OZ9313
Overview
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. OZ9313 directly measures charge current and discharge current with an integrated high-accuracy and low-power sigma-delta ADC.
- 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 variety of battery characteristics in high power application
- Integrated 8-bit PWM with 2 bit pre-scaler and multi-GPIOs (GPIO0~GPIO9) and 2 GPO (GPIO10, GPIO11)
