SLUAAU1 January   2024 BQ25700A , BQ25708 , BQ25710 , BQ25713 , BQ25720 , BQ25723 , BQ25730 , BQ25731

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 BQ25710 EVM Circuit
  5. 2Layout Guidelines
    1. 2.1 PCB Stack-Up (4 Layers)
    2. 2.2 Identifying Critical Circuit Paths
    3. 2.3 Input and Output Loop Placements Considering Noise, Efficiency, and Thermal Performance
    4. 2.4 Kelvin Sensing Circuit for Current Sense to Achieve High Accuracy
    5. 2.5 Small Capacitors Placements Considering Noise
    6. 2.6 Separating AGND and PGND
  6. 3References

2 Layout Guidelines

Proper layout of the components to minimize high frequency current path loop is important to prevent electrical and magnetic field radiation and high frequency resonant problems. Here is a PCB layout guide based on priority for proper layout.