Integrated Precision Battery Sensor for Automotive
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.
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Development system for evaluation of the ADuC7036, complete system solution for battery monitoring in 12 V automotive applications.