SLVUCE0 may   2023 TPS92200

PRODUCTION DATA  

  1.   1
  2.   TPS92200D1/D2RXLREVM 30-V, 1.5-A Buck LED Driver Evaluation Module
  3.   Trademarks
  4. 1Introduction
  5. 2Warnings and Cautions
  6. 3Description
    1. 3.1 Typical Applications
    2. 3.2 Test Setup
      1. 3.2.1 Connector Description
      2. 3.2.2 Input/Output Connection
  7. 4Performance Data and Typical Characteristics Curves
    1. 4.1 Efficiency
    2. 4.2 Line Regulation
    3. 4.3 Load Regulation
    4. 4.4 Analog Dimming
    5. 4.5 PWM Dimming Waveforms
  8. 5Schematic
  9. 6TPS92200EVM PCB Layout
  10. 7Bill of Materials

4.2 Line Regulation

Figure 4-4 shows the output current deviation ratio vs. input voltage in analog dimming mode. VDIM is 1.2V. 1 White LED is used as load. The LED current is set at 250mA, 500mA, 1.0A and 1.5A, respectively. The typical forward voltage of the White LED is 3.1 V at 1.5 A, and 2.8 V at 0.35 A.

GUID-8871F311-B294-4E43-9B84-733B4B45E79C-low.gifFigure 4-4 LED Current Deviation vs. Input Voltage in Analog Dimming Mode, 1 WLED