ZHCSJX8B August   2018  – July 2019 TLV803E , TLV809E

ADVANCE INFORMATION for pre-production products; subject to change without notice.  

  1. 特性
  2. 应用
  3. 说明
    1.     Device Images
      1.      典型应用
  4. 修订历史记录
  5. Device Comparison Table
  6. Pin Configuration and Functions
    1.     Pin Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Timing Diagram
    8. 7.8 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Input Voltage (VDD)
      2. 8.3.2 VDD Hysteresis
      3. 8.3.3 VDD Glitch Immunity
      4. 8.3.4 Output Logic
        1. 8.3.4.1 RESET Output, Active Low
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation (VDD > VDD(min))
      2. 8.4.2 VDD Between VPOR and VDD(min)
      3. 8.4.3 Below Power-On-Reset (VDD < VPOR)
  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
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 器件命名规则
    2. 12.2 文档支持
      1. 12.2.1 相关文档
    3. 12.3 相关链接
    4. 12.4 接收文档更新通知
    5. 12.5 社区资源
    6. 12.6 商标
    7. 12.7 静电放电警告
    8. 12.8 Glossary
  13. 13机械、封装和可订购信息

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

VDD Glitch Immunity

These devices are immune to quick voltage transient or excursion on VDD. Sensitivity to transients depends on both transient duration and transient overdrive. Overdrive is defined by how much VDD exceeds the specified threshold. Threshold overdrive is calculated as a percent of the threshold in question, as shown in Equation 1.

Equation 1. Overdrive = | (VDD / VIT– – 1) × 100% |

where

  • VIT– is the threshold voltage
  • VDD is the input voltage crossing VIT–
TLV803E TLV809E Overdrive.gifFigure 24. Overdrive vs Pulse Duration

TLV803E and TLV809E devices have built-in glitch immunity as shown in Figure 25. When VDD falls below VIT-, RESET transitions low to indicate a fault condition after the propagation delay high-to-low (tPDHL). When VDD rises above VIT+, RESET only transitions to logic high indicating no more fault condition only if VDD remains above VIT+ for longer than the reset delay (tD).

TLV803E TLV809E TLV803EA29_fault_GI.gifFigure 25. Glitch Immunity when VDD rises above VIT+ for less than RESET Delay (TLV803EA29)