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Power supply supervisor IC adds protection features

Posted: 07 Jun 2006 ?? ?Print Version ?Bookmark and Share

Keywords:System General? SG6516? PC ATX? power supply? supervisor?

System General recently announced the latest desktop PC ATX power supply supervisor ICSG6516. According to the company, this IC comes with comprehensive supervision and redundant protection functions to protect power supplies against abnormal working conditions. Furthermore, the device provides two 12V over current protection functions, facilitating easy compliance with the Intel ATX 12V version 2.0 standard.

To further enhance its capabilities, System General said its new IC features over-current protection (OCP), over-voltage protection, under-voltage protection, fault protection and power-good functions. These protection features effectively prevent power supply lockups when facing variable voltage output levels, the company said.

In comparison to existing products, System General said the new device has a 1 percent precise VRI tolerance for accurate OCP trip point without the need for added variable resistance, thus increasing value without raising the customer's BOM and operating costs.

The product's IREF precision (5 percent) promises increased stability to the OCP trip points, hence to the overall stability of the power system. Additionally, the device has a robust surge/ESD protection capability at the board level. The ESD immunity levels pass 16KV/20KV while the surge immunity passes 3.5KV. Its performance not only complies with international CE safety regulation standards, but also provides double security for the power system, said the company.

"System General continues to extend its strength in developing new technologies in the power control market space," said Gary Lin, vice president for the company's Semiconductors Business Unit. "The SG6516 supervisor IC is designed to create a monitored environment with emphasis on safety and efficiency. Integrating all of the required voltage and current capabilities in one chip enables the entire system to operate with optimal protection against failure."

The SG6516 is suited for desktop PC power suppliers, industrial PC, game consoles, telecom infrastructure systems, and other applications that require power supplies with multiple voltage output supervision.

The SG6515 comes in a 14-pin DIP and a SOIC Pb-free package.

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