BQ77PL900DLR Datasheet PDF - TI

●DESCRIPTION

●The bq77PL900 is a five to ten series cell lithium-ion battery pack protector. The integrated I2C

●communications interface allows the bq77PL900 also to be as an analog front end (AFE) for a Host controller. Two LDOs, one 5-V, 25-mA and one 3.3-V, 25-mA, are also included and may be used to power a host controller or support circuitry.

●FEATURES

●• 5, 6, 7, 8, 9, or 10 Series-Cell Primary Protection

●• PMOS FET Drive for Charge and Discharge FETs

●• Capable of Operation with 1-mΩ Sense Resistor

●• Supply Voltage Range from 7 V to 50 V

●• Low Supply Current of 450 µA Typical

●• Integrated 5-V, 25-mA LDO

●• Integrated 3.3-V, 25-mA LDO

●• Stand-Alone Mode

●– Pack Protection Control and Recovery

●– Individual Cell Monitoring

●– Integrated Cell Balancing

●– Programmable Threshold and Delay Time for

●  – Overvoltage

●  – Undervoltage

●  – Overcurrent in Discharge

●  – Short Circuit in Discharge

●– Fixed Overtemperature Protection

●• Host Control Mode

●– I2C Interface to Host Controller

●– Analog Interface for Host Cell Measurement and System Charge/Discharge Current

●– Host-Controlled Protection Recovery

●– Host-Controlled Cell Balancing