TPS65011EVM-049: 2) 2DC/DC, Li-Ion Ch, 2 LDOs, I2C

The TPS65011 also has a highly integrated and flexible Li-Ion linear charger and system power management. It offers integrated USB-port and ac-adapter supply management with autonomous power-source selection, power FET and current sensor, high accuracy current and voltage regulation, charge status, and charge termination.

The TPS65011 charger automatically selects the USB-Port or the ac-adapter as the power source for the system. In the USB configuration, the host can increase the charge current from the default value of maximum 100 mA to 500 mA via the interface. In the ac-adapter configuration, an external resistor sets the maximum value of charge current.

The battery is charged in three phases: conditioning, constant current, and constant voltage. Charge is normally terminated based on minimum current. An internal charge timer provides a safety backup for charge termination. The TPS65011 automatically restarts the charge if the battery voltage falls below an internal threshold. The charger automatically enters sleep mode when both supplies are removed.

The serial I²C interface can be used for dynamic voltage scaling, for collecting information on and controlling the battery charger status, for optionally controlling 2 LED driver outputs, a vibrator driver, masking interrupts, or for disabling/enabling and setting the LDO output voltages.

* Based off board 296-18989-ND