SLUUD71 December   2024 TPS922051

PRODUCTION DATA  

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
    5. 1.5 General TI High Voltage Evaluation User Safety Guidelines
  7. 2Hardware
    1. 2.1 Equipment Requirements
    2. 2.2 Setup
    3. 2.3 Power Connections
    4. 2.4 Test Points
  8. 3Implementation Results
    1. 3.1 Evaluation Setup
    2. 3.2 Performance Data and Results
  9. 4Hardware Design Files
    1. 4.1 Schematics
      1. 4.1.1 Schematic of LED034 (WSON Package), LED035 (HVSSOP Package)
      2. 4.1.2 Schematic of LED036 (SOT583 Package)
    2. 4.2 PCB Layouts
      1. 4.2.1 PCB Layout of LED034 (WSON Package)
      2. 4.2.2 PCB Layout of LED035 (HVSSOP Package)
      3. 4.2.3 PCB Layout of LED036 (SOT583 Package)
    3. 4.3 Bill of Materials (BOM)
  10. 5Compliance Information
    1. 5.1 Compliance and Certifications
  11. 6Additional Information
    1. 6.1 Trademarks
  12. 7Related Documentation

1.4 Device Information

The TPS922051/0 is a 2A / 1A non-synchronous Buck LED driver with 4.5V to 65V wide input range and PWM / analog dimming function. By integrating the low-side NMOS, the device is capable of driving LEDs with high power density and high efficiency. The device also supports common anode connection and single layer PCB design. The switching frequency is set at 400kHz or 1MHz.

The D1 version supports PWM dimming by configuring through the DIM input pins by means of simple high and low signals. The D2 version supports analog dimming by configuring through the DIM input pins by means of analog voltage signals. The device adopts an adaptive off-time current mode control along with smart and accurate sampling to enable fast PWM dimming and achieve high dimming ratio.

The TPS922051/0 also provides multiple systematic protections, including LED open and short, switching FET open and short, sense resistor open and short, and thermal shutdown.