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ZSSC1856 is a dual-channel ADC with an embedded microcontroller for battery sensing/management in automotive, industrial and medical systems. One of the two input channels measures the battery current IBAT via the voltage drop at the external shunt resistor. The second channel measures the barrery voltage VBAT and the temperature. An integrated flash memory is provided for customer-specific software (e.g. dedicated algorithms for calculating the battery state). During Sleep Mode (e.g. engine off), the system makes periodic measurements to monitor the discharge of the battery. Measurement cycles are controlled by the software and include various wake-up conditions. The ZSSC1856 is optimized for ultra-low power consumption and draws only 100 µA or less in this mode.
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