The TET1500 Series is a 1500 W AC to DC power-factor-corrected (PFC) power supply that converts standard AC or HVDC power into a main output of 12 VDC for powering intermediate bus architectures (IBA) in high performance and reliability servers, routers, and network switches. High Efficiency, typ. 96% efficiency at half load Universal input voltage range: 90-305 VAC High voltage DC input: 180-400 VDC AC input with power factor correction Always-On standby output: o Programmable 3.3 V / 5 V (16.5 W) Hot-plug capable Parallel operation with active analog current sharing Digital controls for improved performance 3 High density design: 35 W/in Small form factor (W x H x L): 54.5 x 40.0 x 321.5 mm 2.14 x 1.57 x 12.66 in I2C communication interface for control, programming and monitoring with Power Management Bus protocol Over temperature, output over voltage and over current protection 256 Bytes of EEPROM for user information 2 Status LEDs: OK and FAIL with fault signalling High Performance Servers Routers Switches 2 TET1500 Series Product Family Power Level Dash V1 Output Dash Width Airflow Input A: C14 Socket 1 N: Normal TET Front-Ends 1500 W 12 V 54 mm AC: C16 Socket 2 R: Reverse AH: HVDC Socket 1 N Normal Airflow from Output connector to Input AC socket 2 R Reverse Airflow from Input AC socket to Output connector The TET1500 Series AC/DC power supply is combination of analog and DSP control, 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 derating of output power with input voltage and temperature, the TET1500 power supply 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, 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 I2C bus. The I2C bus allows full monitoring of the supply, including input and output voltage, current, power, and inside temperatures. The fan speed is adjusted automatically depending on the actual power demand and supply temperature and can be overridden through the I2C bus. Figure 1. TET1500 Series Block Diagram tech.support psbel.com