{"id":5670,"date":"2026-06-11T03:49:44","date_gmt":"2026-06-11T03:49:44","guid":{"rendered":"https:\/\/materialparts.com\/bq76pl455atpfctq1\/"},"modified":"2026-06-12T03:27:04","modified_gmt":"2026-06-12T03:27:04","slug":"bq76pl455atpfctq1","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/bq76pl455atpfctq1\/","title":{"rendered":"BQ76PL455ATPFCTQ1"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The BQ76PL455ATPFCTQ1 from TI is an AEC-Q100 automotive 16-cell battery monitor with passive balancing, UART interface, and OV\/UV protection in TQFP-80 for EV\/HEV battery packs.<\/p>\n

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\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nTQFP-80 (12x12mm)<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • See datasheet for complete specifications<\/li>\n
  • Industry-standard package<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial control<\/li>\n
    • Consumer electronics<\/li>\n
    • Communication equipment<\/li>\n
    • Power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BQ76PL455ATPFCTQ1 from TI is an AEC-Q100 automotive 16-cell battery monitor with passive balancing, UART interface, and OV\/UV protection in TQFP-80 for EV\/HEV battery packs. Key Specifications Package TQFP-80 (12x12mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Power management<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,42],"tags":[],"chip_brand":[138],"class_list":["post-5670","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-sensors","chip_brand-ti"],"acf":{"brief_explanation":"16-cell battery monitor, AEC-Q100, UART, TQFP-80","date_code":"","package_case":"TQFP-80 (12x12mm)","in_stock":12822,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/bq76pl455a-q1.pdf","price":"$15.37 @ 250+","product_introduction":"The BQ76PL455ATPFCTQ1 from TI is an AEC-Q100 automotive 16-cell battery monitor with passive balancing, UART interface, and OV\/UV protection in TQFP-80 for EV\/HEV battery packs.","working_principle":"The BQ76PL455ATPFCTQ1 is a 16-cell lithium battery pack monitor from Texas Instruments in TQFP-80, AEC-Q100 qualified for automotive applications. It monitors up to 16 series-connected battery cells with 14-bit ADC resolution, achieving +\/-2mV cell voltage measurement accuracy across the full temperature range (-40C to +105C). The device uses a switched-capacitor ADC architecture: an internal multiplexer sequentially connects each cell input to the ADC through a capacitor, measuring the differential voltage between adjacent cell taps. Each cell measurement takes 200us, and all 16 cells are measured in 3.2ms. The device also supports passive cell balancing: each cell input has an internal FET that can discharge the cell through an external resistor (typically 100-200 ohms), allowing equalization of cell voltages. The UART communication interface supports daisy-chain topology: up to 32 BQ76PL455 devices can be connected in series (monitoring up to 512 cells) using a single host UART port, with each device acting as a repeater for downstream devices. The isolation barrier between the communication high side and low side provides 2500Vrms galvanic isolation between battery modules. The device includes comprehensive diagnostics: wire-break detection (open-wire), multiplexer self-check, ADC self-test, register parity, and communication CRC. The GPIO pins can measure external NTC thermistors for temperature monitoring. The internal regulators provide 5V and 3.3V for external circuitry, reducing BOM. The -TPFCTQ1 suffix specifies TQFP-80, AEC-Q100 grade 1, automotive.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1-6<\/td>CELL0-CELL5<\/td>Analog<\/td>Cell voltage inputs 0-5 (differential, connect to battery cell terminals)<\/td><\/tr>
      7-12<\/td>CELL6-CELL11<\/td>Analog<\/td>Cell voltage inputs 6-11<\/td><\/tr>
      13-16<\/td>CELL12-CELL15<\/td>Analog<\/td>Cell voltage inputs 12-15<\/td><\/tr>
      17-20<\/td>VSENSE\/GPIO0-GPIO3<\/td>Analog\/I\/O<\/td>Current sense \/ general-purpose I\/O for temperature sensors<\/td><\/tr>
      21-24<\/td>COMMH\/COMML<\/td>I\/O<\/td>Isolated UART communication (high and low sides)<\/td><\/tr>
      25-32<\/td>VDD\/VSS\/REG50\/REGOUT\/DIAG<\/td>Power<\/td>5V and 3.3V regulators, diagnostics<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial control<\/li>
    • Consumer electronics<\/li>
    • Communication equipment<\/li>
    • Power management<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Texas Instruments<\/td>BQ76PL455ATPFCTQ1<\/td>TQFP-80<\/td>Same device, AEC-Q100<\/td><\/tr>
      Texas Instruments<\/td>BQ76952RHFR<\/td>TQFP-48<\/td>10-16 cell monitor, I2C\/SPI, newer<\/td><\/tr>
      Analog Devices<\/td>ADBMS6830BCPZ<\/td>LQFP-64<\/td>18-cell battery monitor, isoSPI<\/td><\/tr>
      NXP<\/td>MC33771CTP1AE<\/td>LQFP-64<\/td>14-cell battery monitor, TPL communication<\/td><\/tr>
      Renesas<\/td>ISL78714FRZ<\/td>TQFP-64<\/td>14-cell battery monitor, daisy-chain SPI<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5670","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=5670"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5670\/revisions"}],"predecessor-version":[{"id":6115,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5670\/revisions\/6115"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5670"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5670"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}