{"id":19821,"date":"2021-08-04T09:26:33","date_gmt":"2021-08-04T08:26:33","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=19821"},"modified":"2021-08-04T09:28:54","modified_gmt":"2021-08-04T08:28:54","slug":"3-3v-5v-sensors-simplify-inverter-converter-control-and-battery-management","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/3-3v-5v-sensors-simplify-inverter-converter-control-and-battery-management\/","title":{"rendered":"3.3V\/5V sensors simplify inverter\/converter control and battery management"},"content":{"rendered":"\n<p><strong><a href=\"http:\/\/www.melexis.com\" target=\"_blank\" rel=\"noreferrer noopener\">Melexis<\/a><\/strong> has revealed next-generation current sensors for automotive power-conversion applications.&nbsp;<\/p>\n\n\n\n<p>The advantages they deliver include increased resolution, optional 3.3V or 5V operation, and integrated over-current detection circuitry.<\/p>\n\n\n\n<p>The MLX91219 is a conventional hall current sensor. Using a ferromagnetic C-core, currents can be measured in the ranges of 200A to beyond 2000A. The MLX91218 is an IMC-Hall current sensor.&nbsp;<\/p>\n\n\n\n<p>With a flexible U-shield for crosstalk immunity, currents can be measured in the ranges of 200A to 2000A. Both sensors benefit from an increased signal-to-noise ratio (SNR), nearly two times greater than preceding generations.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2021\/08\/MLXPR215-MLX91219.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2021\/08\/MLXPR215-MLX91219.jpg\" alt=\"\" class=\"wp-image-19823\" srcset=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2021\/08\/MLXPR215-MLX91219.jpg 1000w, https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2021\/08\/MLXPR215-MLX91219-300x300.jpg 300w, https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2021\/08\/MLXPR215-MLX91219-150x150.jpg 150w, https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2021\/08\/MLXPR215-MLX91219-768x768.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n\n\n\n<p>Featuring high linearity, within \u00b10.3% full scale, the AEC-Q100 automotive-qualified sensors deliver enhanced accuracy for managing high-speed applications such as motor control, inverters and converters, but also redundant monitoring of battery-management systems (BMS). <\/p>\n\n\n\n<p>Minimal thermal drift, maintaining electrical offset within o5mV and sensitivity within \u00b11%, ensures accuracy over a wide temperature range.<\/p>\n\n\n\n<p>With the option of either 3.3V or 5V operating voltage, designers can use these sensors directly in circuits containing new 3.3V low-voltage microcontrollers or with legacy 5V devices.<\/p>\n\n\n\n<p>The MLX91218 and MLX91219 integrate over-current detection (OCD) circuitry typically implemented off-chip using an external window comparator, thereby further simplifying system design, saving board space, and reducing the bill of materials. The over-current threshold is set internally during the initial product configuration. The future SOIC8 packaged products have an additional pin that allows setting the threshold voltage with increased accuracy using an external voltage divider. Two indicator pins show the overcurrent status in relation to internal and external thresholds, with 2us and 10us response times respectively.<\/p>\n\n\n\n<p>Both sensor types provide a selectable analog output that allows the choice of a fixed output or ratiometric output that scales with the supply voltage. <\/p>\n\n\n\n<p>With 400kHz bandwidth and fast response time, they are suitable for circuits designed to operate at high switching speeds and fundamental frequencies to minimise phase delay in the control loop. <\/p>\n\n\n\n<p>In addition, the future MLX91218 incorporates Melexis\u2019 IMC integrated magnetic concentrator to optimise magnetic field shaping, which allows compact, lightweight shielding.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Melexis has revealed next-generation current sensors for automotive power-conversion applications.&nbsp; The advantages they deliver include increased resolution, optional 3.3V or 5V operation, and integrated over-current detection circuitry. The MLX91219 is a conventional hall current sensor. Using a ferromagnetic C-core, currents can be measured in the ranges of 200A to beyond 2000A. The MLX91218 is an &hellip;<\/p>\n","protected":false},"author":1,"featured_media":19822,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104,107],"tags":[9475,922],"class_list":["post-19821","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-electronics","category-power","tag-200-2000a-current-sensors","tag-melexis"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>3.3V\/5V sensors simplify inverter\/converter control and battery management - Engineer News Network<\/title>\n<meta name=\"description\" content=\"Melexis has revealed next-generation current sensors for automotive power-conversion applications\" \/>\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\/3-3v-5v-sensors-simplify-inverter-converter-control-and-battery-management\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3.3V\/5V sensors simplify inverter\/converter control and battery management - 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