MM912_637 | Battery Sensor with LIN | NXP Semiconductors

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Battery Sensor with LIN for 12 V Lead-Acid Batteries

MM912_637 Active

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The NXP® MM912_637 battery sensors are integrated battery monitoring devices that allow simultaneous measurement of current and voltage for precise determination of SOC (State of Charge), SOH (State of Health), and other parameters.

  • The integrated temperature sensor combined with the close proximity to the battery allows battery temperature measurement
  • Multiple application-specific hardware blocks reduce MCU overhead and related power consumption
  • Configurable low-power modes with automated battery state observation and sophisticated wake-up capability further reduce current consumption
  • The integrated LIN 2.1 interface allows communication and control of battery monitoring functions

Block Diagram

MM912

MM912 Block Diagram
Get diagram PDF

Features

CPU Core

  • S12 microcontroller with 128 kByte (J) or 96 kByte (I) Flash
  • 4 kByte Data Flash
  • 6 kBytes of RAM
  • Background debug (BDM)

Standard I/O

  • 8 x MCU General Purpose I/O including SPI functionality
  • 4 x 5V GPIO including one Wake Up capable High Voltage Input (PTB3/L0)
  • 16-Bit, 4 Channel - Timer Module (TIM16B4C)
  • 8-Bit, 2 Channel - Pulse width modulation module (PWM)

Application Specific Functions

  • Battery Voltage Measurement
  • Battery Current Measurement in up to 8 ranges
  • Accurate internal oscillator (for extended accuracy an external quartz oscillator may be used)
  • Normal and 2 low-power modes
  • Communication via LIN 2.1, LIN2.0 bus interface
  • Triggered wake-up from LIN and periodic wake-up
  • Signal Low Pass Filtering (Current, Voltage)
  • PGA (programmable low-noise gain amplifier) with automatic gain control feature
  • Current threshold detection and current averaging in standby/wake-up from low-power mode
  • External Temperature Sensor Option (TSUP, VTEMP)
  • Optional 2nd external voltage sense input (VOPT)
  • On-chip temperature measurement
  • Industry standard EMC compliance
  • Load supply voltage 3.5 V (Min), 28 V (Max)

Buy/Parametrics

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N true 0 PSPMM912_637en 4 Application Note Application Note t789 1 Data Sheet Data Sheet t520 1 Errata Errata t522 1 Selector Guide Selector Guide t528 1 en_US 2 1 6.0 English The MM912I637 (96 kB) and MM912J637 (128 kB) are fully integrated LIN Battery monitoring devices, based on SMARTMOS<sup>&#174;</sup> and S12 MCU Technology. 1306182864971715788077 PSP 6.8 MB None None documents None 1306182864971715788077 /docs/en/data-sheet/MM912_637D1.pdf 6806164 /docs/en/data-sheet/MM912_637D1.pdf MM912_637D1 N N 2021-07-01 MM912_637D1, Intelligent Integrated Precision Battery Sensor - Data Sheet /docs/en/data-sheet/MM912_637D1.pdf /docs/en/data-sheet/MM912_637D1.pdf Data Sheet N Y 980000996212993340 2022-12-07 pdf N en Jul 1, 2021 Data Sheet t520 Data Sheet Data Sheet Y N MM912_637D1, Intelligent Integrated Precision Battery Sensor - Data Sheet 2 4.0 English This document specifies the known issues of the MM912_637 device. The changes documented are exclusively related to the analog die within the dual die device. 1322869456833718789173 PSP 195.0 KB None None documents None 1322869456833718789173 /docs/en/errata/MM912_637ER.pdf 194985 /docs/en/errata/MM912_637ER.pdf MM912_637ER N N 2020-01-14 MM912_637, Silicon Mask - Errata /docs/en/errata/MM912_637ER.pdf /docs/en/errata/MM912_637ER.pdf Errata N Y 155452329886410597 2022-12-07 pdf N en Jan 14, 2020 Errata t522 Errata Errata Y N MM912_637, Silicon Mask - Errata false en_US en Application Note Application Note 1 3 1.0 English This document presents the main concepts behind the wheel location algorithm of the KWL software. The document details the approach used and explains how this led to the current implementation. 1485456925034706793334 PSP 6.7 MB Registration without Disclaimer None documents Extended 1485456925034706793334 /secured/assets/documents/en/application-note/AN5322.pdf 6749797 /secured/assets/documents/en/application-note/AN5322.pdf AN5322 documents Y N 2017-01-26 AN5322: TPMS Wheel Location Introduction and Main Concepts Application Note /webapp/Download?colCode=AN5322 /secured/assets/documents/en/application-note/AN5322.pdf Application Note N 645036621402383989 2024-01-19 pdf Y en Jan 25, 2017 645036621402383989 Application Note Y N AN5322: TPMS Wheel Location Introduction and Main Concepts Application Note Selector Guide Selector Guide 1 4 3 Chinese 1404924651029729642615zh PSP 1.2 MB None None documents None 1404924651029729642615 /docs/zh/product-selector-guide/INDCONTANLPRDFL.pdf 1202686 /docs/zh/product-selector-guide/INDCONTANLPRDFL.pdf INDCONTANLPRDFL documents N N 2016-10-31 Analog Automotive and Industrial Selector Guide /docs/zh/product-selector-guide/INDCONTANLPRDFL.pdf /docs/zh/product-selector-guide/INDCONTANLPRDFL.pdf Selector Guide N 553557935274807777 2025-01-05 zh Sep 18, 2014 553557935274807777 Selector Guide Y N 面向工业市场的模拟产品 - 简介 12 English For system designers who want more efficient motor operation with variable speed and sensorless control, NXP offers H-bridge, brushed and brushless DC motor drivers required to complete system design. 1404924651029729642615 PSP 1.2 MB None None documents None 1404924651029729642615 /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf 1202686 /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf INDCONTANLPRDFL documents N N 2016-10-31 Analog Automotive and Industrial Selector Guide /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf Selector Guide N 553557935274807777 2025-01-05 pdf N en Jan 29, 2021 553557935274807777 Selector Guide Y N Analog Automotive and Industrial Selector Guide false 0 MM912_637 downloads en true 1 Y PSP Y Y Application Note 1 /secured/assets/documents/en/application-note/AN5322.pdf 2017-01-26 1485456925034706793334 PSP 3 Jan 25, 2017 Application Note This document presents the main concepts behind the wheel location algorithm of the KWL software. The document details the approach used and explains how this led to the current implementation. Registration without Disclaimer /secured/assets/documents/en/application-note/AN5322.pdf English documents 6749797 None 645036621402383989 2024-01-19 Y /webapp/Download?colCode=AN5322 AN5322: TPMS Wheel Location Introduction and Main Concepts Application Note /secured/assets/documents/en/application-note/AN5322.pdf documents 645036621402383989 Application Note N en Extended Y pdf 1.0 Y N AN5322: TPMS Wheel Location Introduction and Main Concepts Application Note 6.7 MB AN5322 N 1485456925034706793334 Data Sheet 1 /docs/en/data-sheet/MM912_637D1.pdf 2021-07-01 1306182864971715788077 PSP 1 Jul 1, 2021 Data Sheet Data Sheet The MM912I637 (96 kB) and MM912J637 (128 kB) are fully integrated LIN Battery monitoring devices, based on SMARTMOS<sup>&#174;</sup> and S12 MCU Technology. None /docs/en/data-sheet/MM912_637D1.pdf English 6806164 None Data Sheet 2022-12-07 N /docs/en/data-sheet/MM912_637D1.pdf MM912_637D1, Intelligent Integrated Precision Battery Sensor - Data Sheet /docs/en/data-sheet/MM912_637D1.pdf documents 980000996212993340 Data Sheet N Y en None Y t520 pdf 6.0 N N MM912_637D1, Intelligent Integrated Precision Battery Sensor - Data Sheet 6.8 MB MM912_637D1 N 1306182864971715788077 Errata 1 /docs/en/errata/MM912_637ER.pdf 2020-01-14 1322869456833718789173 PSP 2 Jan 14, 2020 Errata Errata This document specifies the known issues of the MM912_637 device. The changes documented are exclusively related to the analog die within the dual die device. None /docs/en/errata/MM912_637ER.pdf English 194985 None Errata 2022-12-07 N /docs/en/errata/MM912_637ER.pdf MM912_637, Silicon Mask - Errata /docs/en/errata/MM912_637ER.pdf documents 155452329886410597 Errata N Y en None Y t522 pdf 4.0 N N MM912_637, Silicon Mask - Errata 195.0 KB MM912_637ER N 1322869456833718789173 Selector Guide 1 /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf 2016-10-31 1404924651029729642615 PSP 4 Jan 29, 2021 Selector Guide For system designers who want more efficient motor operation with variable speed and sensorless control, NXP offers H-bridge, brushed and brushless DC motor drivers required to complete system design. None /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf English documents 1202686 None 553557935274807777 2025-01-05 N /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf Analog Automotive and Industrial Selector Guide /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf documents 553557935274807777 Selector Guide N en None Y pdf 12 N N Analog Automotive and Industrial Selector Guide 1.2 MB INDCONTANLPRDFL N 1404924651029729642615 true Y Products

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  • BSPs and Device Drivers

    LIN2.x and SAE J2602 Stack

    FLEXERARev v4.6.3Jan 30, 20201 KBFSL_LIN_2.X_DRIVER
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Note: For better experience, software downloads are recommended on desktop.

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