The bqTINY™ III-series of devices are highly integrated Li-ion linear chargers and system power-path management devices targeted at space-limited portable applications. The bqTINY III-series offer integrated USB-port and 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 or the USB Port to Simultaneously Power the System and Charge the Battery
• Power Supplement Mode Allows Battery to Supplement the USB or AC Input Current
• Autonomous Power Source Selection (AC Adapter or USB)
• Integrated USB Charge Control With Selectable
100-mA and 500-mA Maximum Input Current Regulation Limits
• Dynamic Total Current Management for USB
• Supports Up to 2-A Total Current
• 3.3-V Integrated LDO Output
• 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 (AC Adapter and USB Port Present) Status Outputs