SPVA061 June   2026 TAS2573

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Pin Configuration and Functions
  6. 3Application Schematics
    1. 3.1 Recommended Component Ratings
  7. 4Layout Guidelines
    1. 4.1  VDD Pin
    2. 4.2  PVDD Pin
    3. 4.3  GREG Pin
    4. 4.4  SW Pin
    5. 4.5  VBAT Pin
    6. 4.6  VBAT_SNS Pin
    7. 4.7  OUT_P and OUT_N Pins
      1. 4.7.1 Optional EMI Filter on Output
    8. 4.8  IOVDD Pin
    9. 4.9  DREG Pin
    10. 4.10 Digital I/O Pins
    11. 4.11 Ground Pins
  8. 5Summary
  9. 6References

4.6 VBAT_SNS Pin

The VBAT_SNS pin is an additional battery sense pin present in the device.

The following guidelines need to be accounted for in PCB routing of the VBAT_SNS pin:

  • In VBAT1S mode, this pin acts as an optional Kelvin sense pin.
  • If unused, connect this pin to ground.
  • In VBAT2S mode, this pin is connected to the 2S power source. This pin is then monitored for internal decisions on voltage limiter, boost turn-on, and more.
  • When used, this pin needs to be routed to the power source through a separate trace that is independent of the high current path that is routed to the SW inductor.