SLVAFE5 September   2022 TPS92610-Q1 , TPS92611-Q1 , TPS92612-Q1 , TPS92613-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2TPS9261x-Q1 Fault Detection and Discrete Fault Detection Introduction
    1. 2.1 Discrete Fault Detection
    2. 2.2 Open Load vs Short-to-Battery Detection
    3. 2.3 Short to Ground vs Overtemperature Detection
    4. 2.4 Fault Detection Logic Summary
  5. 3Discrete Fault Detection Circuit Details
    1. 3.1 Simulation
    2. 3.2 PCB Implementation
    3. 3.3 Test Setup
    4. 3.4 Thermal Testing for Overtemperature Conditions
  6. 4Conclusion
  7. 5References

3.2 PCB Implementation

Figure 3-4 illustrates the PCB layout in a 2D view and Figure 3-5 utilizes a 3D view.

GUID-20220902-SS0I-0DB5-KRDL-TZ4JVQKJDHXK-low.png Figure 3-4 2D Fault Detection Circuit Layout
GUID-20220902-SS0I-PVHD-RC9V-2MTDWR64HW4K-low.png Figure 3-5 3D Fault Detection Circuit Layout

The fault detection circuit was added in conjunction to the TPS92611-Q1 EVM and highlighted in silk screen on the layout. As shown in the layout, the footprint for the fault detection circuit is compact, only requiring an area of 11.19 mm × 5.11 mm (440.55 mil × 201.18 mil).