STMicroelectronics Unveils VNI4140K Quad High-Side Solid-State Relay

STMicroelectronics (NYSE: STM) announced a new quad high-side intelligent power switch (IPS) – the VNI4140K – which is produced using the latest generation of ST’s VIPower(TM) technology to achieve a 50 percent saving in Rds(on) compared to earlier devices with the same die size.

The dramatic reduction in on-resistance and quiescent current saves energy through lower losses, with device power consumption lower than any competitive product, and achieved at lower cost. Power consumption is cut by 40% compared to earlier generation VIPower devices. Additionally, optimizing the trade-off between Rds(on) and die size allows the VNI4140K to be produced in a compact PowerSSO24 package, saving space in the application compared to competitive four-channel devices.

STMicroelectronics VNI4140K Quad High-Side Solid-State RelayIPS devices integrate a logic interface, drivers and protection circuits on the same chip as a power stage, to simplify system design and save space in high-power industrial applications such as programmable logic controllers (PLCs), NC (numerical control) machines, robotics and building automation systems.

ST’s intelligent power switches include a broad range of current and thermal protection features, with per-channel diagnostic bits and double thermal protection being new additions in the VNI4140K. In addition to over-temperature protection for safe operation when current draw is too high, the switch’s case over-temperature protection independently limits the PCB temperature. Channels restart independently after a case thermal shut-down, to limit the peak current.

The VNI4140K provides short-circuit and over-current protection, under-voltage shut-down, fast demagnetization for safe operation with large inductive loads, and protection against loss of ground. Diagnostic outputs are open drain to enable wired-OR configuration with other devices, and the logic inputs are 3.3V CMOS/TTL compatible. The switch conforms fully to the IEC 61131-2 standard for programmable logic devices.

Engineering samples of the VNI4140K, in the PowerSSO24 package, are available now, with volume production planned for January 2008. It is priced at $1.80 in quantities of 10,000 pieces.

About STMicroelectronics
STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today’s convergence markets. The Company’s shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2006, the Company’s net revenues were $9.85 billion and net earnings were $782 million.