The BQ7694001DBT is a cell Li-ion and Li-phosphate Battery Monitor designed with low power in mind, sub-blocks within the IC may be enabled/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 18V packs, the bq76940 works for up to 15-series cells or typical 48V packs. A variety of battery chemistries may be managed with these AFEs, including Lithium Ion, Lithium iron phosphate and more. Via 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\x92s manufacturing process.
- Pure digital interface
- Directly supports up to three thermistors
- Overcurrent in discharge (OCD) protection
- Short-circuit in discharge (SCD) protection
- Overvoltage (OV) protection
- Undervoltage (UV) protection
- Integrated cell balancing FETs
- Charge, discharge low-side NCH FET drivers
- Alert interrupt to host microcontroller
- No EEPROM programming necessary
- Random cell connection tolerant
- Green product and no Sb/Br
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