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ADUC7036:  Integrated Precision Battery Sensor for Automotive

Product Details


The ADuC7036 is a complete system solution for battery monitoring in 12 V automotive applications. These devices integrate all of the required features to precisely and intelligently monitor, process, and diagnose 12 V battery parameters including battery current, voltage, and temperature over a wide range of operating conditions.

Minimizing external system components, the device is powered directly from the 12 V battery. An on-chip, low dropout regulator generates the supply voltage for three integrated, 16-bit, Σ-Δ ADCs. The ADCs precisely measure battery current, voltage, and temperature to characterize the state of health and charge of the car battery.

TA Flash/EE memory-based ARM7™ microcontroller (MCU) is also integrated on-chip. It is used to both preprocess the acquired battery variables and to manage communications from the ADuC7036 to the main electronic control unit (ECU) via a local interconnect network (LIN) interface that is integrated onchip.

Both the MCU and the ADC subsystem can be individually configured to operate in normal or flexible power saving modes of operation.

Applications

  • Battery sensing/management for automotive systems
  • FEATURES and BENEFITS

    High precision ADCs

    • Chinese data sheet available
    • Dual channel, simultaneous sampling, 16-bit, Σ-Δ ADCs
    • Programmable ADC throughput from 1 Hz to 8 kHz
    • On-chip 5 ppm/°C voltage reference
    • Current channel
      Fully differential, buffered input
      Programmable gain from 1 to 512
      ADC input range: −200 mV to +300 mV
      Digital comparators, with current accumulator feature
    • Voltage channel
      Buffered, on-chip attenuator for 12 V battery inputs
    • Temperature channel
      External and on-chip temperature sensor options

    Microcontroller

    • ARM7TDMI® core, 16-/32-bit RISC architecture
    • 20.48 MHz PLL with programmable divider
    • PLL input source
      On-chip precision oscillator
      On-chip low power oscillator
      External (32.768 kHz) watch crystal
    • JTAG port supports code download and debug

    Memory

    • 96-kB Flash/EE memory, 6-kB SRAM
    • 10,000-cycle Flash/EE endurance, 20-year Flash/EE retention
    • In-circuit download via JTAG and LIN

    On-chip peripherals

    • SAEJ2602/LIN 1.3/LIN 2.0-compatible (slave) support via UART with hardware synchronization
    • Flexible wake-up I/O pin, master/slave SPI® serial I/O
    • 9-pin GPIO port, 3× general-purpose timers
    • Wake-up and watchdog timers
    • Power supply monitor, on-chip power-on-reset

    Power

    • Operates directly from 12 V battery supply
    • Current consumption
      Normal mode 10 mA at 10 MHz
      Low power monitor mode

    Package and temperature range

    • 48-lead, 7 mm × 7 mm LFCSP
    • Fully specified for −40°C to +115°C operation

    Functional Block Diagram for ADUC7036

    Documentation

    Title Content Type File Type
    ADuC7036: Integrated Precision Battery Sensor for Automotive Data Sheet (Rev C, 03/2011) (pdf, 1763 kB) Data Sheets PDF
    AN-1138: LINB DLL Programmer´s Guide  (pdf, 153 kB) Application Notes PDF
    AN-881: Flash/EE Memory Programming via LIN—Protocol 4  (pdf, 166 kB) Application Notes PDF
    Using Integrated Precision Analog Microcontrollers to Simplify Data Acquisition System Design
    The ins and outs (the I/O) of using Analog Microcontrollers to manage data acquisition applications
    Webcasts WEBCAST
    Precision Analog Microcontrollers—ARM7® and 8051 Series  (pdf, 5834 kB) Overview PDF
    Emerging Energy Applications Solutions Bulletin, Volume 10, Issue 4  (pdf, 1496 kB) Solutions Bulletins PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    Sigma-Delta ADC Tutorial
    An interactive illustration showing the behavior of an idealized sigma-delta A/D converter.
    Utilities and Conversions HTML
    Development Tools Software Configurable Products HTML

    Evaluation Kits & Symbols & Footprints

    Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

    Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

    SampleSample & Buy

    Price, packaging, availability

    ADUC7036 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    ADUC7036BCPZ Status: Production 48 ld LFCSP (7x7x.85mm w/4.1mm Pad) 48 Ind Tray, 260 $7.64 $6.72 Y  Material Info Notify Me Purchase Sample
    ADUC7036BCPZ-RL Status: Production 48 ld LFCSP (7x7x.85mm w/4.1mm Pad) 48 Ind Reel, 2500 - $6.72 Y  Material Info Notify Me Purchase
    ADUC7036CCPZ Status: Production LFCSP:LEADFRM CHIP SCALE 48 Ind Tray, 260 $7.64 $6.72 Y  Material Info Notify Me Purchase Sample
    ADUC7036CCPZ-RL Status: Production LFCSP:LEADFRM CHIP SCALE 48 Ind Reel, 2500 - $6.72 Y  Material Info Notify Me Purchase
    ADUC7036DCPZ Status: Contact ADI LFCSP:LEADFRM CHIP SCALE 48 Ind Tray, 260 $7.64 $6.72 Y  Material Info Notify Me Purchase
    ADUC7036DCPZ-RL Status: Contact ADI LFCSP:LEADFRM CHIP SCALE 48 Ind Reel, 2500 - $6.72 Y  Material Info Notify Me Purchase
    Price Table Help

    The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

    ADuC7036 QuickStart Plus Development System
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-ADUC7036QSPZ Status: Production ADuC7036 Quickstart Plus development system $159.00 Yes -
    USB-I2C/LIN-CONV-Z Status: Production I2C/LIN Serial download interposer board $91.08 Yes -

    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

    Check Inventory & Purchase

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