PET1300-12-054xA is a 1300 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 PET1300-12-054xA meets international safety standards and displays the CE-Mark for the European Low Voltage Directive (LVD). High efficiency up to 94.0% Wide input voltage range: 90 264 VAC Active power factor correction Always-On 10 W standby output (3.3 V) Hot-plug capability Parallel operation with active current sharing Full digital control for circuit loop and power management 3 High density design: 30.25 W/in Compact form factor: 321.5 x 54.5 x 40 mm (12.66 x 2.14 x 1.57 in) Power Management Bus Communication Protocol for control, programming and monitoring Fully protected (OTP, OCP, OVP, SCP) 4K Bytes of EEPROM for user information 2 Status LEDs: FAIL and OK with fault signaling Approved to the latest edition of following Safety Standards: UL/CSA60950-1, IEC / EN 60950-1 High Performance Servers Networking Switches Routers belfuse.com/power-solutions PET1300-12-054xA 2 PET 1300 - 12 - 054 x A Product Family Power Level Dash V1 Output Dash Width Airflow Input N: Normal PET Front-Ends 1300 W 12 V 54 mm A: AC R: Reverse The PET1300-12-054xA 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 PET1300-12-054xA 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 an analogue solution MCU is used to communicate with DSP chip on secondary side. 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 hence it is ideally suited for operation in redundant power systems. The always-on standby output with voltage level (3.3 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 2 power 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+ Analog V1Sense- Digital Digital Prim Prim Sec I2C Communication Bus Controls Controls Controls APS Logic Signals Figure 1. PET1300-12-054xA Block Diagram tech.support psbel.com belfuse.com/power-solutions PWM PWM