ZHCSFM4B september   2016  – december 2021 UCC21521

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Power Ratings
    6. 6.6  Insulation Specifications
    7. 6.7  Safety-Related Certifications
    8. 6.8  Safety-Limiting Values
    9. 6.9  Electrical Characteristics
    10. 6.10 Switching Characteristics
    11. 6.11 Insulation Characteristics Curves
    12. 6.12 Typical Characteristics
  7. Parameter Measurement Information
    1. 7.1 Propagation Delay and Pulse Width Distortion
    2. 7.2 Rising and Falling Time
    3. 7.3 Input and Enable Response Time
    4. 7.4 Programmable Dead Time
    5. 7.5 Powerup UVLO Delay to OUTPUT
    6. 7.6 CMTI Testing
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 VDD, VCCI, and Under Voltage Lock Out (UVLO)
      2. 8.3.2 Input and Output Logic Table
      3. 8.3.3 Input Stage
      4. 8.3.4 Output Stage
      5. 8.3.5 Diode Structure in UCC21521
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable Pin
      2. 8.4.2 Programmable Dead Time (DT) Pin
        1. 8.4.2.1 Tying the DT Pin to VCC
        2. 8.4.2.2 DT Pin Connected to a Programming Resistor between DT and GND Pins
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Designing INA/INB Input Filter
        2. 9.2.2.2 Select External Bootstrap Diode and its Series Resistor
        3. 9.2.2.3 Gate Driver Output Resistor
        4. 9.2.2.4 Gate to Source Resistor Selection
        5. 9.2.2.5 Estimate Gate Driver Power Loss
        6. 9.2.2.6 Estimating Junction Temperature
        7. 9.2.2.7 Selecting VCCI, VDDA/B Capacitor
          1. 9.2.2.7.1 Selecting a VCCI Capacitor
          2. 9.2.2.7.2 Selecting a VDDA (Bootstrap) Capacitor
          3. 9.2.2.7.3 Select a VDDB Capacitor
        8. 9.2.2.8 Dead Time Setting Guidelines
        9. 9.2.2.9 Application Circuits with Output Stage Negative Bias
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 第三方产品免责声明
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Certifications
    4. 12.4 接收文档更新通知
    5. 12.5 支持资源
    6. 12.6 Trademarks
    7. 12.7 静电放电警告
    8. 12.8 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

Typical Characteristics

VDDA = VDDB = 12 V for 5 V and 8V UVLO, VDDA = VDDB = 15 V for 12V UVLO, VCCI = 3.3 V, TA = 25°C, No load unless otherwise noted.

GUID-7EB1668B-2900-4653-AE43-CE51C1FD0002-low.gif
Figure 6-4 Per Channel Current Consumption vs. Frequency (No Load, VDD = 12 V or 25 V)
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Figure 6-6 Per Channel Current Consumption (IVDDA/B) vs. Frequency (10-nF Load, VDD = 12 V or 25 V)
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Figure 6-8 Per Channel (IVDDA/B) Quiescent Supply Current vs Temperature (No Load, Input Low, No Switching)
GUID-5AB3A7AE-C432-4139-8B0C-29F86A385FCD-low.gif
Figure 6-10 UCC21521ADW and UCC21521DW Rising and Falling Times vs. Load (VDD = 12 V)
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Figure 6-12 Propagation Delay vs. Temperature
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Figure 6-14 Pulse Width Distortion vs. Temperature
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Figure 6-16 Propagation Delay Matching (tDM) vs. Temperature
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Figure 6-18 UCC21521ADW UVLO Threshold vs. Temperature
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Figure 6-20 UCC21521DW UVLO Threshold vs. Temperature
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Figure 6-22 UCC21521CDW UVLO Threshold vs. Temperature
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Figure 6-24 INA/B Low Threshold
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Figure 6-26 EN Threshold Hysteresis vs. Temperature
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Figure 6-28 EN High Threshold
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Figure 6-30 Dead Time Matching vs. Temperature (with RDT = 20 kΩ and 100 kΩ)
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Figure 6-5 Per Channel Current Consumption (IVDDA/B) vs. Frequency (1-nF Load, VDD = 12 V or 25 V)
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Figure 6-7 Per Channel (IVDDA/B) Supply Current Vs. Temperature (VDD=12V, No Load, Different Switching Frequencies)
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Figure 6-9 IVCCI Quiescent Supply Current vs Temperature (No Load, Input Low, No Switching)
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Figure 6-11 Output Resistance vs. Temperature
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Figure 6-13 Propagation Delay vs. VCCI
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Figure 6-15 Propagation Delay Matching (tDM) vs. VDD
GUID-E5F99605-5310-4AFB-B11A-1A4FD6DF5D5F-low.gif
Figure 6-17 UCC21521ADW UVLO Hysteresis vs. Temperature
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Figure 6-19 UCC21521DW UVLO Hysteresis vs. Temperature
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Figure 6-21 UCC21521CDW UVLO Hysteresis vs. Temperature
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Figure 6-23 INA/B Hysteresis vs. Temperature
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Figure 6-25 INA/B High Threshold
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Figure 6-27 EN Low Threshold
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Figure 6-29 Dead Time vs. Temperature (with RDT = 20 kΩ and 100 kΩ)
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Figure 6-31 Typical Output Waveforms (VDD=12V)