Integrated 2kV-isolated quad output power SoC Akros Silicon introduces an isolated quad-output digital power SoC for isolated DC-DCs that are used in a industrial, datacom, automotive, medical, residential gateway, display and other distributed power applications. Built around Akros' GreenEdge digital isolation technology, the AS1454 eliminates the need for low-speed, bulky opto-couplers and integrates the functionality of up to eight separate ICs used in current implementations.
The chip`s built-in cross-isolation DC-DC timing management and digital power control delivers 92% DC-DC efficiency. The device integrates an input range of 9V - 72V, isolated primary converter, a 2kV isolation barrier, a buck or boost PWM controller, and two 2A buck regulators into a single device. Its input voltage range allows it to be used in 12VDC/24VDC/24VAC distributed power applications in industrial, building management, analog surveillance camera and automotive systems, as well as 48V distributed power applications in telecom, datacom, industrial and medical equipment requiring a 36V-72V input voltage range.
It offers selectable spread-spectrum clocking on all pulse width modulators (PWM) to reduce power-supply spectral noise by more than 15dB to lower the EMI signature of the switch-mode power supplies The AS14x4 product family consists of the AS1454, AS1444, AS1434 and AS1424 devices that cover the gamut of system power and feature requirements. The AS1454/34 are I2C-capable with system diagnostics and programmability features. AS14x4 products are available in footprint-compatible, 64-pin 9x9 QFN, Reduction of Hazardous Substance (RoHS)-compliant packages.