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TL494: TL494 operation mode

Rock Shao
Expert 2995 points
Part Number: TL494

Hi,

Could TL494 operation in the following mode?

1. switch frequency support 128Hz

2. operation in CC mode and fix duty and frequency

3. operation in CV mode and fix duty and frequency

4. operation in CP mode

Regards

Rock

  • 0
    TI__Guru 74115 points

    Hi,

    1. Based on datasheet, Figure 1 on page 7, 128 Hz is ok for fsw

    2. frequency is determined by RT and CT. it is fixed but there is tolerance. Please refer to page 5 section 7.6 for tolerance. CC mode is on external circuit. The IC does not have such operation mode. 

    3. same as above. 

    4. same as above.