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design & products Power management chip targets non-rechargeable IoT The MAX14720 power management integrated circuit (PMIC) from Maxim Integrated Products will help designers optimize power and battery life for wearable medical/fitness and IoT applications running on primary cells. The MAX14720 PMIC is well suited for non-rechargeable battery (coin cell, dual alkaline) applications where size and energy efficiency are critical. In addition, an electronic battery seal extends shelf life by effectively disconnecting the battery prior to initial power-up. Integrating the functionality of five discrete devices—power switch, linear regulator, buck regulator, buck-boost regulator, and monitor—the MAX14720 reduces the bill of materials (BOM) and allows for much smaller form factor designs. While most battery PMICs operate from 3V, the MAX14720 runs from a primary cell and operates down to 1.8V. Its low quiescent current IP is critical for wearable applications because it can extend the runtime of the system significantly. The chip comes in a 25-bump, 0.4mm pitch, 2.26x2.14mm wafer-level package (WLP) and is specified over the -40-degree Celsius to 85-degree Celsius temperature range. Maxim Integrated www.maximintegrated.com Motion controller IC implements FOC in silicon The MCGP021 or Green Motion Controller (GMC) designed by Malaysia’s national research and development agency in information and communications technology, MIMOS, together with two local collaborators, My Technology and Emerald Systems, could potentially replace existing controllers for Permanent Magnet Synchronous Motors (PMSM). Thirteen joint Intellectual Properties were generated in developing the solution, which took two years to develop. While traditional solutions for controlling Permanent Magnet Synchronous Motors (PMSM) motor use software written for a microcontroller or microprocessor, MIMOS’ MCGP02I motion controller solution uses a new design approach in which complex mathematical calculations required for Field Oriented Control (FOC) of PMSM motors are directly implemented in silicon, with logic gates. Because when using the MCGP02I, there is no need to write firmware to implement the complex FOC algorithm, total development cost of the system can be greatly reduced. The programmability of all control parameters enables maximum flexibility and the quick design of control systems. The MCGP02I comes in a 40-pin small footprint QFN package with an integrated on-chip oscillator, ADCs, voltage references and regulator. MIMOS Self-aligning, floating board-to-board www.mimos.my connector offers ±0.6mm margin Hirose has designed a board-to-board connector with a highly reliable floating contact mechanism and self-alignment structure that simplifies assembly. Providing ±0.6mm floating in the X and Y axis directions, the FX20 Series absorbs mounting misalignment from multiple stacking connectors as well as PCB shrinkage caused by high temperatures. Well suited for industrial and vehicle applications, the FX20 Series has a highly reliable double beam contact structure that provides high shock and vibration resistance. Each contact beam has a different vibration characteristic and a different contact force, which widens the frequency range and reduces resonance. In this unique design, the first beam has a 0.5N contact force, while the second beam has a 0.35N contact force. The FX20 Series is resistant to sulfur dioxide, and operates in environments up to 105 degrees C, with thermal shock protection from -40 degrees C to +85 degrees C for up to 1000 cycles. The double beam contact structure also provides self-cleaning functionality. The connector has a compact 0.5mm pitch design that delivers a 0.5 Amp current per pin capacity, it requires only 120 positions to carry 60 Amps versus 200 positions from competing technologies. The connector is offered in a parallel stacking version with stacking heights of 15, 20, 25 and 30mm, as well as a right-angle mating type. Hirose Electric www.hirose.com FTDI enriches 8-bit FT51A MCU with comprehensive ecosystem In order to support its FT51A microcontroller unit (MCU), which is now in full production, FTDI Chip has introduced an array of board levels products. The objective of the FT51A-EVM evaluation module is to furnish engineers with a multitude of different functions through which they can get a better understanding of the FT51A MCUs application parameters - in particular its suitability for multi-sensor circuits. The module incorporates a 20x2 character LCD display (with an RGB backlight) plus a series of different sensor mechanisms through which various forms of data can be acquired. There is a heart-rate monitor (with filtered and amplified analogue output), a force sensitive resistor (which can measure the pressure applied by the users finger) and a SPI-enabled temperature sensor. The upstream and downstream USB ports permits cascading of multiple units. The module comes preloaded with dedicated firmware - allowing the full scope of the FT51As functionality to be benefited from while avoiding the need to create any code. Provision has been made within the modules IOs for communication with FTDIs FT800 Embedded Video Engine (EVE) modules, so that more sophisticated human machine interfaces can be added if necessary. FTDI Chip www.ftdichip.com 44 Electronic Engineering Times Europe January 2016 www.electronics-eetimes.com


EETE JAN 2016
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