SLVSH18B December   2024  – July 2025 TPS4HC120-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 Timing Characteristics, SNS
    7. 6.7 Switching Characteristics
    8. 6.8 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 Low Power Mode
        1. 7.3.2.1 Entry into LPM
        2. 7.3.2.2 During LPM
        3. 7.3.2.3 Exiting LPM
      3. 7.3.3 Accurate Current Sense
      4. 7.3.4 Adjustable Current Limit
      5. 7.3.5 Inductive-Load Switching-Off Clamp
      6. 7.3.6 Fault Detection and Reporting
        1. 7.3.6.1 Diagnostic Enable Function
        2. 7.3.6.2 Multiplexing of Current Sense
        3. 7.3.6.3 FAULT Reporting
        4. 7.3.6.4 Fault Table
      7. 7.3.7 Full Diagnostics
        1. 7.3.7.1 Short-to-GND and Overload Detection
        2. 7.3.7.2 Open-Load Detection
          1. 7.3.7.2.1 Channel On
          2. 7.3.7.2.2 Channel Off
        3. 7.3.7.3 Short-to-Battery Detection
        4. 7.3.7.4 Reverse-Polarity and Battery Protection
        5. 7.3.7.5 Thermal Fault Detection
          1. 7.3.7.5.1 Thermal Protection Behavior
      8. 7.3.8 Full Protections
        1. 7.3.8.1 UVLO Protection
        2. 7.3.8.2 Loss of GND Protection
        3. 7.3.8.3 Loss of Power Supply Protection
        4. 7.3.8.4 Reverse Polarity Protection
        5. 7.3.8.5 Protection for MCU I/Os
    4. 7.4 Device Functional Modes
      1. 7.4.1 Working Modes
        1. 7.4.1.1 SLEEP
        2. 7.4.1.2 DIAGNOSTIC
        3. 7.4.1.3 ACTIVE
        4. 7.4.1.4 STANDBY DELAY
        5. 7.4.1.5 LOW POWER MODE
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 EMC Transient Disturbances Test
    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

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DGQ|28
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.7 Switching Characteristics

VBB = 13.5V, TA = –40°C to 125°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
tDR Channel turn-on delay time (from Active) VBB = 13.5V, RL = 1kΩ 50% of EN to 10% of VOUT 30 55 µs
Channel turn-on delay time (from Sleep or LPM) 40 60
tDF Channel turn-off delay time (from Active) VBB = 13.5V, RL = 10Ω 50% of EN to 90% of VOUT 30 55 µs
Channel turn-off delay time (from LPM) 30 85
SRR VOUT rising slew rate VBB = 13.5V, 20% to 80% of VOUT,
RL = 10Ω		 0.1 0.3 0.55 V/µs
SRF VOUT falling slew rate VBB = 13.5V, 80% to 20% of VOUT,
RL = 10Ω		 0.1 0.3 0.5 V/µs
tON Channel turn-on time (Standby delay to Active) VBB = 13.5V, RL = 10Ω  50% of EN to 80% of VOUT 30 50 100 µs
tOFF Channel turn-off time (Active to Standby delay) VBB = 13.5V, RL = 10Ω  50% of EN to 20% of VOUT 30 70 145 µs
tON - tOFF  Turn-on and off matching 1ms enable pulse VBB = 13.5V,
RL = 10Ω		 –40 40 µs
200-µs enable pulse, VBB = 13.5V, RL = 10Ω –40 40
ΔPWM  PWM accuracy - average load current 200-µs enable pulse (1ms period),
VBB = 13.5V, RL = 10Ω 		 –25 25 %
PWM ≤ 500Hz, 50% duty cycle,
VBB = 13.5V, RL = 10Ω 		 –12 12
EON Switching energy losses during turn-on VBB = 13.5V, RL = 10Ω 0.5 mJ
EOFF Switching energy losses during turn-off VBB = 13.5V, RL = 10Ω 0.5 mJ