The PFE1100-12-054xA is a 1100 Watt AC to DC power-factor- corrected (PFC) power supply that converts standard AC mains 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 PFE1100-12-054xA meets international safety standards and displays the CE-Mark for the European Low Voltage Directive (LVD). Best-in-class, 80 PLUS certified Platinum efficiency Wide input voltage range: 90-264 VAC AC input with power factor correction Always-On 16.5 W programmable standby output (3.3/5 V) Hot-plug capable Parallel operation with active digital current sharing Full digital controls for improved performance 3 High density design: 25.6 W/in Small form factor: 321.5 x 54.5 x 40 mm (12.66 x 2.14 x 1.57 in) 2 I C communication interface for control, programming and monitoring with PSMI and Power Management Bus protocol Overtemperature, output overvoltage and overcurrent protection 256 Bytes of EEPROM for user information 2 Status LEDs: AC OK and DC OK with fault signaling High Performance Servers Routers Switches 2 PFE1100-12-054xA PFE 1100 - 12 - 054 x A Product Family Power Level Dash V1 Output Dash Width Airflow Input N: Normal PFE Front-Ends 1100 W 12 V 54 mm A: AC R: Reverse The PFE1100-12-054xA AC/DC power supply is a fully DSP controlled, highly efficient front-end power supply. It incorporates resonance-soft-switching technology and interleaved power trains to reduce component stresses, providing increased system reliability and very high efficiency. With a wide input operational voltage range and minimal linear derating of output power with input voltage and temperature, the PFE1100-12-054xA 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 paths. 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, with selectable voltage level (3.3/5.0 Volts), 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 front-panel LEDs. In addition, the power supply can be controlled and the fan speed set via the 2 2 I C bus. The I C 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 2 demand and supply temperature and can be overridden through the I C bus. L V1 DC Vsb VsbSense+ Filter PFC Buck VsbSense- DC N GND PE Aux EEPROM Converter FAN V1Sense+ V1Sense- Digital Digital I2C Prim Sec Communication Bus Controls Controls APS Logic Signals Figure 1. PFE1100-12-054xA 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 MIN MAX UNITS Vi maxc Maximum Input Continuous 264 VAC tech.support psbel.com PWM PWM