Biomedical skin patches integrating multiple sensing, power, and reporting disciplines are receiving significant R&D effort. This final part concludes with an exposition of three more wearable biometric patches, a technology receiving considerable research attention for many obvious and not-so-obvious reasons. #7 Sensing stress levels Employing a somewhat different approach, a group at the California Institute […]
wearables
Energy harvesting PMIC family reduces circuit board space with inductor-less design
Nexperia is expanding its energy harvesting portfolio with the NEH71x0 power management IC (PMIC) family. This advanced PMIC line combines superior performance, cost-efficiency, and versatility, setting a new standard in sustainable design for low-power applications. Unlike competing products, these devices eliminate the need for an external inductor, significantly reducing circuit board space and bill-of-materials (BOM) […]
Converter boasts 90 percent efficiency at low current as low 10mA
Halo Microelectronics announces the launch of its latest addition to the buck converter product line, the HL7543, designed specifically for wearable devices, and its high efficiency makes it an ideal choice for battery-powered devices. The HL7543 features an input voltage range between 2.3V to 5.5V delivering up to 600mA high efficiency while maintaining over 90% […]
PMIC recharges battery or capacitor using energy harvesting
Nexperia announced an expansion to its range of Power ICs with Energy Harvesting solutions to simplify and enhance the performance of low-power Internet of things (IoT) and other embedded applications. The NEH2000BY is a high-performance power management integrated circuit (PMIC) that recharges a battery or storage capacitor using energy harvested from ambient sources, such as […]
High-efficiency 20-V N-channel MOSFET optimized for switching in small, thin devices
ROHM Semiconductor announced they have developed a compact, high-efficiency 20V N-channel MOSFET (RA1C030LD), optimized for switching in small, thin devices, including smartphones and wearables such as wireless earbuds and other hearable equipment. In recent years, the increasing sophistication and power requirements of compact devices have resulted in larger batteries that reduce the space available for […]
Electronic fuse ICs provide protection, sensing, and control features
Littelfuse, Inc. announced the new eFuse Protection ICs product line, a series of four versatile circuit protection devices. The eFuse Protection ICs utilize an innovative design that provides a wide range of power inputs (3.3V to 28V) and integrated protection. In addition to overvoltage protection, these electronic fuses protect against overcurrent, short circuit, inrush current, […]
Multilayer varistors withstand severe flexing, vibration, and temperature cycling
KYOCERA AVX has released the industry’s first automotive-qualified multilayer varistors (MLVs) equipped with the company’s patented FLEXITERM soft termination technology, which has been widely employed on a number of automotive-qualified multilayer ceramic capacitors (MLCCs) for more than 15 years. Designed to satisfy automotive industry demands for more robust component solutions, the new VCAS Series MLVs with FLEXITERM […]
Li battery charger IC features programmable charge parameters
Halo Microelectronics announced the release of its HL7090, a fully automatic and highly integrated lithium battery charging management IC with one switching charger, two linear chargers, and full-range programmable charge parameters through an I2C compatible interface. The HL7090 is a compact, flexible, and high-efficiency switching-mode charge management IC for single-cell Li-ion and Li-polymer batteries used […]
MOSFETS feature low on resistance
Nexperia has introduced the PMCB60XN and PMCB60XNE 30V N-channel small-signal trench MOSFETs, with market-leading RDS(on) in the ultra-compact wafer-level DSN1006 package, to make energy go further where space is tight and battery runtime is critical. Ideal for highly miniaturized electronics like smartphones, smart watches, hearing aids, and earphones, the new MOSFETs support the trend toward greater […]
New 24-V MOSFETs target wireless earphone battery apps
Magnachip Semiconductor Corporation announced that the company has unveiled a new 24V Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) for wireless earphone batteries. The new 24V MOSFET addresses the goal of battery designers for long battery life after a quick charge by reducing conduction loss. The core cell density of this new product has been increased by 30% […]
