SLUSEZ1 December   2023 TPS4800-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    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. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Charge Pump and Gate Driver Output (VS, PU, PD, BST, SRC)
      2. 7.3.2 Capacitive Load Driving Using FET Gate (PU, PD) Slew Rate Control
      3. 7.3.3 Short-Circuit Protection
        1. 7.3.3.1 Short-Circuit Protection With Auto-Retry
        2. 7.3.3.2 Short-Circuit Protection With Latch-Off
      4. 7.3.4 Overvoltage (OV) and Undervoltage Protection (UVLO)
      5. 7.3.5 Reverse Polarity Protection
      6. 7.3.6 Short-Circuit Protection Diagnosis (SCP_TEST)
      7. 7.3.7 TPS48000-Q1 as a Simple Gate Driver
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Application Limitations
        1. 8.1.1.1 Short-Circuit Protection Delay
        2. 8.1.1.2 Short-Circuit Protection Threshold
    2. 8.2 Typical Application: Driving Power at all Times (PAAT) Loads
      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 Example
  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
    1. 11.1 Tape and Reel Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DGX|19
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.1 Application Information

The TPS48000-Q1 is a 100-V low IQ smart high side driver with protection and diagnostics. With wide operating voltage range of 3.5 V–80 V, the device is suitable for 12-V, 24-V and 48-V system designs. The device can withstand and protect the loads from negative supply voltages down to –65 V. It has strong 1.69-A/2-A peak source/sink gate driver enabling power switching using parallel FETs in high current system designs.

The device provides configurable short circuit protection using ISCP and TMR pins for adjusting the threshold and response time respectively. Auto-retry and latch-off fault behavior can be configured. With TPS48000-Q1, current sensing can be done either by an external sense resistor or by MOSFET VDS sensing. High or low side current sense resistor configuration is possible by using CS_SEL pin input.

Diagnosis of the integrated short circuit comparator can be done using external control on SCP_TEST input.The device indicates fault (FLT) on open drain output during during short circuit and input under voltage conditions. It also have a dedicate fault indication (FLT_GD) to indicate the gate drive UVLO condition.

Low Quiescent Current 43-µA operation enables always ON system designs. Quiescent current reduces to 1.5 μA (typical) with EN/UVLO low.