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8W wireless power receiver outputs 3 to 7V Integrated Device Technology’s wireless power receiver IC, the P9027, is a magnetic induction receiver that boasts 80 percent peak system level efficiency and improved overall thermal performance. Supporting the Wireless Power Consortium’s Qi standard, the P9027 is an 8 Watt receiver measuring approximately 37 square millimeters and requiring six fewer capacitors than competitive products. The result is less board space and a lower bill of materials cost. The device’s proprietary alignment guide optimizes inductive coupling with the transmitter to maximize coil-to-coil power efficiency. The 3 V to 7 V adjustable output voltage range is capable of driving a variety of downstream power management ICs, while proprietary foreign object detection (FOD) ensures safe operation in the presence of metal objects. IDT www.idt.com Multi-channel load sink driver consumes 12x less power Diodes Incorporated has introduced a 7-channel relay and inductive load sink driver that claims to consume 12 times less power while offering a direct replacement to the industry-standard device. The ULN2003V12 7-channel relay and inductive load sink driver directly replaces the industry-standard ULN2003A from other vendors, while consuming 12 times less power. A 4-channel version, the ULN2003F12, is also offered; this provides a smaller footprint solution for when fewer output channels are required, such as when driving low-voltage stepper motors. Target end-markets for these devices include domestic appliances like washing machines and dishwashers. The ULN2003V12 and ULN2003F12 both support 3.3 V to 5 V CMOS logic inputs, making them compatible with a wide range of microcontrollers and logic devices. They also both integrate an input RC snubber circuit, which improves performance in noisy operating conditions, and an internal input stage pull-down resistor to simplify the use of tri-state input logic. The use of low-output impedance drivers minimizes on-chip power dissipation while still supporting output pull-up voltages up to 20 V. The devices feature low, 25 μA/channel supply current and outstanding ESD performance of 4 kV HBM, making them suitable for industrial applications. A feature of the ULN2003V12 and ULN2003F12 devices is that each output is connected in a common-cathode configuration via internal freewheeling diodes to the COM pin. This provides an increased current sink capability by combining several adjacent channels in parallel. For example, under typical conditions the ULN2003V12 can handle a 1 A load current when all seven channels are connected in parallel. Miniaturized packages help reduce board space requirements, with the ULN2003V12 available in SO-16 and TSSOP-16 packages, while the ULN2003F12 is offered in a U-DFN3030-10 package. Diodes Incorporated www.diodes.com Low power, USB Type-C charger and device reference designs Lattice Semiconductor has used its programmable-device platform to create three low power, online solutions for USB Type-C that are intended to reduce development time/risk, and expedite introduction of USB Type-C implementation in consumer and industrial devices The three freelydownloadable reference designs that enable designers working in consumer, industrial and other sectors to quickly implement the cable detect and power delivery functions required to unlock the new capabilities of Type-C including 100W power, 20Gbps bandwidth, reversibility and flexibility. The three solutions offered by Lattice address both Cable Detect (CD) and Power Delivery (PD) functions and deliver: CD/PD targeting chargers; CD/PD for devices such as laptops, docks, dongles handheld industrial; CD/PD-Phy for devices such as smart phones and tablets. The downloadable reference designs include: Schematic; BOM; Pin-list; Bitstream; and Code to allow Policy Engine customisation. The designs are based on Lattice’s iCE40 ultra-low power, miniature and low cost FPGA families. Lattice Semiconductor www.latticesemi.com Sine-wave, motor pre-driver ICs cut vibration and power consumption A series of eight single-phase BLDC motor pre-driver ICs is intended for use in high-current cooling fan applications such as PC servers and home appliances, including fridges. The TC78B006 series reduces vibration and noise by using a digital-controltype sine wave drive. Integrated predrive circuitry enables the devices to drive external p-channel and n-channel MOSFETs and minimises the number of external components needed to drive motors. A power saving standby function reduces power consumption by cutting power supply to the Hall element magnetic sensor used to detect rotor position and rotation speed, whenever the motor is in standby mode. Within the TC78B006 series, the TC78B006FNG, TC78B006AFNG, TC78B006FTG and TC78B006AFTG ICs feature PWM duty input control, while the TC78B006BFNG, TC78B006CFNG, TC78B006BFTG and TC78B006CFTG offer analogue voltage input control. Rotation speed direction output is featured on the FNG, BFNG, FTG and BFTG ICs, while the AFNG, CFNG, AFTG and CFTG offer lock detection output. The entire TC78B006 series has an operating voltage of 3.5 to 30V, quick start function, thermal shutdown, lock protection and auto-restart. There are two package types: a 16pin SSOP measuring 5.5×6.4×1.6 mm, for the FNG, AFNG, BFNG and CFNG ICs or 16pin QFN, which measures 3×3×0.7 mm for the FTG, AFTG, BFTG and CFTG. S Toshiba Electronics Europe www.toshiba.semicon-storage.com www.electronics-eetimes.com Electronic Engineering Times Europe March 2015 39


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