Battery Sensor with CAN and LIN

MM9Z1_638

The NXP® MM9Z1_638 is a fully integrated battery monitoring device, featuring:

  • Support of precise current measurement via an external shunt resistor
  • Four voltage measurement via an internal calibrated resistor divider or use of an external divider
  • An internal temperature sensor, allowing close proximity battery temperature measurements, plus four external temperature sensor inputs
  • LIN 2.2 protocol and physical interface and an MSCAN protocol controller for interfacing to automotive buses

Block Diagram

MM9Z1 PSP Block Diagram

MM9Z1 PSP Block Diagram
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Features

Key Features

  • Wide range battery current measurement; on-chip temperature measurement
  • Four battery voltage measurements with internal resistor dividers, and up to five direct voltage measurements for use with an external resistor divider
  • Measurement synchronization between voltage channels and current channels
  • Five external temperature sensor inputs with internal supply for external sensors
  • Low-power modes with a low-current operation
  • Multiple wake-up sources: LIN, timer, high-voltage input, external CAN interface, and current threshold and integration
  • Precision internal oscillator and connections for external crystal
  • LIN 2.2/ 2.1/ 2.0 protocol and physical interface
  • msCAN protocol controller and supply capability for 8 and 14-pin CAN interfaces
  • S12Z MCU with 128 kB flash, 8.0 kB RAM, 4.0 kB EEPROM
  • Load supply voltage 3.5 V (Min), 28 V (Max)

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The MM9Z1_638 is included in the 15-year program

Part numbers include: MM9Z1I638BM2EP, MM9Z1J638BM2EP.

Documentation

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Design Resources

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Hardware

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Software

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2 software files

  • BSPs and Device Drivers

    LIN2.x and SAE J2602 Stack

    FLEXERARev v4.6.3Jan 30, 2020 00:00:001 KBFSL_LIN_2.X_DRIVER
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  • Examples and Quick Start Software

    S12Z NVM Standard Software Driver

    EXERev v1.0.0Mar 16, 2015 00:00:006.1 MBS12Z_NVM_SSD
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Note: For better experience, software downloads are recommended on desktop.

Engineering Services

3 engineering services

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

Training

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