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

4.5 PWM Dimming Waveforms

Figure 4-8, Figure 4-9, and Figure 4-10 illustrate the PWM dimming waveforms at 1%, 50%, and 95% duty cycles, respectively, in PWM dimming mode. Input voltage is 24 V, with 6 White LEDs in series used as load. The LED current is set at 1.0 A, PWM frequency is 100 Hz.

GUID-20221128-SS0I-Z28M-GWKF-PHVDG5XQWDPZ-low.png Figure 4-8 1% Duty Cycle 100-Hz PWM Dimming(TPS92200D1RXLR)
GUID-20221128-SS0I-TFXW-SZ83-BRLHXMZKBQH7-low.png Figure 4-9 50% Duty Cycle 100-Hz PWM Dimming(TPS92200D1RXLR)
GUID-20221128-SS0I-56BF-L3JV-0ZGBK3MRV24S-low.png Figure 4-10 95% Duty Cycle 100-Hz PWM Dimming(TPS92200D1RXLR)