MP2733A

The MP2733A is a 4.5A, highly integrated, switch-mode battery charger management device for single-cell Li-ion or Li-polymer batteries. It works with narrow-voltage DC (NVDC) system power path management, and is well-suited for a variety of applications, including smartphones, tablets, wireless cameras, and other portable devices. Its low-impedance power path optimizes efficiency, reduces battery charging time, and extends battery life. The I²C interface allows the device to be flexibly controlled via configurable charging and system settings.

The device supports a wide range of input sources, including standard USB host ports and high-powered wall adapters with fast-charge capabilities. The device provides USB input type detection via the DP/DM pins. It supports USB On-The-Go (OTG) operation by supplying 5V on the input bus, with an output current (I_OUT) up to 3A.

The MP2733A initiates and completes a charging cycle without software control. The device automatically detects the battery voltage (V_BATT) and charges the battery in different stages. Charging automatically terminates once a full charge is detected. If the battery drops below the recharge threshold, the charger automatically begins another charging cycle.

The charger provides various safety features for battery charging and system operations, including a charging safety timer, battery temperature monitoring, over-voltage protection (OVP), and over-current protection (OCP). If a fault occurs, the charger asserts an INT signal to the host. The device provides battery FET (BATFET) disable control to enter shipping mode, as well as system reset functionality via the DISC pin.

The MP2733A is available in a QFN-26 (3.5mmx3.5mm) package.