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Power MOSFET drivers in smaller, thermally efficient packages Microchip’s MCP14A005X and MCP14A015X are designed to allow fast transitions with large capacitive loads; the SOT-23 and 2 x 2 mm DFN packages are among the smallest available for MOSFET drivers. They offer reduced power loss in the controller and conduction loss in the power MOSFET. MCP14A005X and MCP14A015X feature a new driver architecture for high-speed operation, the first in the MCP14A product line. The small packaging enables higher power densities and smaller solutions, while the design targets fast transitions and short delay times. Additionally, these MOSFET drivers include low input threshold voltages that are compatible with low voltage MCUs and controllers, while still maintaining strong noise immunity and hysteresis. The drivers’ low input threshold is compatible with various Microchip PIC microcontrollers (MCUs) and dsPIC Digital Signal Controllers (DSCs), even when operating at lower voltages, as low as 2.0V; the MOSFET driver boosts the output signals to 18V, reducing power loss in the controller and minimising conduction loss in the power MOSFET. The threshold levels balance the need for noise immunity with the ability to function with a wider variety of controller products, including Microchip’s devices. Microchip www.microchip.com Thermopile array sensor identifies movement, direction and multiple objects Panasonic Automotive & Industrial Systems has introduced what it believes to be the first surface mount thermopile array sensor. Grid-EYE features 64 thermopile elements in an 8x8 grid format that detect absolute temperatures by infrared radiation. Grid-EYE is able to measure actual temperature and temperature gradients, providing thermal images. It is possible to detect multiple persons, identify positions and direction of movement, almost independent of ambient light conditions without disturbing privacy as with conventional cameras. Cost-effective and compact solutions for contactless temperature measurement across the entire specified area can configured with very accurate results. A built-in silicon lens provides a viewing angle of 60°. Measurement values can be read out via I²C interface in 1 or 10 frames per second. An interrupt signal output delivers a quick response to time-critical events or additional energy saving capabilities in stand-by mode, offering a high degree of flexibility. Measuring 11.6 x 4.3 x 8.0mm, Grid-EYE arrays have an operating voltage of 3.3V or 5V and a typical current consumption of 4.5 mA (normal mode); 0.8 mA (stand-by mode); and 0.2 mA (sleep mode). Object temperature range is 0 to 80°C for the high gain amplification version and -20 to 100°C with low gain. Overall Temperature accuracy is ±2.5°C with an NETD (Noise Equivalent Temperature Difference) of ±0.5°C, depending on P/N. Compared to single element thermopile sensors and pyro-electric detectors, Grid-EYE sensors offer extended possibilities for detecting persons and objects, enabling advanced applications that include digital signage; security; lighting control; kiosks/atms; medical imaging; automatic doors, and people counting. Panasonic http://eu.industrial.panasonic.com Faceless oscilloscope connects via WiFi As the first digital storage oscilloscope geared towards tablet computers labels Belgian reseller Velleman NV its WFS210 oscilloscope. The 2-channel instrument takes the fact into account that some tablet computers do not have any cable interfaces: For data exchange with the backend computer it utilises a WiFi connection. The WFS210 offers two vertical signal channels, full auto setup function, signal markers, a hold function, and DVM functionality. The suitable x1/x10 probe has to be ordered separately. Input sensitivity can be selected in 12 steps between 5mV/div and 20V/div; the integrated signal ADC has a resolution of 8 bit. The signal bandwidth is 10 MHz for each one of the two channels. It also offers a sample rate of 2 x 10 Msps and a sample buffer of 4K per channel. Battery-powered, lightweight and compact (180 g, 100 x 100 x 35 mm), the WS210 fits into any briefcase and serves for quick measurements. The signal is displayed either via a tablet or a PC. Downloadable apps for iOS, Android 4.0 and PCs are available. Velleman NV www.velleman.eu Connector system feeds high currents to PCBs The Super Sabre power connector system is capable of deivering 34.0A per blade in a 7.50-mm pitch connector, fabricated with materials that have a withstand temperature of up to +125°C Molex designed the connector system for high-current applications where flexible wire-to-wire and wire-to-board configurations are required. Super Sabre power connectors are suited to automotive and commercial vehicle applications as ell as the appliance, medical, datacom and industrial control industries. Utilising proven and reliable Sabre Connector multi-beam technology, the Super Sabre Connector System helps solve these issues, providing 34.0A current per blade and withstanding +125°C operating temperatures.” For 10 to 12 AWG wires, the Connector System accommodates both wire-to-wire and wire-to-board configurations and is compatible with lead-free wave soldering and reflow soldering processes. Silver-plated, high-conductivity alloy terminals are used to minimise fretting corrosion concerns. The flat-blade terminal design with four independent points of electrical contact offers redundant, secondary current paths for long-term performance and reliability. In addition, terminal design provides a more reliable electrical connection than other terminal styles. The terminals are fully-isolated on both mating sides to ensure complete protection against damage or shorting. Positive latch and Terminal Position Assurance (TPA) features prevent terminal backout. Molex www.molex.com 46 Electronic Engineering Times Europe February 2015 www.electronics-eetimes.com


EETE FEB 2015
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