Circular Connectors, LDO Basics, and Supercapacitors as a Backup Power Supply

See solutions from Vishay Siliconix, Knowles, CUI Devices, and more… [View Online]( [Digi-Key CORPORATION®]() [Flag] Search Now: [Search Now](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) Technical Newsletter - January 2023 Featured Articles [An Introduction to Circular Connectors and Cables](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) Due to their high performance in extreme conditions, circular connectors and cables find broad uses in industrial and factory automation applications, medical devices, security and defense systems, aerospace, and more. This article will primarily focus on standard circular connectors and cables, including their basic construction, designations and codes, selection criteria, and more. [Read More ►](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [How to Use a Single Supercapacitor as Backup Power for a 5 V Supply]() Once limited to mission-critical devices, backup power solutions are now in demand for a wide range of electronics applications in industrial, commercial, and consumer end products. While there are several options, the supercapacitor offers the most compact and energy‑dense solution as an energy reservoir when the main supply is interrupted. For example, when there's a mains power outage or when batteries are being swapped out. [Read More ►]() [How to Effectively Prevent Input Overvoltage of Switched-Mode Power Supply]() Input overvoltage is caused by a large fluctuation in the grid load. The variation range of power grid voltage amplitude varies greatly with the power grid capacity, the transmission and distribution equipment quality, the power consumption, and other factors. In cities and industrial areas with a sound power supply, the variation range is usually only about ±15% (with the maximum value not exceeding 264 VAC). [Read More ►]() [View All Articles ►](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) Digi-Key Product Solutions [CUI Devices](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Circular Connectors](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Circular Connectors](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) These circular connectors offer 3, 4, 5, 6, 8, and 12 pins in a range of male or female jack versions. The M8 and M12 connectors feature current ratings from 1.5 A - 4 A, voltage ratings from 30 VAC - 250 VAC, and are A‑coded for compatibility with 1 Gbit Ethernet or B‑coded for PROFIBUS. These IP67 panel‑mounted connectors offer a variety of thread pitches with several termination styles and fastening types. • IP67 rated • Rated voltage: 30 V - 250 V • Rated current: 1.5 A - 4 A [Learn More ►](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [ABLIC U.S.A. Inc.]() [2-Cell Battery Protection ICs](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [2-Cell Battery Protection ICs](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) S-82A2A/B/C and S-82B2A/B series 2‑serial‑cell battery protection ICs use an external current‑detection resistor to deliver high‑accuracy overcurrent protection not easily susceptible to battery voltage and temperature fluctuations. The S‑82A2A/B/C series features a protection IC that provides a charge/discharge overcurrent detection voltage accuracy of ±1 mV. • Operating current consumption: 3.0 µA typical, 6.0 µA maximum (Ta = +25°C) • Temperature range: Ta = ‑40°C to +85°C • Package: HSNT-8 (1616), SNT‑8A [Learn More ►](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Knowles]() [Premium Sound Reference Design](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Premium Sound Reference Design](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) The KN2 is a TWS reference design tuned to the Knowles‑preferred listening response curve for the best music listening experience; this reference design was a collaboration with a third‑party manufacturer of wireless earphones. KN2 features a state‑of‑the‑art hybrid driver paired with an advanced Bluetooth® system‑on‑chip (SoC) to deliver superior HD audio and active noise cancellation (ANC) performance along with other advanced features. • Turnkey reference design • Hybrid ANC with transparency mode • 8 hours battery life streaming [Learn More ►]() [Analog Devices](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Reversible Buck/Boost Regulator for Backup Power Applications](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Reversible Buck/Boost Regulator for Backup Power Applications](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) The MAX38888 is a capacitor bank or storage capacitor backup regulator. The regulator is designed to efficiently transfer power between a storage capacitor and a system supply rail in reversible buck and boost operations while using the same inductor. • 2.5 V - 5 V system output voltage • 0.8 V - 5 V supercap voltage range • Up to 2.5 A peak discharge current [Learn More ►](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [STMicroelectronics](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [3-Axis Accelerometer and Gyroscope](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [3-Axis Accelerometer and Gyroscope](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) The LSM6DSV16X is a system‑in‑package (SiP) featuring a 3‑axis digital accelerometer and a 3‑axis digital gyroscope with a triple core for processing acceleration and angular rate data on three separate channels with dedicated configuration, processing, and filtering. • ±2 g, ±4 g, ±8 g, and ±16 g full scale • Analog supply voltage: 1.71 V - 3.6 V • SPI/I²C/MIPI I3C® v1.1 serial interface [Learn More ►](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Murata Electronics](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Wireless Connectivity Module](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Wireless Connectivity Module](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) Type 2BZ high-performance modules are based on Infineon's CYW54590 combo chipset, which supports Wi‑Fi® 802.11a/b/g/n/ac 2x2 MIMO plus Bluetooth® 5.2 BR/EDR/LE up to 866 Mbps PHY data rate on Wi‑Fi and 3 Mbps PHY data rate on Bluetooth. • 2.4 GHz and 5 GHz Wi‑Fi plus Bluetooth module • High-performance capabilities for IoT • Supports standard SDIO interface for WLAN [Learn More ►](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Vishay Siliconix](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Analog Switches and Multiplexers]() [Analog Switches and Multiplexers]() These analog switches are available in all major configuration types and nearly 20 surface‑mount and through‑hole package types. Applications include data acquisition, industrial process control, test and measurement, and medical systems, as well as signal switching in cell phones, set‑top boxes, PDAs, media players, and video games. • Single- and dual‑supply operation • On-resistance values ranging from below 1 Ω - 10 Ω and above • SPST, SPDT, DPST, and DPDT switch configurations [Learn More ►](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Exceltec Inc.]() [Magnetic Circular Connectors]() [Magnetic Circular Connectors]() MAGNA-PLUG is a patent-pending industrial magnetic circular connector that reduces cable and probe breakages and allows for quick equipment changes and connection in manufacturing processes. This can reduce production downtime and increase savings. By simply pulling the cables the MAGNA‑PLUG connectors disconnect automatically, which means no more broken cables and sensors. • Self-mating and self‑aligning • Food-grade Teflon™ body (white) • Prevents wire and cable damage [Learn More ►]() [Laird Technologies EMI](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Exceptionally Soft Thermal Gap Filler](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Exceptionally Soft Thermal Gap Filler](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) Tflex™ RB300 gap fillers provide the ultimate in an ultra‑soft heat management solution. This product is targeted for applications where low thermal resistance is required for low‑pressure applications. With the absence of an adhesive, the thermal performance of the part is optimized. This gap filler is naturally tacky for easy application. • Thermal conductivity of 1.2 W/mK • Thickness: 0.5 mm - 5.08 mm • Flexibility allows the material to completely blanket components [Learn More ►](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) Additional Design Resources ► [EDA & Design Tools](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Conversion Calculator](=/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) [Product Training Modules](/MTQ0LU5DQi0wMzAAAAGJOvtFa8WXmXvr8Hkk4k9cofJLgMprhgQTufrSw9g32oRzh-B5-TMLrhCu6nqNCRScYTMNZvgOWAP_4q4=) Did you know? Digi-Key offers more than just the largest selection of electronic components. We are consistently adding services and online tools to make doing business easier. 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