New-Tech Europe | June 2017
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Characteristics shared by the three series are their dust proof construction and stable output characteristics in harsh environments. A rotational angle of 360 degrees is provided and wide operating temperature ranges of up to -40 to +120°C are tolerated in the case of the PHS11. All of the TT Electronics PHS rotational sensors can be hand or wave soldered and feature long life characteristics of greater than a million cycles, or at least 300,000 in the case of the PHS04 with a 500,000 cycles option available. They are small sized, the PHS11 boasts an ultra thin height of 2.2mm and the PHS04 measures just 4 x 5mm in length and width. Exhibiting a commitment to and an ability to respond to customers’ specific needs and applications, TT Electronics is able to customise the sensors’ shaft hole diameters for the PH07 and PHS11 ranges. Rotor types can also be customised from D to H type, as well as electrical output angles and linearity tolerances for super-accurate sensing applications. Applications for the PHS series are to be found across industrial, medical and transportation markets, and specific ones include robot joint angle control, game controllers, motor drive units, 3D printers, intelligent surveillance camera positioning, rotary angle sensors, electric motor-driven bicycles, HAVC sensors, patient monitoring systems, medical diagnostic devices, dental chair positions, car audio and shift-by-wire gearshift systems. TT Electronics’ PHS04 and PHS07 are supplied in trays or boxes and the ultra slim PHS11 sensors are supplied in tape and reel form. For further information on the PHS family and product selector visit: www.ttelectronics. com/sensors/rotary-position-sensors-potentiometric/ hollow-shaft-potentiometers.
Intersil Introduces Smallest Footprint and Highest Efficiency PMIC for Application Processors, GPUs, FPGAs and System Power Intersil, a subsidiary of Renesas Electronics Corporation (TSE: 6723), today introduced a highly integrated programmable power management IC (PMIC) that delivers 91% efficiency at 1.1V output voltage for application processors, GPUs, FPGAs and high- performance system power. The new PMIC’s low RDS(on) MOSFETs and programmable PWM frequency allows designers to use fewer low-profile external components, enabling a 50mm2 power-supply that is 40% smaller than competing solutions. The ISL91211 triple/quad output PMIC is ideal for smartphones, tablet computers, solid-state drives, networking and wireless Internet of Things (IoT) devices powered by single- cell Lithium-ion (Li-on) batteries, or 2.5V – 5.5V power supplies. The ISL91211 leverages Intersil’s latest R5™ modulation technology to provide the industry’s fastest single-cycle transient response and highest switching frequency (4MHz) during load transients. Quiescent current is only 62μA while the ISL91211 is regulating the output voltage. The PMIC’s superior light load efficiency, regulation accuracy and fast dynamic response prolong battery life. The ISL91211 PMIC includes highly efficient synchronous buck converters capable of multiphase and single-phase operation while delivering up to 5A per phase of continuous output current. The PMIC’s four integrated buck controllers dynamically reconfigure their power stages to address a wide range of applications with high efficiency and high output power. Precise current sensing allows the ISL91211 to automatically and smoothly add or drop phases to optimize power efficiency, and provide overcurrent protection without requiring DCR or resistor sensing circuits at the inductor. “The latest generation of application processors requires a new PMIC modulation architecture that can dramatically shrink solution size and increase efficiency,” said Andrew Cowell, senior vice president of Mobile Power Products at Intersil. “The ISL91211 employs Intersil’s new R5 modulator to deliver blazingly fast transient performance and everything designers
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