{"id":11262,"date":"2026-07-26T03:51:11","date_gmt":"2026-07-26T03:51:11","guid":{"rendered":"https:\/\/ic-vendor.com\/mlx90251eva-faa-230-bu-va-lf\/"},"modified":"2026-07-26T03:51:11","modified_gmt":"2026-07-26T03:51:11","slug":"mlx90251eva-faa-230-bu-va-lf","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/mlx90251eva-faa-230-bu-va-lf\/","title":{"rendered":"MLX90251EVA-FAA-230-BU.VA.LF"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The Melexis MLX90251 is a CMOS programmable ratiometric linear Hall effect sensor. All transfer parameters (VOQ, sensitivity, clamping, temperature compensation) are programmable via EEPROM in a 4-pin SIP package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u529f\u80fd<\/td>\nProgrammable Linear Hall Effect Sensor<\/td>\n<\/tr>\n
\u8f93\u51fa\u7c7b\u578b<\/td>\nAnalog Ratiometric Voltage<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n4.5V to 5.5V<\/td>\n<\/tr>\n
Supply Current<\/td>\n9 mA max<\/td>\n<\/tr>\n
Sensitivity Range<\/td>\n2.6 to 210 mV\/mT programmable<\/td>\n<\/tr>\n
VOQ Range<\/td>\n-100% to 200% VDD programmable<\/td>\n<\/tr>\n
Temp Compensation<\/td>\n1st and 2nd order programmable<\/td>\n<\/tr>\n
Max Supply Voltage<\/td>\n30V (overvoltage)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +85C (E grade)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n4-Pin SIP (VA package)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Quad switched Hall plate with chopper stabilization<\/li>\n
  • Full programmability via EEPROM (PTC interface)<\/li>\n
  • Ratiometric output eliminates supply variation error<\/li>\n
  • Programmable VOQ, sensitivity, clamping, filter, TC<\/li>\n
  • Unique Melexis ID + 24-bit user serial number<\/li>\n
  • Memory lock and parity protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Linear and rotary position sensing<\/li>\n
    • Current sensing via magnetic field<\/li>\n
    • Throttle and pedal position<\/li>\n
    • Non-contact angle measurement<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Melexis MLX90251 is a CMOS programmable ratiometric linear Hall effect sensor. All transfer parameters (VOQ, sensitivity, clamping, temperature compensation) are programmable via EEPROM in a 4-pin SIP package. Key Specifications Function Programmable Linear Hall Effect Sensor Output Type Analog Ratiometric Voltage Supply Voltage 4.5V to 5.5V Supply Current 9 mA max Sensitivity […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,42],"tags":[2538],"chip_brand":[284],"class_list":["post-11262","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-sensors","tag-mlx90251eva-faa-230-bu-va-lf","chip_brand-melexis"],"acf":{"brief_explanation":"Programmable linear Hall sensor, ratiometric, EEPROM, 4-SIP, -40 to 85C","date_code":"","package_case":"4-Pin SIP (VA package, 4.9x3.8mm)","in_stock":8304,"datasheet":"https:\/\/www.melexis.com\/-\/media\/files\/documents\/datasheets\/mlx90251-datasheet-melexis.pdf","price":"$1.82 @ 1ku","product_introduction":"The MLX90251EVA-FAA-230-BU.VA.LF from Melexis is a CMOS programmable ratiometric linear Hall effect sensor in a 4-pin SIP package. The quad switched Hall plate with chopper stabilized amplifier eliminates offset errors inherent in analog Hall devices. All transfer characteristics are fully programmable via EEPROM: output quiescent voltage (VOQ), sensitivity, clamping levels, temperature compensation (1st and 2nd order), output filter, and polarity. The ratiometric output tracks supply voltage variations, enabling direct ADC conversion without reference error.","working_principle":"The MLX90251 integrates a quad-switched Hall plate that alternately switches four Hall elements to cancel offset and stress-induced drift. The chopper-stabilized amplifier further reduces 1\/f noise. The Hall voltage is digitized, processed through programmable gain, offset, and temperature compensation stages in the digital domain, then converted back to analog via a DAC. EEPROM stores all calibration parameters, which are loaded into RAM on power-up. Programming is done through the output pin using Melexis PTC protocol.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>VDD<\/td>Power<\/td>Supply (4.5-5.5V)<\/td><\/tr>
      2<\/td>Test<\/td>-<\/td>Test\/programming pin<\/td><\/tr>
      3<\/td>VSS<\/td>Power<\/td>Ground<\/td><\/tr>
      4<\/td>VOUT<\/td>Output<\/td>Analog ratiometric output<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive throttle position sensor<\/li>
      • Non-contact rotary angle measurement<\/li>
      • Battery current sensing via conductor field<\/li>
      • Suspension height level sensor<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        MLX90316<\/td>Melexis<\/td>Triaxis 360-degree angle sensor<\/td><\/tr>
        HAL2425<\/td>Micronas<\/td>Programmable linear Hall equivalent<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11262","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=11262"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11262\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=11262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=11262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=11262"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=11262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}