SLUUCD4 April   2021 TPS92682-Q1

 

  1.   Trademarks
  2.   General Texas Instruments High Voltage Evaluation (TI HV EMV) User Safety Guidelines
  3. 1Description
    1. 1.1 Typical Applications
    2. 1.2 Warnings
    3. 1.3 Connector Description
  4. 2REACH Compliance
  5. 3Performance Specifications
    1. 3.1 SEPIC Voltage Regulator
    2. 3.2 SEPIC Current Regulator
  6. 4Performance Data and Typical Characteristic Curves
    1. 4.1 Startup Waveforms
    2. 4.2 Dynamic Performance
    3. 4.3 Faults
    4. 4.4 EMI Scan
  7. 5Schematic, PCB Layout, and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 Layout
    3. 5.3 Bill of Materials
  8. 6Software
    1. 6.1 Demonstration Kit Software Installation for MSP-EXP432E401Y LaunchPad Board
    2. 6.2 Installation Error Recovery
    3. 6.3 Programming the MSP-EXP432E401Y LaunchPad Board
  9. 7TPS92682EVM-125 Power UP and Operation
    1. 7.1 SPI Command
    2. 7.2 GUI Devices Window

4.2 Dynamic Performance

Figure 4-5 shows the load transient on the output of the CV channel-1. VOUT is set to 30 V and the output current is changed from 50mA to 1 A. The overshoot and undershoot caused by load transient is less than 1 V.

GUID-20200903-CA0I-W3KK-MNSS-WVP54VHD2T9M-low.gif
VIN = 12 V
Figure 4-5 CV SEPIC Load Transient Performance

Figure 4-6 shows PWM dimming of the CC channel-2. The ILED is programmed to 1A. A string of 5×LEDs are connected to the output of the channel-2. Internal PWM dimming is used and the frequency is set to 400 Hz.

GUID-20200903-CA0I-ZCFZ-Z8CH-VWXGRG4H6NMV-low.gif
VIN = 12 V
Figure 4-6 CC SEPIC PWM Dimming Performance