SLVSH99A December   2023  – August 2025 TPS22996

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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 Electrical Characteristics
    6. 6.6 Switching Characteristics (TPS22996, TPS22996N)
    7. 6.7 Typical Characteristics: DC
    8. 6.8 Typical Characteristics: AC
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 ON and OFF Control
      2. 8.3.2 Input Capacitor (Optional)
      3. 8.3.3 Output Capacitor (Optional)
      4. 8.3.4 Quick Output Discharge (QOD)
      5. 8.3.5 Thermal Shutdown
      6. 8.3.6 Adjustable Rise Time
    4. 8.4 Device Functional Modes
  10. 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. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
      3. 9.4.3 Power Dissipation
  11. 10Device and Documentation Support
    1. 10.1 Third-Party Products Disclaimer
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DRL|8
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.3.6 Adjustable Rise Time

TPS22996 integrates a unique architecture for adjusting the rise time. The device senses the current flowing into the ON1 and ON2 (ION) pins and utilizes the information to set the rise time. This allows the user to adjust the rise time by connecting a series resistance that is determined by the ON Pin voltage. Refer to Table 8-1 and Table 8-2 for reference on setting the resistor.

Table 8-1 Typical Rise Time (VBIAS = 5.0V, RL = 10Ω, CL = 0.1μF)
ION VIN = 0.6V VIN = 1.8V VIN = 2.5V VIN = 3.3V VIN = 5.0V
20μA 810μs 1434μs 1760μs 1986μs 2580μs
100μA 215μs 364μs 445μs 519μs 688μs
250μA 90μs 151μs 185μs 220μs 291μs
Table 8-2 Typical Rise Time (VBIAS = 3.3V, RL = 10Ω, CL = 0.1μF)
ION VIN = 0.6V VIN = 1.8V VIN = 2.5V VIN = 3.3V
20μA 781μs 1489μs 1821μs 2154μs
100μA 200μs 374μs 451μs 536μs
250μA 93μs 175μs 207μs 244μs

The following equation can be used to estimate the series resistance required to meet the desired rise time.

Equation 1. RT = 1000 × (VON − 1.2V) / ION − Ri

where:

  • RT = Series resistance in kΩ.
  • Ri = Internal On Pin resistance in kΩ.
  • VON = ON pin voltage in V.
  • ION = Current flowing into the ON pin in μA.
TPS22996 TPS22996 Adjustable Rise Time Configuration Figure 8-1 TPS22996 Adjustable Rise Time Configuration