1 Features

1• Adapter Input Voltage Range: 3 V to 14 V

– Allow up to 14-V Adaptor Voltage

• Highly Integrated 7-A Battery Switch

– Integrated MOSFETs and Current Sensing

– Low RDS(on) (13-mΩ) MOSFETs for High

Current Operation

• Integrated High Accuracy ADC for System Monitor

– VBUS, VBAT, VOUT, VDROP Voltage

– Input and Battery Current

– Battery and VBUS Connector Temperature

• Linear Regulation (LDO) Mode Operation

– Four Linear Regulation Loops: IBUS, IBAT,

VBAT and VOUT

– Programmable Linear Regulation Thresholds

• Programmable Safety Protections

– VBUS, VOUT, and VBAT Over Voltage

Protections (OVP)

– IBUS and IBAT Over Current Protection (OCP)

– IBUS Reverse Current Protection (RCP)

– VDROP (VBUS-VOUT) OVP

– VBUS Connector and Battery Thermal

Protection

– Thermal Shutdown

• Integrated Input OVP FET Control with Fast OVP

Response (2 μs)

• Interrupt Status Output For Host Processor Alert

• Up To 1-MHz I2C Read and Write Speed

• Low Battery Leakage Current in Battery Only

Mode

• WCSP Package for Small Footprint

2 Applications

• Smart Phone

• Tablet PC

3 Description

The device is a 7-A battery switch charger with an

integrated 10-bit ADC. The high-current battery

switch charger is a 13-mΩ MOSFET with reverse

current blocking designed for high efficiency and

minimal voltage drop. The high-charge current

capability of the device makes it ideal for

smartphones, tablets, and other portable devices with

large battery capacity.

The integrated 10-bit ADC can measure input voltage

and current, battery voltage and current, as well as

battery temperature and input connector temperature.

This allows the user application to continuously

monitor the power input and battery charging

parameters to ensure the safety of the battery

charging. The flexible OVP and OCP thresholds for

VBUS, VOUT, and battery can be modified via I2C

registers as the battery goes through constant current

(CC) and constant voltage (CV) mode.

The I2C serial interface of the device can operate at

speeds up to 1 MHz and allows access to the ADC’s

measurements of the different charging parameters

and also allows for flexible software control of the

device. The INT pin provides instantaneous feedback

to the host in case of a fault condition. I2C status

registers allow the host to read the current status of

all faults and events.

The device comes in a DSBGA package.