We are designing a PWM voltage mode control circuit for a buck converter using TL5001. The design requires a frequency of 10 KHz(KW power IGBT application).
There is a discrepancy in the data sheet of TL5001 (SLVS084F). The highlights on the first page say that the oscillator frequency is 20 KHz to 500 KHz. On page 3 in the "oscillator/PWM" section it says that for the range of 20KHz to 500KHz, Rt ranges from 15K to 250K. But in the graph in Figure 5 it suggests that for the frequency of 20 KHz we require Rt of about 500K.
Please clarify whether we can go to 20 KHz (Rt = 500K) and also 10 KHz (Rt = 800K)
Similarly, in the case of tps40200 (SLUS659G), can we go down to 10 KHz. It will be really helpful if you can shed light on this.