SLVSCV8E December   2015  – June 2025 TPS4H160-Q1

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
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Pin Current and Voltage Conventions
      2. 7.3.2 Accurate Current Sense
      3. 7.3.3 Adjustable Current Limit
      4. 7.3.4 Inductive-Load Switching-Off Clamp
      5. 7.3.5 Fault Detection and Reporting
        1. 7.3.5.1 Diagnostic Enable Function
        2. 7.3.5.2 Multiplexing of Current Sense
        3. 7.3.5.3 Fault Table
        4. 7.3.5.4 STx and FAULT Reporting
      6. 7.3.6 Full Diagnostics
        1. 7.3.6.1 Short-to-GND and Overload Detection
        2. 7.3.6.2 Open-Load Detection
          1. 7.3.6.2.1 Channel On
          2. 7.3.6.2.2 Channel Off
        3. 7.3.6.3 Short-to-Battery Detection
        4. 7.3.6.4 Reverse Polarity Detection
        5. 7.3.6.5 Thermal Fault Detection
          1. 7.3.6.5.1 Thermal Shutdown
      7. 7.3.7 Full Protections
        1. 7.3.7.1 UVLO Protection
        2. 7.3.7.2 Loss-of-GND Protection
        3. 7.3.7.3 Protection for Loss of Power Supply
        4. 7.3.7.4 Reverse-Current Protection
        5. 7.3.7.5 MCU I/O Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Working Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Examples
        1. 8.4.2.1 Without a GND Network
        2. 8.4.2.2 With a GND Network
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2.3 Application Curves

Figure 8-2 shows a test example of soft-start when driving a big capacitive load. Figure 8-3 shows an expanded waveform of the output current.

TPS4H160-Q1 Driving a Capacitive Load With Adjustable Current Limit
VS = 12 VINx = ↑Current limit = 1 A
Load current = 0.4 ACL = 2.3 mFCH1 = INx
CH2 = FAULTCH3 = output voltageCH4 = output current
Figure 8-2 Driving a Capacitive Load With Adjustable Current Limit
TPS4H160-Q1 Driving a Capacitive Load, Expanded Waveform
VVS = 12 VINx = ↑Current limit = 1 A
Load current = 0.4 ACL = 2.3 mFCH1 = INx
CH2 = FAULTCH3 = output voltageCH4 = output current
Figure 8-3 Driving a Capacitive Load, Expanded Waveform

Figure 8-4 shows a test example of PWM-mode driving. Figure 8-5 shows the expanded waveform of the rising edge. Figure 8-6 shows the expanded waveform of the falling edge.

TPS4H160-Q1 PWM Signal Driving
VVS = 13.5 V INx = 200-Hz PWM at 50% duty cycle CH1 = INx signal
CH2 = CS voltage CH3 = output voltage CH4 = output current
Figure 8-4 PWM Signal Driving
TPS4H160-Q1 Expanded Waveform of Falling Edge
VVS = 13.5 V INx = 200-Hz PWM at 50% duty cycle CH1 = INx signal
CH2 = CS voltage CH3 = output voltage CH4 = output current
Figure 8-6 Expanded Waveform of Falling Edge
TPS4H160-Q1 Expanded Waveform of Rising Edge
VVS = 13.5 V INx = 200-Hz PWM at 50% duty cycle CH1 = INx signal
CH2 = CS voltage CH3 = output voltage CH4 = output current
Figure 8-5 Expanded Waveform of Rising Edge