BQ7694002DBT

Description
The BQ769x0 family of robust analog front-end (AFE) devices serves as part of a complete pack monitoring and protection solution for next-generation, high-power systems, such as light electric vehicles, power tools, and uninterruptible power supplies.
The BQ769x0 is designed with low power in mind: Subblocks within the IC may be enabled or disabled to control the overall chip current consumption, and a SHIP mode provides a simple way to put the pack into an ultra-low power state.
The BQ76920 device supports up to 5-series cells or typical 18-V packs, the BQ76930 handles up to 10-series cells or typical 36-V packs, and the BQ76940 works for up to 15-series cells or typical 48-V packs. A variety of battery chemistries may be managed with these AFEs, including Li-ion, Li-iron phosphate, and more. Through I2C, a host controller can use the BQ769x0 to implement many battery pack management functions, such as monitoring (cell voltages, pack current, pack temperatures), protection (controlling charge/discharge FETs), and balancing. Integrated A/D converters enable a purely digital readout of critical system parameters, with calibration handled in TI’s manufacturing process.  
Features
• AFE monitoring features– Pure digital interface– Internal ADC measures cell voltage, die temperature, and external thermistor– A separate, internal ADC measures pack current (coulomb counter)– Directly supports up to three thermistors (103AT)
• Hardware protection features– Overcurrent in Discharge (OCD)– Short Circuit in Discharge (SCD)– Overvoltage (OV)– Undervoltage (UV)– Secondary protector fault detection
• Additional features– Integrated cell balancing FETs– Charge, discharge low-side NCH FET drivers– Alert interrupt to host microcontroller– 2.5-V or 3.3-V output voltage regulator– No EEPROM programming necessary– High supply voltage absolute maximum (up to 108 V)– Simple I2C compatible interface (CRC option)– Random cell connection tolerant   Applications
• Light electric vehicles (LEV): eBikes, eScooters, pedelec, and pedal-assist bicycles
• Power tools and garden tools
• Battery backup units (BBUS), energy storage systems (ESS), and uninterruptible power supply (UPS) systems
• Other industrial battery packs (≥10S)