Battery monitors extend
automotive battery life
Targeting the automotive market, the ADuC7030/2/3 family of precision battery monitors provides accurate, continuous measurement of battery state, even while the engine is off, while consuming as little as 300 µA in low-power mode and less than 10 mA at 10 MHz in normal operating mode. The devices' 16-bit sigma-delta A/D converters measure battery voltage (direct connection, no external attenuation required) in the range of 3.5 to 18 V and battery current from less than 1 mA to 1500 A.
Combined with an on-chip PGA and a temperature sensor input, the ADuC7030/2/3 allows the system integrator to determine the battery's state-of-charge and state-of-health using a proprietary algorithm that resides in the monitor chip's flash memory. The information is then communicated via the on-chip LIN 2.0 (slave) compliant transceiver to the electronic control unit. The processing engine at the core of the ADuC7030/2/3 series is an ARM7TDMI with a core clock rate programmable to a maximum of 20 MHz. (From $6.73 ea/1,000�available now.)
Analog Devices
Norwood, MA
Technical Support 800-262-5643
Fax 781-937-1021
http://www.analog.com
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