SLUAAJ6 april   2023 BQ25171-Q1 , BQ51013B-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Wireless Power Design
    1. 1.1 Wireless Charging Input
    2. 1.2 Battery Charger
  4. 2Layout Guidelines
    1. 2.1 Wireless Receiver (BQ51013B-Q1)
    2. 2.2 Linear Charger (BQ25171-Q1)
  5. 3Experimental Results
    1. 3.1 Wireless Power Efficiency
    2. 3.2 FOD Calibration
    3. 3.3 Battery Charge Profile
  6. 4References

2.1 Wireless Receiver (BQ51013B-Q1)

  • Keep the trace resistance as low as possible on AC1, AC2, and BAT.
  • Detection and resonant capacitors must be as close to the device as possible.
  • COMM, CLAMP, and BOOT capacitors must be placed as close to the device as possible.
  • Via interconnect on PGND net is critical for appropriate signal integrity and proper thermal performance.
  • High frequency bypass capacitors must be placed close to RECT and OUT pins.
  • ILIM and FOD resistors are important signal paths and the loops in those paths to PGND must be minimized.
GUID-20221222-SS0I-LHJ6-Z2NR-R3LTSRKSVXRM-low.png Figure 2-1 Layout of BQ51013B-Q1