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Wireless MCUs draw only 18mA when transmitting at +10 dBm, 50nA in standby Silicon Labs has expanded its family of 8-bit Si10xx wireless microcontrollers (MCUs) with two new options optimized for both cost-sensitive and performance-intensive designs. By combining the company’s energy-efficient 8051 MCU technology with its sub-GHz EZRadio and EZRadioPRO transceivers in a 5x6mm QFN single-chip solution, the Si106x and Si108x wireless MCUs support worldwide frequency bands from 142 to 1050MHz with low-power sleep and active modes for extended battery life. The devices feature a priority crossbar decoder that gives designers complete control over a variety of functions including a 10-bit analogue-to-digital converter, dual comparators, four 16-bit timers as well as UART, SPI and I2C serial interfaces. This flexible crossbar configurability eliminates the trade-offs that often must be made with small packages. The EZRadioPRO transceiver offers a higher sensitivity of -126 dBm and a higher output power of +20dBm for long-range applications. Its 60 dB adjacent channel selectivity with 12.5 kHz channel spacing ensures robust operation in harsh RF conditions. The EZRadioPRO transceiver offers frequency coverage in all major bands up to 1050 MHz and supports data rates from 100 bps to 1 Mbps. The devices are available with flash memory scaling from 8 to 64kB, and 768 bytes to 4kB of RAM. Silicon Labs www.silabs.com AC/DC medical power supply saves energy Mean Well has introduced a 600 W AC/DC medical enclosed type power supply in response to the high wattage requirement of reliable medical power supplies. The MSP-600 series comply with international medical safety regulations (MOOP level) and feature with low leakage current (</=300 μA at 264 VAC), hence, they provide power solutions for non-patient contact medical applications. Thes units also possess no load power consumption under 0.8 W, five years warranty, and EMI Class B level compliance so they can be used in all kinds of ‘green mode’ medical equipments or electric devices and fulfill the energy-saving requirements for end systems. The unit takes an universal 85 to 264 VAC input and provides 3.3V to 48V output voltage options and possesses up to 89% of high efficiency. It can be forced air cooling by built-in DC fan for full load operation at -40°C to +50°C ambient temperature, and even up to +70°C by suitable derating. Other standard functions include protections for short circuit, overload, over voltage, and over temperature, 300 VAC input surge immunity for 5 seconds, remote ON/OFF control, remote sense, fan ON/OFF control, and DC OK signal output. In addition, to meet the requirement of higher wattage application, the models of MSP-600-24/36/48 equipped with parallel function and can be operated up to four units in parallel. MSP-600 series comply with global medical certificates per UL/ CUL/ CB/ CE that ensure users’ safety. MEAN WELL www.meanwell.com 800 MIPS dual-core floating point MCUs have low latency for real time control Texas Instruments has launched a new family of dual core 32bit microcontrollers for real time applications. The C2000 Delfino 32bit F2837xD microcontrollers have dual-core C28x processing capabilities and dual real-time control accelerators, also known as control law accelerators (CLAs), from 800 MIPS of low latency floating-point performance. Designers can also reduce complexity by consolidating multiple embedded processors into a single MCU for applications requiring real-time signal analysis, such as high-end servo drives, solar central inverters, industrial uninterruptible power supplies (UPS) and more. Customers can precisely control and monitor multiple feedback inputs simultaneously with the Delfino F2837xD MCU using powerful analog peripherals integrated on-chip. By providing four independent 16-bit analog-to digital converters (ADCs), the F2837xD MCU is able to precisely and efficiently manage multiple analog signals, which enables overall system throughput for solutions such as the monitoring of three-phase motors. Designers can also safely shut down their motors with the integrated windowed comparators, which provide critical power stage protection, while the sigma delta demodulators allow direct interface to isolated converters providing noise immunity for the MCU. The Delfino F2837xD MCUs are the first devices in a series of innovative C2000 MCUs that will be pin- and software-compatible and provide varying performance ranges capable of addressing different performance requirements in a product line. The microcontrollers eliminate the need for multiple embedded processors with 800 MIPS combined performance from dual C28x cores and dual CLAs and offload main CPUs (C28x cores) from demanding control loop analysis with two real-time control accelerators, or control law accelerators (CLAs), creating additional bandwidth, allowing the main processor to focus on system diagnostics or applications management. Texas Instruments www.ti.com Infrared (850 nm) LED chip offers high photoelectric efficiency EPISTAR LAB has developed an infrared (850 nm) LED chip which has achieved a wall plug efficiency of 75% with an operating current of 40 mA and greater than 70% at 350 mA. The SFPN42 is a 1x1mm² chip offering power that exceeds 1W and has reached 1027mW with the operating current of 1A which provides the LED chip with energy saving and eco friendly benefits. The infrared products are targeted at the security monitor, smart touch panel and wireless communication systems. EPISTAR LAB www.epistar.com www.electronics-eetimes.com Electronic Engineering Times Europe January 2014 47


EETE JAN 2014
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