Power interface module simplifies low-EMI design in ATCA

Extending the 3E Power Interface Module (PIM) range, Ericsson Power Modules has announced the PIM4610PD to the industry-standard, quarter-brick footprint family. The module has been optimised to simplify design in blade server applications based on ATCA and PICMG 3.7 systems. The module is suited to server and storage systems in any industrial, telecomms and data communications application that employs either distributed power or intermediate bus voltage architectures.

Low-EMI design techniques ensure that minimal external filtering is needed to meet the CISPR Class B EMC standards required for Information and Communications Technology systems, says the company. Ripple and noise characteristics have been minimised, while circuit design has been simplified leading to reduced component count and system costs without compromising performance.

The module operates over an input range of 36 to 75V. The module is also claimed to offer industry-leading high-power performance delivering 864W with a 54V input, 768W at 48V, and 600W at 37.5V. Efficiency performance is also claimed to be industry leading, offering up to 98.8% at 600W for the main unit.

Other features include digital monitoring capability via the PMBus, efficiency and high-power handling characteristics for applications where there is minimal airflow.

The PIM also offers built-in digital monitoring and an extensive range of energy-monitoring functionalities via its I²C/PMBus interface. There is protection against input transients, reverse polarity, over-temperature, over-current, input under-voltage and inrush current. A configurable feature enables a controlled shutdown and enables de-assertion of the ‘power good’ pin when it determines that input power is below a certain level, enabling the protection of semiconductor devices such as CPUs and FPGAs.

The module also has integrated hot-swap functionality and hold-up charge and discharge management. The inputs also include dual power feeds with OR’ing functionality and ‘enable’ signaling. Management power output is 3.3V and up to 7A and MTBF is 2.66 million hours, according to Telcordia SR-332 Issue 2, Method 1, and isolation of 2250Vdc, which meets the latest IEC/EN/UL62368-1 safety standard.

The module is available in the industry-standard quarter-brick format, measuring 57.9 x 36.8 x 21.33mm.

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