{"id":30625,"date":"2025-12-23T09:00:00","date_gmt":"2025-12-23T09:00:00","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=30625"},"modified":"2025-12-03T17:14:36","modified_gmt":"2025-12-03T17:14:36","slug":"microchip-halves-power-required-to-measure-how-muchpower-portable-devices-consume","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/microchip-halves-power-required-to-measure-how-muchpower-portable-devices-consume\/","title":{"rendered":"Microchip halves power required to measure how much power portable devices consume"},"content":{"rendered":"\n<p>Battery-operated devices and energy-restricted applications must track and monitor power consumption without wasting power in the process. To solve this challenge, Microchip Technology announces two digital power monitors that consume half the power of comparable solutions based on typical operating conditions at 1024 samples per second. The <a href=\"https:\/\/www.microchip.com\/en-us\/products\/amplifiers-and-linear-ics\/current-voltage-power-monitor-ics\"><strong>PAC1711 and PAC1811 power monitors<\/strong><\/a> achieve this efficiency milestone while also providing real-time system alerts for out-of-limit power events and a patent-pending step-alert function for identifying variations in long-running averages.<\/p>\n\n\n\n<p>The 42V, 12-bit single-channel PAC1711 and 16-bit PAC1811 monitors are housed in 8- and 10-pin Very Thin Dual Flat, No-Lead (VDFN) packages, respectively, that are pin- and footprint-compatible with the popular Small Outline Transistor&nbsp;(SOT23)-8 package. This compatibility simplifies second-sourcing for developers, while streamlining upgrades and integration into existing systems.<\/p>\n\n\n\n<p>\u201cUntil now, portable devices and a variety of energy-constrained applications have needed to burn a significant amount of valuable power to measure how much they are consuming,\u201d said Keith Pazul, vice president of Microchip\u2019s mixed-signal linear business unit. \u201cUnlike many existing solutions, Microchip\u2019s power monitors function as independent \u2018watchdog\u2019 peripherals, eliminating the need for the MCU to handle power monitoring tasks. These monitors allow the MCU or host processor to remain dormant until a significant power event occurs such as needing an LCD screen to power on.\u201d<\/p>\n\n\n\n<p>The PAC1711 and PAC1811 power monitors\u2019 step-alert capability keeps a running average of voltage and current values. If there is a significant, user-defined variation, it will notify the MCU to act on it. The devices keep a rolling average, and any new sample can trigger an alert. A slow-sample pin option is available, which can delay the power usage sampling to every eight seconds and further conserve power.<\/p>\n\n\n\n<p>An accumulator register in the power monitor can be used to manage logistical items, track system battery aging or time to recharge, and provide the short-term historical data for long-term power usage that the MCU can be programmed to act on. Both current monitor integrated circuits sense bus voltages from 0 to 42 volts and can communicate over an I<sup>2<\/sup>C<sup>\u00ae<\/sup> interface. They are well-suited for first- or second-source options in computing, networking, AI\/ML and E-Mobility applications.<\/p>\n\n\n\n<p><strong>Development Tools<\/strong><\/p>\n\n\n\n<p>The evaluation board is a Click board compatible with the MikroElektronika&#8217;s mikroBUS standard for host motherboard sockets. The Click board is used to evaluate the features and performance of the devices. Additionally, a Linux driver can be found on the product pages, providing the basic functionality and access to commonly used registers for making power measurements. Microchip also provides a generic C library for the PAC1711 and PAC1811 which includes examples of how they can be used with different MCUs from Microchip.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Battery-operated devices and energy-restricted applications must track and monitor power consumption without wasting power in the process. To solve this challenge, Microchip Technology announces two digital power monitors that consume half the power of comparable solutions based on typical operating conditions at 1024 samples per second. The PAC1711 and PAC1811 power monitors achieve this efficiency &hellip;<\/p>\n","protected":false},"author":1,"featured_media":30628,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104],"tags":[2732],"class_list":["post-30625","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-electronics","tag-microchip-technology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Microchip halves power required to measure how much power portable devices consume - Engineer News Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.engineernewsnetwork.com\/blog\/microchip-halves-power-required-to-measure-how-muchpower-portable-devices-consume\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Microchip halves power required to measure how much power portable devices consume - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"Battery-operated devices and energy-restricted applications must track and monitor power consumption without wasting power in the process. To solve this challenge, Microchip Technology announces two digital power monitors that consume half the power of comparable solutions based on typical operating conditions at 1024 samples per second. 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