TIDUF43 August   2024

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Terminology
    2. 1.2 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 TPS1213-Q1 45V, Low IQ, Automotive High-Side Switch Controller With Low-Power Mode and Adjustable Load Wakeup Trigger
      2. 2.3.2 INA296x-Q1 AEC-Q100, –5V to 110V, Bidirectional, 1.1MHz, 8V/μs, Ultra-Precise Current-Sense Amplifier
  9. 3System Design Theory
    1. 3.1 Low-Power Mode Considerations
    2. 3.2 Precharge Circuit Considerations
    3. 3.3 Short-Circuit Protection
    4. 3.4 LM74704-Q1 Enable
    5. 3.5 Headers
      1. 3.5.1 Headers for Configuring INA296B-Q1
      2. 3.5.2 Headers for Configuring TPS1213-Q1
    6. 3.6 Software Considerations
      1. 3.6.1 Fuse Channel Definition
      2. 3.6.2 Software Functions
    7. 3.7 Optional Output TVS Diode
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
    2. 4.2 Software
    3. 4.3 Test Setup
    4. 4.4 Test Results
      1. 4.4.1 State Transition
      2. 4.4.2 System IQ in Low-Power Mode
      3. 4.4.3 Precharge Test
      4. 4.4.4 Overcurrent Protection
      5. 4.4.5 PWM Overcurrent
      6. 4.4.6 Short-Circuit Protection
      7. 4.4.7 Thermal Testing
      8. 4.4.8 CISPR-25 Emissions Testing
        1. 4.4.8.1 Conducted Emissions Testing
        2. 4.4.8.2 Radiated Emissions Testing
        3. 4.4.8.3 Summary of Results
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
      3. 5.1.3 PCB Layout Recommendations
        1. 5.1.3.1 Layout Prints
      4. 5.1.4 Altium Project
      5. 5.1.5 Gerber Files
      6. 5.1.6 Assembly Drawings
    2. 5.2 Documentation Support
    3. 5.3 Support Resources
    4. 5.4 Trademarks
  12. 6About the Author

3.5.2 Headers for Configuring TPS1213-Q1

Headers were added for testing the TPS1213-Q1 independently of the MSPM0L1306-Q1.

Table 3-3 TPS1213-Q1 Jumper Configurations
JUMPER PIN CONFIGURATION DESCRIPTION
J5 INP 3V3 Turns on the FET of the main power path (Q2) if LPM = 3V3
GND Turns off the main power FET (Q2) if LPM = 3V3
J6 LPM 3V Forces the TPS1213-Q1 to Active mode. This disables the FET of the low-power path (Q3) and allows the FET of the main power path (Q2) to be toggled on or off by setting the INP pin (J5)
GND Forces the TPS1213-Q1 into low-power mode, turning on the FET of the low-power path (Q3) and disabling the FET of the main power path (Q2)
J8 SCP_TEST 3V3 Used for diagnosing short-circuit protection. This setting forces a short-circuit flag inside the TPS1213-Q1
GND Removes the short-circuit flag inside the TPS1213-Q1
CAUTION: Use of J5, J6, and J8 are not recommended if MSPM0L1306-Q1 is flashed and is on the board. Tie nRST to GND with J7 to prevent damage to the MSPM0L1306-Q1 if use is desired.