CPC6314 325W DC Power Supply with IPMI Management

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The CPC6314 Hot-Swap DC Power Supply, part of our Advanced Managed Platform product offering, combines high power capacity with standards-based IPMI management capability and a reliable, modular package to become the power supply of choice for systems requiring DC power input. This CompactPCI® 3U x 8HP form factor supply is ideally suited for telecommunications, industrial automation and a variety of embedded computer applications where redundancy and hot-swap are required.

The input voltage range is -36 to -72VDC. Four outputs are capable of providing a total of 325W for +3.3VDC, +5VDC and ?12VDC with independent output regulation. This supply implements management functions such as system control, monitoring and status reporting through an IPMI-based intelligent communications bus. The CPC6314, meets the electrical and mechanical requirements of the PICMG® specification for CompactPCI systems. It uses a 47-pin Positronic power connector to provide efficient, effective, high current DC connectivity and is UL, CSA, IEC recognized TUV CB Certificate and CE Marked.

The ZT 6303 250-Watt Hot-Swap Power Supply is available as an AC alternative.

Highlights

Key Design Elements

Operation

The CPC6314 325W power supply utilizes switching technology to achieve its small size and large power output. An EMI-filtered input automatically accepts DC input voltages from -36 to -72VDC. Optionally, two or more power supplies can be used to implement an N+1 or N+N, load sharing, fault-tolerant system. An optional I2C hardware bus interface supports IPMI protocol for use in systems compliant with the PICMG 2.9 R1.0 specification.

Load Sharing and N+1 Redundancy

Two or more power supplies can share the same input source. With two supplies, each provides approximately 50 percent of the total system power during normal operation, although either is capable of powering the entire system (with a 325W load) in the event that the other should fail. This feature increases overall system reliability by sharing the load responsibilities. Additional power supplies may be used to implement true N+1 load sharing (i.e., a 650W system requires two power supplies, plus a third for redundancy).

Hot-Swap and Fault Tolerance

The CPC6314 power supply can be inserted or removed from a system employing a redundant power scheme without disturbing operation or reducing the reliability of any associated devices. Likewise, a failed power supply will not disturb the operation of the system if a redundant power supply is operating in the system.

Status LEDS

Two status LED indicators are visible from the front of the power supply. The green “INPUT” LED indicates that the input voltage is present. The green “INPUT” LED blinks when the power supply outputs are inhibited. Off indicates no input power is present. The amber “FAULT” LED indicates a failed power supply or input source.

Remote Sense

Remote sense on the +3.3V, +5V and +12V power supply outputs detects the voltages at a load remote from the power supply, compensating for connector, backplane and wiring voltage drops >0.25V.

Inhibit/Enable Inputs (INH#, EN#)

The INH# input signal on the rear connector turns off the outputs when grounded. EN# is used in conjunction with INH# to enable the power supply after all signals make contact with the mating connector. Outputs are disabled as the EN# pin is disengaged.

The source into a grounded connection is <150mA and the open circuit input voltage shall be <+15VDC. The signal is capable of sinking >2mA and maintaining the output voltage at <0.5VDC.

Current Share

Active current sharing is provided on the +3.3V, +5V and +12V power supply outputs with accuracy better than 10 percent of maximum rated load with up to eight supplies operating in parallel. Passive (droop response) current sharing is provided on the –12V output.

System Notification (DEG#, FAL#)

Two fault outputs are available on the rear connector for system notification. One output (DEG#) is an open collector/drain, low true signal that indicates the internal temperatures are within 10 (degrees) C of the thermal shutdown limit. The second output (FAL#) is an open collector/drain, low true signal that indicates when the supply has shut off the outputs due to a problem or the input voltage has been removed.

Overvoltage Shutdown

A 125 percent of nominal overvoltage condition on any of the outputs disables all outputs of the power supply. Outputs can be enabled, once the overvoltage condition is resolved, either with an IPMI command or by cycling the input power of the system.

Overtemperature Shutdown

The power supply automatically shuts down if an overtemperature event occurs. Overtemperature events causing a shutdown include a hardware-defined trip point or a trip point defined through an IPMI command. Once the supply cools down the supply restarts automatically.

Geographical Address Pins (GA0, GA1, GA2)

These pins configure the final IPMI address for the power supply. The geographical address pins are pulled up to +5VDC via a 10KW±10 percent resistor on each signal.

IPMI Interface

The CPC6314 provides an I2C hardware bus interface that supports IPMI protocol consistent with PICMG 2.9 R1.0. The IPMI controller is an event generator and is implemented as a dynamic SDR device.

The following sensors are supported:
• Temperature sensor(s) of critical areas
• DEG# thermal warning status
• FAL# signal status
• Output voltages (+3.3V, +5V, +12V, -12V) on the inboard side of the output isolation device with a resolution of 1 percent and an accuracy of ±2 percent
• Output currents with a resolution of 500mA and an accuracy of ±10 percent

The following functions are supported:
• IPMI controller reset
• Position (geographic) address
• Field Replaceable Unit (FRU) information
• Fault LED control commands
• Firmware upgradeable through the I2C bus

Specifcations

The CPC6314 is compliant with the following specifications:

• CompactPCI Core Specification, PICMG 2.0 R2.1
• CompactPCI Power Interface Specification, PICMG 2.11 R1.0
• CompactPCI System Management Specification, PICMG 2.9 R1.0
• Intelligent Platform Management Interface (IPMI) Specification, V1.5 Rev 1.1 and IPMB V1.0

Hold Up Time 2ms typical from -54VDC input
Electrical Input Voltage Range: -36 to -72VD
Input Filter Type: common and differential mode
Environmental
 
  • General: Complies with the requirements of GR- 63-CORE environmental criteria
  • Airflow: External airflow of 200lfm will be provided. The supply will be inverted in some applications and may also be mounted horizontally.
  • Operating Temperature: 0 to 50°C (0 - 70°C with linear derating of power to 50% of rated output between 50 and 70°C); short-term operation at 55°C for 96 hours at full load will be supported.
  • Storage Temperature:-20 to +85°C
  • Operating Altitude: Up to 13,000 feet (with ambient derating above 6,000 feet equal to the adiabatic lapse rate - approximately 2°C per 1,000 ft.)
  • Non-Operating Altitude: up to 40,000 feet
  • Humidity: <95% maximum, non-condensing
Input Current Maximum Continuous: 11.5A
Cold Start, Surge Maximum: <16A max. peak, - 36 to -72VD input
Output Specifications
  • Total Output Power (max. continuous @ 55°C with 200 LFM): 325W
  • Total Output Current:
    +3.3V @ 30.0A + 4/-2% output regulation (expected to meet or exceed 20A ±2 percent)
    +5V @ 40.0A + 4/-2% output regulation (expected to meet or exceed 25A, 2A min ±2 percent)
    +12V @ 5.0A +/-4% output regulation (expected to meet or exceed 5.5A ±2 percent)
    -12V @1.0A +/-4% output regulation (expected to meet or exceed 0.5A ±4 percent)
Ripple and Noise (measured at full load with 20MHz bandwidth)
 
+3.3V 50mV max P-P
+5V 50mV max P-P
+12V 240mV max P-P
-12V 240mV max P-P
Overvoltage Protection (+3.3V, +5V) 125 percent maximum
General Specifications Efficiency: 80 percent typical
Weight: 1.55 lbs (704 g)
Reliability
 
MTTR: One minute (based on module replacement)
Regulatory Compliance Designed for NEBS/ETSI

CE Certification
The CPC6314 meets intent of Directive 89/336/EEC for Electromagnetic Compatibility & Low-Voltage Directive 73/23/EEC for Product Safety. Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities:

Safety

  • UL 60950
  • CSA 60950
  • VDE to EN60950
  • CB Report
  • CE Certificate

EMI Compatibility ( DC-input model)

  • ETSI 300-386, Class A
  • EN55022 Radiated Emissions Class A
  • EN61000-4-2 ESD (Level 4)
  • EN61000-4-3 Radiated Immunity (Level 2)
  • EN61000-4-8 Magnetic Field Immunity (Level 2)

Safety Agency Ratings ( DC-input model)

  • Input Voltage: -36 to -75VDC
  • Input Current: 11.3A
  • Input Power: 406W
  • Isolation:
    • 1500VDC primary-secondary
    • 1500VDC primary-chassis
    • 500VDC secondary-chassis