ADUC7034 Integrated Precision Battery Sensor for Automotive

The ADuC7034 is a complete, system solution for battery monitoring in 12 V automotive applications. The device integrates 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. Battery sensing/management for automotive systems

Data Sheet, Rev. A, 8/09

Features and Benefits
  • 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
  • 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
  • 32-kB Flash/EE memory, 4-kB SRAM
  • 10,000-cycle Flash/EE endurance, 20-year Flash/EE retention
  • In-circuit download via JTAG and LIN
  • 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
  • Operates directly from 12 V battery supply
  • Current consumption
    Normal mode 10 mA at 10 MHz
    Low power monitor mode
  • 48-lead, 7 mm x 7 mm LFCSP
  • Fully specified for −40°C to +115°C operation
Processors & DSP
Automotive
  • Powertrain Body and Chassis
Data Sheets
Documentnote
ADuC7034: Integrated Precision Battery Sensor for Automotive Data Sheet (Rev. B)
ADuC7034: Silicon Anomaly (Rev B, 04/2010)
PDF 1826 kB
Application Notes
Documentnote
AN-881: Flash/EE Memory Programming via LIN—Protocol 4 (Rev. 0)PDF 166 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADUC7034BCPZ Production48 ld LFCSP 7x7mm (5.1EP)OTH 260-40 to 115C7.246.37Y
ADUC7034BCPZ-RL Production48 ld LFCSP 7x7mm (5.1EP)REEL 2500-40 to 115C06.37Y
Reference Materials
ADuC7034: Integrated Precision Battery Sensor for Automotive Data Sheet (Rev. B) aduc7034
ADuC7034: Silicon Anomaly (Rev B, 04/2010) aduc7034
AN-881: Flash/EE Memory Programming via LIN—Protocol 4 (Rev. 0) aduc7034
AN-881: 通过LIN—协议4进行Flash/EE存储器编程 (Rev. 0) aduc7034
Emerging Energy Applications Solutions Bulletin, Volume 10, Issue 4 ad7656