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Power-One IBA controller manages both analog and digital POLs

Posted: 01 Dec 2005 ?? ?Print Version ?Bookmark and Share

Keywords:Power-One? ZM7300? Z-One? Digital IBA controller?

Z-One Digital IBA controllers

Power-One disclosed that its ZM7300 series of Z-One Digital IBA controllers are the first that can manage analog based systems (VRMs, linear regulators, point-of-load converters) as well as digital POLs, for a total of up to 32 devices simultaneously.

"The ZM7300 Series extends the open-architecture applications scope for Z-One Digital IBA to include supporting analog devices, as well as industry-standard I?C digital interfaces," said Steve Goldman, chairman and CEO. "This industry-first functionality has been incorporated into a semiconductor package that is less than one-sixth the size of our previous generation of digital power managers."

ZM7300 controllers, available in 4 to 32 node versions, provide "on-the-fly" reprogramming capabilities without users having to remove or replace any components on the board. Four independent enable outputs facilitate the control of output voltage, tracking and sequencing of the company's Z-Series POL converters, POL switching frequency and interleaving, and overcurrent, overvoltage and undervoltage protection thresholds. The controllers can also set power-good limits and optimize a POL's feedback compensation network. Monitored output voltage, current, and temperature for each Z-Series converter are stored in a buffer for host-system communications to facilitate system-level monitoring and remote diagnostics. Z-Series controllers can also monitor the intermediate voltage bus, accept external interrupts, and initiate crowbar protection.

An eight-node controller, in a 9-by-9 mm surface-mount package, is priced at approximately $8.50 each in 1,000 pieces. Production quantities of the RoHS-compliant ZM7300 models will be available in Q1.

- Vince Biancomano

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