描述 Description

ETA6954 is a highly-integrated 3A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. It features fast charging with high input voltage support for a wide range of smart phones, tablets and portable devices. Its low impedance power path optimizes switch-mode operation efficiency, red...

特性 Features

? High-Efficiency, 1.5MHz Synchronous Switching Buck Charger

? 91% Charge Efficiency at 2A from 5V Input

? Programmable PFM Mode for Light Load Conditions

? Supports USB On-The-Go (OTG)

? Boost Converter with Up to 1.2A Output

? 91% Boost Efficiency at 1A Output

? Output Short Circuit Protection

? Wide Range Single Input to Support both USB Input and High Voltage Adapters

? Support 3.9V to 13.5V Input Voltage Range with 30V Absolute Maximum Input Voltage Rating

? Maximum Power Tracking by Input Voltage Limit Up to 4.5V (VINDPM)

? VINDPM Threshold Automatically Tracks Battery Voltage

? High Battery Discharge Efficiency with 27mΩ Battery Discharge MOSFET

? Narrow VDC (NVDC) Power Path Management

? High Integration Includes All MOSFETs, Current Sensing and Loop Compensation

? Safety

? Battery Temperature Sensing for Charge and Boost Mode

? Thermal Regulation and Thermal Shutdown

? Input UVLO and Overvoltage Protection

? Available in a QFN4x4-24 package

應(yīng)用 Application

? Tablet PC, Smart Phone, Internet Devices

? Portable Audio Speaker

? Handheld Computers, PDA, POS