SLLA472A March   2020  – February 2022 ISO5852S , ISO5852S-EP , ISO5852S-Q1 , LM2005 , LM2101 , LM2103 , LM2104 , LM2105 , LM25101 , LM27222 , LM2724A , LM5100A , LM5100B , LM5100C , LM5101 , LM5101A , LM5101B , LM5101C , LM5102 , LM5104 , LM5105 , LM5106 , LM5107 , LM5108 , LM5109 , LM5109A , LM5109B , LM5109B-Q1 , LM5113-Q1 , LMG1205 , LMG1210 , SM72295 , SM74104 , TPS28225 , TPS28225-Q1 , TPS28226 , TPS2832 , TPS2836 , TPS2837 , UC2950 , UCC27200 , UCC27200-Q1 , UCC27200A , UCC27201 , UCC27201A , UCC27201A-DIE , UCC27201A-Q1 , UCC27211 , UCC27211A , UCC27211A-Q1 , UCC27212 , UCC27212A-Q1 , UCC27222 , UCC27282 , UCC27282-Q1 , UCC27284 , UCC27284-Q1 , UCC27288 , UCC27289 , UCC27301A , UCC27301A-Q1 , UCC27311A , UCC27311A-Q1 , UCC27710 , UCC27712 , UCC27712-Q1 , UCC27714 , UCC27734 , UCC27734-Q1 , UCC27735 , UCC27735-Q1 , UCC27834 , UCC27834-Q1 , UCC27884 , UCC27884-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2Current Boost With BJT Totem Pole Stage
  4. 3Current Boost With Saturated MOSFET Totem Pole Stage
  5. 4Implementation Details
  6. 5Performance Results
  7. 6Comparison of the Two Methods
  8. 7Conclusion
  9. 8References
  10. 9Revision History

4 Implementation Details

Both the circuits were made in the same size: 50-mm length, 30-mm width, and 13-mm overall height. They have the same external pin-out, allowing them to be tested under the same conditions. There are 10-mm high heatsinks attached to the board to cool the drive BJTs and MOSFETs. These boards are made in such a way that they can be mounted very close to the device being driven. The pictures of the boards follow:

The board in Figure 4-1 is referred to as Board 1, hereafter.

GUID-1483A9D7-7AE7-46AC-B4F6-3A7115B843E7-low.jpg Figure 4-1 High-Current Gate-Driver Board Using ISO5852S and BJTs (Top and Bottom View)

The board in Figure 4-2 is referred to as Board 2, hereafter.

GUID-80702060-3208-4A04-9437-1E3E1CAB4656-low.jpg Figure 4-2 High-Current Gate Driver Board Using LM5106 and MOSFETs (Top and Bottom View)