{"id":11140,"date":"2026-07-24T14:06:18","date_gmt":"2026-07-24T14:06:18","guid":{"rendered":"https:\/\/ic-vendor.com\/mc33771bsp1aer2\/"},"modified":"2026-07-24T14:06:18","modified_gmt":"2026-07-24T14:06:18","slug":"mc33771bsp1aer2","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/mc33771bsp1aer2\/","title":{"rendered":"MC33771BSP1AER2"},"content":{"rendered":"

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

The NXP MC33771BSP1AER2 is a SMARTMOS lithium-ion battery cell controller IC managing 7 to 14 cells with 0.8 mV maximum total voltage measurement error. It supports ISO 26262 ASIL-D functional safety and is AEC-Q100 qualified for automotive battery management systems.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Cell Count<\/td>\n7 to 14 cells<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n9.6 V to 61.6 V (75 V transient)<\/td>\n<\/tr>\n
Voltage Accuracy<\/td>\n0.8 mV max total error<\/td>\n<\/tr>\n
\u4ea4\u6d41<\/td>\n2.0 Mbps TPL or 4.0 Mbps SPI<\/td>\n<\/tr>\n
Balancing<\/td>\nOn-board 300 mA passive<\/td>\n<\/tr>\n
GPIO\/Temp<\/td>\n7 inputs<\/td>\n<\/tr>\n
Functional Safety<\/td>\nISO 26262 ASIL-D<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +105\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nHLQFP-64 (10x10mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • ISO 26262 ASIL-D functional safety<\/li>\n
  • 0.8 mV max total voltage measurement error<\/li>\n
  • 300 mA on-board passive cell balancing<\/li>\n
  • Daisy-chain up to 15 nodes<\/li>\n
  • Over\/under voltage and temperature auto-detection<\/li>\n
  • Open\/short\/leak fault diagnostics<\/li>\n
  • Hot plug-in support<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • 48V and high-voltage battery packs (HEV\/EV)<\/li>\n
    • E-bikes and e-scooters<\/li>\n
    • Energy Storage Systems (ESS)<\/li>\n
    • Uninterruptible Power Supply (UPS)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The NXP MC33771BSP1AER2 is a SMARTMOS lithium-ion battery cell controller IC managing 7 to 14 cells with 0.8 mV maximum total voltage measurement error. It supports ISO 26262 ASIL-D functional safety and is AEC-Q100 qualified for automotive battery management systems. Key Specifications Cell Count 7 to 14 cells Supply Voltage 9.6 V to […]<\/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":[13,29],"tags":[2411],"chip_brand":[168],"class_list":["post-11140","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","tag-mc33771bsp1aer2","chip_brand-nxp"],"acf":{"brief_explanation":"Battery cell controller, 7-14 cells, 0.8mV accuracy, ASIL-D, AEC-Q100, TPL\/SPI, HLQFP-64","date_code":"","package_case":"HLQFP-64 (10x10mm, EP)","in_stock":6012,"datasheet":"https:\/\/www.nxp.com\/docs\/en\/data-sheet\/MC33771B_SDS.pdf","price":"","product_introduction":"The MC33771BSP1AER2 is a lithium-ion battery cell controller IC from NXP designed for high-voltage battery management systems. It can manage 7 to 14 series-connected cells with industry-leading 0.8 mV maximum total voltage measurement error. The device supports both isolated 2.0 Mbps differential TPL communication and 4.0 Mbps SPI. On-board 300 mA passive cell balancing with diagnostics, 7 GPIO\/temperature sensor inputs, and a 5.0V\/5.0mA reference output are included. The device is fully ISO 26262 ASIL-D compliant and AEC-Q100 qualified.","working_principle":"The MC33771B measures individual cell voltages through a precision analog front end with a 14-bit ADC. Cell balancing is performed by internal 300 mA discharge FETs across each cell, with diagnostic monitoring. Communication to the host MCU is via either isolated TPL (Transformer Physical Layer) differential signaling or direct SPI. The device supports daisy-chaining of up to 15 nodes for large battery packs. Fault detection includes over\/under voltage, over\/under temperature, open wire, and leakage faults, all meeting ISO 26262 ASIL-D diagnostic requirements.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1-14<\/td>C0-C14<\/td>Analog<\/td>Cell voltage inputs<\/td><\/tr>
      15-21<\/td>GPIO0-6<\/td>I\/O<\/td>General purpose \/ temp sense<\/td><\/tr>
      22-25<\/td>SPI\/COM<\/td>Digital<\/td>Communication interface<\/td><\/tr>
      26<\/td>VPWR<\/td>Power<\/td>Main supply input<\/td><\/tr>
      27<\/td>VREF<\/td>Output<\/td>5.0V reference output<\/td><\/tr>
      28-64<\/td>Other<\/td>Mixed<\/td>Balance, diagnostic, power pins<\/td><\/tr><\/table>","application_scenarios":"
      • 48V mild-hybrid and high-voltage EV battery packs<\/li>
      • E-bikes and electric scooters<\/li>
      • Energy Storage Systems (ESS)<\/li>
      • Uninterruptible Power Supply (UPS)<\/li>
      • Grid-scale battery storage<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        MC33772B<\/td>NXP<\/td>Reduced cell count (up to 6)<\/td><\/tr>
        MC33771C<\/td>NXP<\/td>Next generation revision<\/td><\/tr>
        BQ79616<\/td>Texas Instruments<\/td>TI 16-cell controller<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11140","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=11140"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11140\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=11140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=11140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=11140"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=11140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}