BQ24140
Description
The bq24140 is a pact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications.
Key Features
- High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
- Charge Battery and Provide USB-OTG Support at the Same Time
- Boost Mode Operation for USB OTG: - Input Voltage Range (from Battery): 2.3V to 4.5V - Output for VBUS: 5.05V/500 mA
- Input Voltage Based Dynamic Power Management Provides Protection Against Current Limited Adapters
- Bad Adaptor Detection and Rejection
- Safety Limit Register for Added Security by Limiting Maximum Charge Voltage and Maximum Charge Current
- 20-V Absolute Maximum Input Voltage Rating
- 9.0-V Maximum Operating Input Voltage
- Charge Faster than Linear Chargers
- Built-in Input Current Sensing and Limiting
