BQ25601DRTWR

1 Features

1• High-Efficiency, 1.5-MHz, Synchronous SwitchMode Buck Charger

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

– Optimized for USB Voltage Input (5 V)

– Selectable Low Power Pulse Frequency

Modulation (PFM) Mode for Light Load

Operations

• Supports USB On-The-Go (OTG)

– Boost Converter With Up to 1.2-A Output

– 92% Boost Efficiency at 1-A Output

– Accurate Constant Current (CC) Limit

– Soft-Start Up To 500-µF Capacitive Load

– Output Short Circuit Protection

– Selectable Low Power 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

– Auto Detect USB BC1.2, SDP, CDP, DCP and

Non-Standard Adaptors

• High Battery Discharge Efficiency With 19.5-mΩ

Battery Discharge MOSFET

• Narrow VDC (NVDC) Power Path Management

– Instant-On Works with No Battery or Deeply

Discharged Battery

– Ideal Diode Operation in Battery Supplement

Mode

• BATFET Control to Support Ship Mode, Wake Up

and Full System Reset

• Flexible Autonomous and I

2C 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

– ±10% at 0.9-A Input Current Regulation

• Create a Custom Design Using the BQ25601D

With the WEBENCH® Power Designer

2 Applications

• Smart Phones

• Portable Internet Devices and Accessory

3 Description

The BQ25601D device is a highly-integrated 3-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,

reduces battery charging time and extends battery life

during discharging phase. The I

2C serial interface

with charging and system settings makes the device

a truly flexible solution.

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