Battery Sensor with LIN for 12 V Lead-Acid Batteries

MM912_637

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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

Product Details

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Block Diagram

MM912 Block Diagram

MM912 Block Diagram
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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)

Product Longevity Program

Documentation

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4 documents

Design Resources

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Hardware

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4 hardware offerings

  • Test Accessories and Debugger

    USB Multilink Universal FX

    Multilink Universal FX is a high-speed,BDM/JTAG debug probe for Kinetis, LPC, S32, Qorivva MPC5xxx, MPC5xx/8xx, ColdFire, HC(S)12(X), S12Z, HCS08, RS08, DSC, 683xx, & HC1...
    USB Multilink Universal FX By P & E Microcomputer Systems, Inc Gold Partner
  • Test Accessories and Debugger

    CYCLONE LC

    Production programmer. Models support high-speed, low-cost, in-circuit flash programming, debugging, & test of many NXP 8-/16-/32-bit systems. Stand-alone or host-control...
    CYCLONE LC By P & E Microcomputer Systems, Inc Gold Partner
  • Test Accessories and Debugger

    USB Multilink Universal

    The USB Multilink Universal is an all-in-one BDM/JTAG debug probe for NXP Kinetis, LPC, i.MX RT, S32, HCS08, HC(S)12(X), S12Z, RS08, ColdFire V1/+V1, ColdFire V2-4*, Qori...
    USB Multilink Universal By P & E Microcomputer Systems, Inc Gold Partner
  • Test Accessories and Debugger

    CYCLONE FX

    Advanced Cyclone programmer. Models support high-speed in-circuit flash programming, debugging, and test of many NXP 8-/16-/32-bit MCUs. Enhanced speed/security/storage...
    CYCLONE FX By P & E Microcomputer Systems, Inc Gold Partner

Software

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1 software file

  • BSP, Drivers and Middleware

    LIN2.x and SAE J2602 Stack

    FLEXERARev v4.6.3Jan 30, 20201 KBFSL_LIN_2.X_DRIVER
    Download

Note: For better experience, software downloads are recommended on desktop.

Engineering Services

4 engineering services

To find a complete list of our partners that support this product, please see our Partner Marketplace.

Training

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