MP2652GVT

The MP2652 is a buck-boost charger IC designed for battery packs with 2 cells to 5 cells in series. The device can accept a wide 4V to 22V input voltage (VIN) range to charge the battery. The buck-boost topology allows the battery voltage (VBATT) to be above or below VIN. When the input is present, the MP2652 operates in charge mode. It measures the VBATT and charges the battery with four phases: constant-current trickle charge, constant-current pre-charge, constant-current fast charge, and constant-voltage charge. Other features include charge termination and auto-recharge. The MP2652 also integrates an input current (IIN) limit and VIN limit to avoid overloading the input power source. This is compliant with USB and power delivery (PD) specifications. The MP2652 can also supply a wide voltage range (4V to 21V) at the input when source mode is enabled. The device also has an output current (IIN_SRC) limit with a high resolution in source mode. The I2C/SMBus interface can configure the charge and discharge parameters, including the IIN limit, VIN limit, charge current, and battery-full regulation voltage in charge mode, as well as the output voltage (VIN_SRC) and IIN_SRC in source mode. The MP2652 can also use the registers to provide information on statuses and faults. To guarantee safe operation, the device limits the die temperature to a configurable threshold. Other safety features include input over-voltage protection (OVP), battery OVP, thermal shutdown, and a configurable timer to prevent prolonged charging of a dead battery. The MP2652 is available in a TQFN-30 (4mmx5mm) package.