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  • Using the UCC21520EVM-286, UCC20520EVM-286, UCC21521CEVM-286, and UCC21530EVM-286

    • SLUUBG8C November   2018  – October 2021 UCC20520 , UCC21320-Q1 , UCC21520 , UCC21520-Q1 , UCC21521 , UCC21530

       

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  • Using the UCC21520EVM-286, UCC20520EVM-286, UCC21521CEVM-286, and UCC21530EVM-286
  1.   Trademarks
  2. 1 Introduction
  3. 2 Description
  4. 3 Features
    1. 3.1 I/O Description
    2. 3.2 Jumpers (Shunt) Setting
  5. 4 Electrical Specifications
  6. 5 Test Summary
    1. 5.1 Definitions
    2. 5.2 Equipment
      1. 5.2.1 Power Supplies
      2. 5.2.2 Function Generators
    3. 5.3 Equipment Setup
      1. 5.3.1 DC Power Supply Settings
      2. 5.3.2 Digital Multi-Meter Settings
      3. 5.3.3 Two-Channel Function Generator Settings
      4. 5.3.4 Oscilloscope Setting
      5. 5.3.5 Jumper (Shunt) Settings
      6. 5.3.6 Bench Setup Diagram
  7. 6 Power-Up and Power-Down Procedure
    1. 6.1 Power Up
    2. 6.2 Power Down
  8. 7 Test Waveforms (CL=0pF) With Different DT Configurations
    1. 7.1 DT Connected to VCCI (J-DT Option B in Table 1-1 )
    2. 7.2 DT Pin Floating or Left Open (J-DT Option A in Table 1-1 )
    3. 7.3 DT Pin Connected to RDT (J-DT Option C in Table 1-1 )
  9. 8 Schematic
  10. 9 Layout Diagrams
  11. 10List of Materials
  12. 11Revision History
  13. IMPORTANT NOTICE
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EVM USER'S GUIDE

Using the UCC21520EVM-286, UCC20520EVM-286, UCC21521CEVM-286, and UCC21530EVM-286

Trademarks

All trademarks are the property of their respective owners.

1 Introduction

Developed for high voltage applications where isolation and reliability is required, the UCC2x5xx delivers reinforced isolation of 5.7 kVRMS and a surge immunity tested up to 12.8 kV along with a common-mode transient immunity (CMTI) greater than 100 V/ns. It has the industry’s fastest propagation delay of 19 ns and the tightest channel-to-channel delay matching of less than 5 ns to enable high-switching frequency, high-power density, and efficiency.

The flexible, universal capability of the UCC2x5xx with up to 18-V VCCI and 25-V VDDA/VDDB allows the device to be used as a low-side, high-side, high-side/low-side, or half-bridge drivers with dual PWM input or single PWM input. With its integrated components, advanced protection features (UVLO, dead time and enable/disable), and optimized switching performances, the UCC2x5xx enables designers to build smaller, more robust designs for enterprise, telecom, automotive, and industrial applications with a faster time to market.

2 Description

The UCC2x5xx evaluation board has three independent screw terminal blocks for VCCI, VDDA, and VDDB. The 3-position headers with jumpers for all the key input signals, such as PWM INPUTs (INA, INB or PWM), dead time (DT) programming and enable/disable function (EN/DIS), allow designers to easily evaluate different protection functions. A variety of testing points also support most of the key feature probing of the UCC2x5xx. Moreover, the PCB layout is not only optimized with minimized loop area in each gate driver loop and power supply loop with bypassing capacitors, but the layout also supports high voltage test between the primary side and secondary side with 120-mil PCB board cutout. Importantly, the creepage distance between two output channels are maximized with bootstrap diode in footprint of TO252-2(DPAK), which facilitates high-voltage, half-bridge testing for a wide variety of power converter topologies. For detail device information, refer to UCC21520DW, UCC20520DW, UCC21521CDW and UCC21530DWK data sheets and TI's Isolated gate driver solutions.

 
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