mm N: Normal R: Reverse A: AC PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT Input Voltage Ranges* AC Voltage range 90 100-240 264 VRMS Start-up 85 ± 5 VAC Power Off 75 ± 5 VAC HVDC (240 V) 180 240 300 VDC Start-up 170 ± 5 VDC Power Off 160 ± 5 VDC AC Line Inrush Current 50 Ap Input Frequency 47 50/60 63 Hz Power Factor
230 VAC / 50 Hz and 115 VAC / 60 Hz, 10% load N/A
230 VAC / 50 Hz and 115 VAC /60 Hz, 20% load 0.90 230 VAC / 50 Hz and 115 VAC / 60 Hz, 50% load 0.96 230 VAC / 50 Hz and 115 VAC / 60 Hz, 100% load 0.98 Current iTHD
200 VAC / 230 VAC & 50 Hz / 60 Hz, Output power ≥ 20% 20
% 200 VAC / 230 VAC & 50 Hz / 60 Hz, Output power ≥ 50% 10
200 VAC / 230 VAC & 50 Hz / 60 Hz, Output power ≥ 100% 8
@ 10% load (230 VAC / 60 Hz) N/A % @ 20% load (230 VAC / 60 Hz) 90 % @ 50% load (230 VAC / 60 Hz) 94 % @ 100% load (230 VAC / 60 Hz) 91 % Hold-up Time Vi @ 100% load 10 ms Hold-up Time VSB @ 100% load 70 ms AC Line Sag 0 to 1/2 AC cycle (nom AC voltage ranges, 50/60 Hz) > 1 AC cycle (nom AC voltage ranges, 50/60 Hz) AC Line Surge Continuous (nom AC voltage ranges, 50/60 Hz) 0 to 1/2 AC cycle (mid-point of nom VAC ranges, 50/60 Hz) 10 30 % AC Line Isolation Primary to secondary, reinforced insulation 3000
4242 VAC
- Note: The Brown IN/OUT Hysteresis min is 5 VAC. 1. Maximum input current at low input voltage range is measured at 100-127 VAC, at max load. (7.5 Arms) 2. Maximum input current at high input voltage range is measured at 200-240 VAC, at max load. (3.6 Arms) 3. 3.6 Arms maximum while input voltage is 240 VDC.at max load; 4. AC Brown-in/out loading is 80%load (low line & high line)
2.1 AC INPUT CONNECTOR
The AC input connector is an IEC 320 C-14 power inlet. This inlet is rated for 10 A / 250 VAC.
3.1 TIMING REQUIREMENTS
Figure 1. Signal Timing Sequence 1
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Figure 2. Signal Timing Sequence 2
+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2020 Bel Power Solutions BCD.01072_A PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT Slow Over Current Protection (OCP) Shutdown and latch after MIN/MAX timing 20 ms Rating + 10 A 200 ms Rating + 18 A Slow OCW Slow over current warning (SMBAlert#) 10 ms Rating + 6 A 15 ms Rating + 10 A OCPstby Stby over current protection 1 ms
2.5 A 100 ms
4.0 A Over Voltage Protection (OVP) +12 V 13.3 14 14.5 V +12VSB 13.3 14 14.5 V Over Temperature Protection (OTP) Shutdown Short Circuit Protection (SCP) Shut down and latch off Protection circuits inside the power supply cause only the power supply’s main outputs to shutdown. If the power supply latches off due to a protection circuit tripping, an AC cycle OFF for 15 sec and a PSON# cycle HIGH for 1 sec shall be able to reset the power supply.
4.1 OVERVOLTAGE PROTECTION (OVP)
The power supply over voltage protection will be locally sensed. The power supply will shutdown and latch off after an over voltage condition occurs. This latch will be cleared by toggling the PSON# signal or by an AC power interruption. The values are measured at the output of the power supply’s connectors. The voltage sh ould never exceed the maximum levels when measured at the power connectors of the power supply connector during any single point of fail. The voltage should never trip any lower than the minimum levels when measured at the power connector. 12VSB will be auto-recovered after removing OVP limit.
4.2 OVER TEMPERATURE PROTECTION (OTP)
The power supply will be protected against over temperature conditions caused by loss of fan cooling or excessive ambient temperature. In an OTP condition the PSU will shutdown. When the power supply temperature drops to within specified limits, the power supply will restore power automatically, while the 12 VSB remains always on. The OTP circuit must have built in margin such that the power supply will not oscillate on and off due to temperature recovering condition. The OTP trip level shall have a minimum of 5°C of ambient temperature margin.
4.3 CURRENT LIMITATION (OCP)
The power supply has a current limit to prevent the outputs from exceeding the values shown in table above. If the current limits are exceeded the power supply shuts down and latches off. The latch will be cleared by toggling the PSON# signal or by an AC power interruption. The power supply will not be damaged from repeated power cycling in this condition. 12 VSB will be auto-recovered after removing OCP limit.
4.4 SHORT CIRCUIT PROTECTION (SCP)
The power supply shut s down and latch es off for shorting the main outputs. 12 VSB must be capable of being shorted indefinitely. The latch will be cleared by toggling the PSON# signal or by an AC power interruption. The power supply should not be damaged from repeated power cycling in this condition. 12 VSB will be auto-recovered after removing SCP limit.
4.5 OVER POWER PROTECTION (OPP)
The power supply supports over power protection (OPP) level low enough to protect the power supply running in this mode for repeated 1 msec durations at a 1% duty cycle. The power supply should be stable operating at any load point from rated power up to the OPP point. CRPS-185 Load Requirement for OPP Threshold = (Imax + 49 A) +/-50 W SMBAlert shall always assert ahead of the OPP threshold being exceeded
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Signal type 10k ohm pull up resistor from +3.3 Vdd device.
4.6 CLOSED LOOP SYSTEM THROTTLING (CLST)
reduced to less than the power supply rating; the power supply will continue to operate and not shutdown. Figure 3. CLST Timing Requirements
4.7 SMART RIDE-THROUGH (SmaRT)
The power supply will assert the SMBAlert# signal < 4 msec after AC input voltage is lost to 0 VAC.
5.1 DEVICE ADDRESS LOCATION (B19: A0; B20: A1)
pull-up resistor pulled to internal +3.3 V in the PSU. pull-up resistor pulled to internal +3.3 V in the PSU.
5.2 I2C BUS (S6: SCL; S5: SDA)
the mcu of PSU is slave device in I2C bus .The time interval of I2C command is 1ms.
+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2020 Bel Power Solutions BCD.01072_A SIGNAL TYPE (ACTIVE LOW) OPEN COLLECTOR / DRAIN OUTPUT FROM POWER SUPPLY. PULL-UP TO 3.3 VSB LOCATED IN SYSTEM. Alert# = High OK Alert# = Low Power Alert to system MIN MAX Logic level low voltage, Isink=4 mA 0 V 0.4 V Logic level high voltage, Isink=50uA 3.46 V Sink current, Alert# = low 4 mA Sink current, Alert# = high 50 uA SIGNAL TYPE ACCEPTS AN OPEN COLLECTOR/DRAIN INPUT FROM THE SYSTEM. PULL-UP TO 3.3VSB LOCATED IN POWER SUPPLY. PSON# = Low ON PSON# = High or Open OFF MIN MAX Logic level low (power supply ON) 0 V 1.0 V Logic level high (power supply OFF) 2.0 V 3.46 V Source current, Vpson = low 4 mA Power off delay: Tpson_off_delay 5 msec Power up delay: Tpson_on_delay 5 msec 400 msec PWOK delay: T pson_pwok 5 msec
5.3 SMBAlert# INDICATE (Pin A22: SMBAlert#)
This is an active low signal and indicates that the power supply is experiencing a problem that the user should investigate. This shall be asserted due to Critical events or Warning events. The signal shall activate in the case of critical component temperature reached a warning threshold, general failure, over-current, over-voltage, under-voltage, failed fan. This signal may also indicate the power supply is reaching its end of life or is operating in an environment exceeding the specified limits. This signal is to be asserted in parallel with LED turning solid Amber or blink Amber.
5.4 PS-ON INPUT SIGNAL (PIN: A21: PS-ON)
The PS-ON signal is required to remotely turn on/off the power supply. PSON# is an active low signal that turns on the +12V power rail. When this signal is not pulled low by the system, or left open, the outputs (except the +12VSB) turn off. This signal is pulled to a standby voltage by a pull-up resistor internal to the power supply.
5.5 PWOK OUTPUT SIGNAL (PIN A25: PWOK)
PWOK is a power OK signal and will be pulled HIGH by the power supply to indicate that all the outputs are within the regulation limits of the power supply. When any output voltage falls below regulation limits or when AC power has been removed for a time sufficiently long so that power supply operation is no longer guaranteed, PWOK will be de-asserted to a LOW state. See Table: for a representation of the timing characteristics of PWOK. The start of the PWOK delay time shall inhibited as long as any power supply output is in current limit.
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tech.support@psbel.com Signal Type Open collector/drain output from power supply. Pull-up to 3.3VSB located in the power supply. PWOK = High Power OK PWOK = Low Power Not OK MIN MAX Logic level low voltage, Isink=400uA 0V 0.4 V Logic level high voltage, Isource=200uA 2.4V 3.46 V Sink current, PWOK = low 400 uA Source current, PWOK = high 2 mA PWOK delay: Tpwok_on 100ms 500 ms PWOK rise and fall time 100 usec Cold_Redundancy_Config (D0h) Value State Description 00h Standard Redundancy (default power on state) Turns the power supply ON into standard redundant load sharing more. The power supply make sure no other PSU enter Smart_On mode. 01h Cold Redundant Active 1 Defines this power supply to be the one that is always ON in a cold redundancy configuration. 02h Cold Standby 1 1 Defines the power supply that is third to turn off in a Smart On configuration (800ms later) and first to turn on as the load increases. 03h Cold Standby 2 1 Defines the power supply that is second to turn off in a Smart On configuration (600ms later) and second to turn on as the load increases. 04h Cold Standby 3 1 Defines the power supply that is first to turn off in a Smart On configuration (400ms later) and third to turn on as the load increases.
5.6 SMART ON CONTROL (PIN B22: ENABLE BY SYSTEM)
Before enabling Smart On function, make sure pin B22 (SMART ON) on output golden finger of each PSU is connected together. When the pin is HIGH in the Smart On mode, the slave power supply will enter the Smart Standby mode if system total loading under PSU’s pre-set load level. When the pin is LOW in the Smart On mode, the Smart Standby mode power supplies will work in normal redundancy mode. Smart On feature supports 1+1, 2+1, and 3+1 redundant configurations. It uses the Power Management Bus manufacturer specific command area to define Power Management Bus commands for the system to communicate with the power supplies for enabling, configuration, and monitoring. The Power Management Bus manufacturer specific command MFR_SPECIFIC_00 is used to configure the operating state of the power supply related to Smart On. We will call the command SMART_ON_CONFIG (D0h). Below is the definition of the values used with the Read-Write Byte SMBus protocol with PEC. The trigger levels above may have a +/-10% tolerance for actual application. The default state of power supply is in Standard Redundancy mode. Power supply need to be re-specified a state whenever initial power on or the operating module predicts failure. The SMART_ON_CONFIG command will reset to 00h (Standard Redundancy) when any fault happened. And when an active power supply asserts, all parallel power supplies in Smart Standby mode shall power on immediately.
5.6.1 SMART STANDBY POWER SUPPLY OPERATING STATE
A power supply is put into Smart Standby whenever PSON# is asserted, SMART_RED# is de-asserted, and SMART_ON_CONFIG value is set to 02h, 03h, or 04h. In the Smart Standby mode the power supply must. 1. Power ON when Smart_On bus is driven LOW. 2. Keep PWOK asserted. 3. No Power Management Bus fault conditions reported via STATUS commands, any fault happen will made PSU leave smart standby mode. 4. Keep all fans rolling 5. LED is green blinking under normal conditions, amber blinking if any warning conditions happen.
5.6.2 POWERING ON SMART STANDBY SUPPLIES TO MAINTAIN BEST EFFICIENCY
configuration; will slightly change the load share threshold that the power supply shall power on at.
5.6.3 POWERING ON SMART STANDBY SUPPLIES DURING A FAULT OR OVER CURRENT CONDITION
supply asserts its SRED_OK# signal, all parallel power supplies in Smart Standby mode shall power on immediately.
- 12V OC warning/ fault happens
- 12V Smart ON UVP (lower than 11.8V)
- AC loss (Refer to section 3.1.3 table1, Power off voltage)
- Send 00h to Power Management Bus D0h command
- PSON# de-assertion happens
5.6.4 THE WAY TO ENABLE SMART ON FUNCTION
state and turn on main power if necessary. Figure 4. Power On/Off of power supplies in Smart on Mode (4xxxxW PSUs)
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tech.support@psbel.com PARAMETER DESCRIPTION / CONDITION CRITERION Electrostatic Discharge IEC / EN 61000-4-2 B Radiated Immunity IEC / EN 61000-4-3 A Fast Transient / Burst IEC / EN 61000-4-4 B Surge Immunity IEC / EN 61000-4-5 (Line to Earth: ±2 kV; Line to Line: ±1 kV) A Conducted Susceptibility IEC / EN 61000-4-6 A Power Frequency Magnetic Field EN 61000-4-8 Voltage Dips and Interruptions IEC / EN 61000-4-11 PARAMETER DESCRIPTION / CONDITION CRITERION Conducted & Radiated Emissions EN 55022 / CISPR 22 Class B 4 dB margin Voltage Fluctuation and Flicker IEC 61000-3-3 Class A Acoustical Noise Variable speed fan(s) incorporated TBD dBA
5.7 PRESENT_N# (Pin B24, OPTIONAL)
This signal is an active low type signal and is connected to the power supply’s output ground internally. The mating pin of this signal in system side should have a pull-up resistor which limit the max. current 4mA to go through from this signal pin to the power supply. A Low state on this signal indicates the PSU is physically presents.
5.8 PS-KILL (Pin B25, OPTIONAL)
The purpose of the PS_KILL pin is to enhance for hot swapping of the power supply. The PS_KILL pin on the power supply is shorter than the other signal pins. When a power supply is operating in parallel with other power supplies and then extracted from the system, the PS_KILL pin will quickly turn off the power supply main ouput +12V and prevent arcing of the DC output contacts. When the PS_KILL signal pin is not pulled down or left opened (power supply is extracting from the system), the power supply shuts down regardless of the condition of the PSON# signal. The mating pin of this signal in the system should be tied to ground. Internal to the power supply, the PS_KILL pin is connected to an internal +3.3V voltage through a 10k pull- up resistor. Upon receiving a LOW state signal at the PS_KILL pin, the power supply will be allowed to turn on via the PSON# signal. A LOW state on this pin by itself will not turn on the power supply +12V output. The below table shows the PS_KILL signal characteristics. SINGAL STATES +12V PS_KILL = LOW, PSON = LOW ON PS_KILL = HIGH or OPEN, PSON = LOW OFF PS_KILL = LOW, PSON = HIGH or OPEN OFF
6.1 IMMUNITY
The power supply shall comply with EN55024.
6.2 EMISSION
+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2020 Bel Power Solutions BCD.01072_A PARAMETER DESCRIPTION / CONDITION Agency Approvals
- UL/CSA 62368-1 (USA/Canada)
- EN/IEC 62368-1 (Europe/International)
- CB Certificate & Report, IEC62368-1 (Report to include all country national deviations))
- CE – Low Voltage Directive 2006/95/EC (Europe)
- Nordics -EMKO-TSE (74-SEC) 207/94
- GB4943- CNCA Certification (China) Leakage Current Max. 3.5 mA at 264 VAC, 60 Hz PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT Ambient Temperature Operating 0 +55 °C Non-Operating -40 +70 Humidity Operating, relative (non-condensing) 5 85 % Non-Operating, relative (non-condensing) 5 95 Altitude Operating 0 5 000 m Non-Operating 0 15200 m Mechanical Shock (non-operating) 50 G Trapezoidal Wave, Velocity change = 170 in. / sec Vibration (non-operating) sinusoidal 1.5G, pk-pk, 10 Hz-500 Hz–10 Hz, 0.5 octave/min; 2 sweeps per axis Vibration, (non-operating) random 2 Grms, 10 Hz-500 Hz, 60 mins per axis Thermal Shock (non-operating) 50 cycles, 30℃/min. ≧ transition time ≧ 15℃/min -40 +70 °C PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT Mean time between failures (MTBF) TA = 40°C, 75% load, according Telcordia SR-332 250 kh PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT Dimensions (W x H x L) 73.5 x 40.0 x 185 mm 2.89 x 1.57 x 7.28 in Weight 740 g 10.
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Figure 5. Mechanical Drawing
10.1 AIRFLOW DIRECTION
direction flows from the AC inlet side of the power supply to the card edge connector side (Fan out & forward Fan). being inserted or extracted from the system when the AC power cord is pulled into the power supply.
10.3 LED MARKING AND IDENTIFICATION
The power supply has a single bi-colored LED for indication of the power supply status. Green & Amber.
equipment used in hazardous environments, or nuclear control systems. the date manufactured. Specifications are subject to change without notice.
11.1 DC OUTPUT CONNECTOR PIN LOCATIONS
connector (equivalent to 2x25 pin configuration of the FCI power card connector 10035388102LF). Figure 6. Back DC output golden finger port