BQ2562x FAQ Home Page
This home page is for common questions in relation to the BQ25620, BQ25622, BQ25628, BQ25629, BQ25628E, and BQ25622E.
FAQs
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Charging regulation:
- Why does ICHG reduce when reaching the maximum duty cycle?
- Why does ICHG reduce during the input current DPM (Dynamic Power Management) or the input voltage DPM?
System regulation:
- Why does the LED connected to STAT pin flashes and the SYS voltage unstable when battery is not connected?
- How is VSYS regulated for BQ25620/22 and BQ25628/29? What conditions determine how it’s regulated? When is SYSMIN threshold valid?
Safety features:
OTG function:
Miscellaneous:
- .bqz file for BQ25628 EVM and BQ25620 EVM
- BQ2562x Calculator Tool
- Online GUI Thermistor Calculator
- How does QON pin function work and what is required hold low timing?
- Does the BQ2562x device store my register configuration?
Software:
Application Notes
- Selection of Single-Cell Buck Narrow VDC Switching Battery Chargers
- Battery Charger Overload Protection in Boost Mode Operation
- USB D+/D- Input Current Limit Detection
- High-Efficiency Charging for TWS Using a 2-Pin Interface Application Report (Rev. A)
- LiFePO4 Design Considerations
- Optimize your application with a power path battery charger
Other Documentation
- How to choose the right charger for industrial batteries
- Powering the smart home with a simple charger
- Benefits of rechargeable batteries in real-time location system trackers
- Addressing Performance Challenges in Nano-IQ Systems (Rev. A)
Datasheets
- BQ25628E I2 C Controlled 1-Cell, 2A, Maximum 18V Input, Buck Battery Charger with NVDC Power Path Management datasheet (Rev. B)
- BQ25628 / BQ25629 I2 C Controlled 1-Cell, 2A, Maximum 18V Input, Buck Battery Charger with NVDC Power Path Management and OTG Output datasheet (Rev. B)
- BQ25622E I2 C Controlled 1-Cell, 3A, Maximum 18V Input, Buck Battery Charger with NVDC Power Path Management datasheet (Rev. B)
- BQ25620 /BQ25622 I2 C Controlled 1-Cell, 3.5A, Maximum 18V Input, Buck Battery Charger with NVDC Power Path Management and OTG Output datasheet (Rev. C)
EVM User Guides
- BQ25620EVM User's Guide (Rev. A) - and BQ25622, BQ25622E
- BQ25628 BQ25629 Evaluation Module User's Guide - and BQ25628E
