SCES955 September   2023 TXH0137D-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1Features
  3. 2Applications
  4. 3Description
  5. 4Pin Configuration and Functions
  6. 5Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 Typical Characteristics
  7. 6Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
    4. 6.4 Device Functional Modes
      1. 6.4.1 Resistive Load Drive
      2. 6.4.2 ON State Input Current
      3. 6.4.3 High-Drive Outputs
  8.   Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 TTL and other Logic Inputs
        2. 7.2.2.2 High-Impedance Input Drivers
        3. 7.2.2.3 Output Low Voltage
      3. 7.2.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
      3. 7.4.3 Thermal Considerations
        1. 7.4.3.1 Improving Package Thermal Performance
  9. 7Device and Documentation Support
    1. 7.1 Receiving Notification of Documentation Updates
    2. 7.2 Support Resources
    3. 7.3 Trademarks
    4. 7.4 Electrostatic Discharge Caution
    5. 7.5 Glossary
  10. 8Revision History
  11. 9Mechanical, Packaging, and Orderable Information
    1. 9.1 Packaging Option Addendum
    2. 9.2 Tape and Reel Information
    3. 9.3 Mechanical Data

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • PW|14
Thermal pad, mechanical data (Package|Pins)

6.4.2 ON State Input Current

The current into the inputs is defined in the electrical characteristics table for input voltages from 1.5 V to 5 V. At higher voltages, this leakage increases, and the input current can be estimated using the approximate clamp voltage for the overshoot-protection diode which is, 6.4 V. Equation 2 shows how to approximate input current for input voltages greater than 6.4 V:

Equation 2. I I N ( O N )   =     V I N 1   M Ω   +   V I N   -   6.4   V 50   k Ω

where

  • VIN is the input voltage
  • 1 MΩ is the input pull-down resistance
  • 50 kΩ is the input series resistance
  • 6.4 V is the approximate clamp voltage for the OVP diode