1 Features

1• Operation as Parallel Charger to Provide Fast

Charging in Dual Charger Operation

• High-Efficiency, 1.5-MHz, Synchronous Switch-

Mode Buck Charger

– 92% Charge Efficiency at 2 A from 5-V Input

– Optimized for USB Voltage Input (5 V)

– Low Power Pulse Frequency Modulation

(PFM) Mode for Light Load Operations

• Single Input to Support USB Input and High

Voltage Adapters

– Support 3.9-V to 13.5-V Input Voltage Range

With 22-V Absolute Maximum Input Voltage

Rating

– Programmable Input Current Limit (100 mA to

3.2 A With 100-mA Resolution) to Support

USB 2.0, USB 3.0 Standards and High Voltage

Adaptors (IINDPM)

– Maximum Power Tracking by Input Voltage

Limit Up to 5.4 V (VINDPM)

– VINDPM Threshold Automatically Tracks

Battery Voltage

• High Charge Efficiency With 19.5-mΩ Charging

Current Sensing MOSFET

• Narrow VDC (NVDC) Power Path Management

– Instant-On Works with No Battery or Deeply

Discharged Battery

– Ideal Diode Operation in Battery Supplement

Mode

• Flexible Autonomous and I2C Mode for Optimal

System Performance

• High Integration Includes All MOSFETs, Current

Sensing and Loop Compensation

• 17-μA Low Battery Leakage Current

• High Accuracy

– ±0.5% Charge Voltage Regulation

– ±5% at 1.5-A Charge Current Regulation

– ±6% at 1.38-A Charge Current Regulation

– ±10% at 0.9-A Input Current Regulation

– Remote Battery Sensing for Fast Charge

2 Applications

• Smart Phones

• Tablet

3 Description

The bq25600C devices are highly-integrated 3.0-A

switch-mode battery charge management and system

power path management device for single cell Li-Ion

and Li-polymer battery. The low impedance power

path optimizes switch-mode operation efficiency and

reduces battery charging time. The I2C serial

interface with charging and system settings makes

the device a truly flexible solution.