DESCRIPTION

The MP2733 is a 4.5A, highly integrated switchmode

battery charger management device for

single-cell Li-ion or Li-polymer batteries. This

device works with narrow voltage DC (NVDC)

system power path management, and is wellsuited

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 with configurable charging and

system settings.

The MP2733 supports a wide range of input

sources, including standard USB host ports and

high-powered wall adapters with fast charge

capabilities. The MP2733 provides USB input

type detection via the DP/DM pins.

The device supports USB On-the-Go (OTG)

operation by supplying 5V on the input bus, with

an output current limit up to 3A.

The MP2733 initiates and completes a charging

cycle without software control. It automatically

detects the battery voltage and charges the

battery in different stages. Charging

automatically terminates when a full charge is

detected. When the charged 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, and 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

BATTFET disable control to enter shipping mode,

as well as system reset functionality via the DISC

pin.

FEATURES

• 3.7V to 16V Operating Input Voltage Range

• Up to 22V Sustainable Voltage

• High-Efficiency, 4.5A, 1.35MHz Buck

Charger with Up to 92 Charge Efficiency

with 3A Charge Current:

o Configurable D+/D- for Flexible Fast

Charge Protocol Support

• USB OTG with 4.8V to 5.5V Adjustable

Output: Up to 3A Output, Up to 93

Efficiency with 1.5A Output

• NVDC Power Path Management

o Instant-On Works with No Battery or

Deeply Discharged Battery

o Ideal Diode Operation in Battery

Supplement Mode

• High Battery Discharge Efficiency with

14mΩ BATTFET Up to 8.5A

• I2C Interface for Flexible System Parameter

Setting and Status Reporting

• Fully Integrated MOSFETs, Current Sensing

• Dedicated DISC Pin to Control Shipping

Mode and System Reset

• 13μA Low Battery Leakage Current in

Shipping Mode

• Integrated ADC Monitors Input Voltage and

Current, Battery Voltage, Charge Current,

System Voltage, and Battery Temperature

• Charging Status Indicator

• Safety Features: Configurable JEITA for

Battery Temp Protection in Charge Mode,

Battery Charging Safety Timer, Thermal

Regulation and Shutdown, Watchdog

Monitoring I2C, and Input/System OVP

• Available in a QFN-26 (3.5mmx3.5mm)

Package

APPLICATIONS

• Tablet PCs

• Smartphones

• Wireless Cameras

• Other Portable Devices