To save space in wearable devices and medical patient monitoring systems, a dual-colour red and IR emitting diode is designed to save space. Vishay Semiconductors offers the diode in a compact 2.0 x 2.0 x 0.87mm package.
Weartech-Components & Hardware
TVS diode arrays protect smart watches and medical devices
Bidirectional discrete TVS diode arrays in the SP1026 series are designed specifically to protect sensitive electronic equipment from damage due to electrostatic discharges (ESD). Littelfuse uses Zener diodes fabricated using a proprietary silicon avalanche technology to protect each I/O pin to provide a high level of protection against ESD. The robust, general-purpose diodes can absorb repetitive ESD strikes at ±30kV (contact discharge, IEC 61000-4-2) without performance degradation, says the company. Each diode can dissipate 5A of 8 or 20micro sec surge current (IEC61000-4-5) with very low clamping voltages.
Fuel gauge eliminates battery characterisation to speed time to market
Incorporating an algorithm that converts raw measurements like battery voltage, current and temperature in state of charge (%), absolute capacity (mAhr) and time-to-empty, time-to-full (while charging) values, the ModelGauge m5 standalone fuel gauge has been announced by Maxim Integrated.
Audio jack detector and analogue switch are used in portable applications
Offering a space-saving alternative to miniQFN10 and WCSP devices, the Vishay Siliconix DG2592 audio jack detector and DG2750, low voltage, dual SPDT analogue switch have a slim profile of just 0.35mm and measure 1.4 x 1.8mm. Typical miniQFN10 and WCSP packages feature profiles of 0.55 mm. The thin miniQFN10 package of both devices is 36% thinner, allowing for slimmer handheld healthcare instruments, smartphones, tablets, portable media players, digital cameras, and wearable IoT devices. Compared to WCSP packages, the package is claimed to offer easier surface mounting and is better suited for the flexible PCBs commonly used in portable designs.
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