BQ24070 Datasheet PDF

●DESCRIPTION

●The bq24070 and bq24071 are highly integrated Li-ion linear charger and system power-path management devices targeted at space-limited portable applications. The bq24070/1 offer DC supply (AC adapter) power-path management with autonomous power-source selection, power FETs and current sensors, high-accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device.

●FEATURES

●• Small 3,5 mm × 4,5 mm QFN Package

●• Designed for Single-Cell Li-Ion- or Li-Polymer-Based Portable Applications

●• Integrated Dynamic Power-Path Management (DPPM) Feature Allowing the AC Adapter to Simultaneously Power the System and Charge the Battery

●• Power Supplement Mode Allows Battery to Supplement the AC Input Current

●• Autonomous Power Source Selection (AC Adapter or BAT)

●• Supports Up to 2-A Total Current

●• Thermal Regulation for Charge Control

●• Charge Status Outputs for LED or System Interface Indicates Charge and Fault Conditions

●• Reverse Current, Short-Circuit, and Thermal Protection

●• Power Good Status Outputs

●• 4.4-V and 6.0-V Options for System Output Regulation Voltage

●APPLICATIONS

●• Smart Phones and PDA

●• MP3 Players

●• Digital Cameras and Handheld Devices

●• Internet Appliances