SLUUCJ2 July   2021 UCC14240-Q1

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Pin Configuration and Functions
  3. 2Description
    1. 2.1 EVM Electrical Performance Specifications
  4. 3Schematic
  5. 4EVM Setup and Operation
    1. 4.1 Reference
    2. 4.2 External Connections for Easy Evaluation
    3. 4.3 Powering the EVM
      1. 4.3.1 Power on for Start-up
      2. 4.3.2 Power off for Shutdown
    4. 4.4 EVM Test Points
    5. 4.5 Oscilloscope Probes: Probing the EVM
  6. 5 Performance Data
    1. 5.1 Efficiency Data
    2. 5.2 Regulation Data
    3. 5.3 Start-up Waveforms
    4. 5.4 Inrush Current
    5. 5.5 AC Ripple Voltage
    6. 5.6 EN and /PG Timing
    7. 5.7 Shutdown
    8. 5.8 Steady State
    9. 5.9 Thermal Performance
  7. 6Assembly and Printed Circuit Board (PCB) Layers
  8. 7Bill of Materials (BOM)
  9. 8Revision History

Assembly and Printed Circuit Board (PCB) Layers

The UCC14240EVM-052 is designed using a four-layer PCB. The EVM, PCB demonstrates the important use of ground planes and stitching vias for shielding and improving EMI performance. For higher density PCBs such as automotive traction inverters, the PCB could include several additional signal layers but similar design methodology, such as the use of stitch vias, internal ground planes and not routing is the isolation region between GNDP and GNDS, should be applied as best as possible.


GUID-20210719-CA0I-KGB2-TTBF-H804BPWHNBZS-low.png

Figure 6-1 UCC14240EVM-052, Fully Assembled 3D Top View

GUID-20210719-CA0I-R2G5-QTL8-QZ7MKJFXN0NJ-low.png

Figure 6-2 UCC14240EVM-052, Fully Assembled 3D Bottom View

GUID-20210719-CA0I-4BTW-GGZV-ZKFL1KLJPTQX-low.png

Figure 6-3 UCC14240EVM-052, 3D Angle View

GUID-20210720-CA0I-N3P4-QJZ4-HSBTLX8GMK4R-low.gif

Figure 6-4 UCC14240EVM-052, PCB Top Layer, Assembly

GUID-20210720-CA0I-1NBG-1ML2-0MXJS7Q7HJGR-low.gif

Figure 6-5 UCC14240EVM-052, Signal Layer 2 (same as layer 3)

GUID-20210720-CA0I-1NBG-1ML2-0MXJS7Q7HJGR-low.gif

Figure 6-6 UCC14240EVM-052, Signal Layer 3 (same as layer 2)

GUID-20210720-CA0I-3CXG-D2QV-BDQCJ1PP1NZW-low.gif

Figure 6-7 UCC14240EVM-052, PCB Bottom Layer, Assembly (mirrored view)