O2Micro OZ9313
OZ9313 is a highly accurate battery (gas) gauge designed to work with high power Battery Management Units (BMUs), specifically O2Micro’s industry leading OZ890, OZ8920, OZ8930 and OZ8940. With O2Micro’s innovative Battery Gauge Software (BGS) firmware, OZ9313 automatically self-calibrates without waiting to complete a charge/discharge cycle. Furthermore, OZ9313 is programmed to constantly scan individual cell voltages, the terminal voltage of the battery pack and external temperature in order to continually update SOC (State of Charge) and SOH (State of Health) of a high power battery pack.FEATURES
● Integrated 8-bit microcontroller with high performance and low power consumption● Integrated, highly accurate ADC works with a variety of BMU ICs, including:: o OZ890 +OZ9313: 5~13 Cells o OZ8920+OZ9313: 5~ 8 Cells o OZ8930+OZ9313: 3~ 6 Cells o OZ8940+OZ9313: 6~12 Cells o Supported Stacked Protection ICs + OZ9313
● Smart Battery Specification (SBS) v 1.1 compatible
● Compliant with JEITA safety guidelines
● Measures charge/discharge current with a dedicated 16-bit ADC: o 0.27 nVhr resolution o Automatic On-line Calibration to improve accuracy
● Monitors individual cell voltages, terminal voltage and external temperature from BMU (Battery Management Unit) chips
● Integrated internal temperature sensor
● Programmed to scan BMU protections that include: o Over voltage Protection o Under voltage Protection o Over current Protection o Short circuit Protection o Over temperature Protection o Under temperature Protection
● Embedded 64 k bytes flash and 1 k bytes SRAM to support va...