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Replies: 4
Views: 225
Part Number: TPS63050
Dear TI Team,
I have a problem designing the TPS63050.
We would like to use a potentiometer in FB.If you connect a FIXED resistor to R1 and connect a potentiometer to R2, it will operate normally up to 5V.However, if you design R1 and R2 with the potentiometer below, the output will not rise above 3.4V.
If R1 and R2 are variable at the same time, I would like to know if the voltage and current of the FB fluctuate and cause a problem.I want to know if there is a solution.
R1(RAW)
R2(RWB)
V_out
R_total
I_total
I_wa
I_wb
50.100KΩ
1.60V
100.2
15.97uA
68.850KΩ
31.350KΩ
2.56V
25.52uA
73.538KΩ
26.663KΩ
3.01V
30.00uA
77.444KΩ
22.756KΩ
3.52V
35.16uA
80.569KΩ
19.631KΩ
4.08V
40.75uA
84.475KΩ
15.725KΩ
5.10V
50.87uA
Thanks.
For more information on buck-boost devices have a look at ti.com/buckboost.
In reply to Julian Hagedorn:
In reply to Chun Youngsu:
Best regards,Brigitte
For more information on buck-boost devices have a look at www.ti.com/buckboost
ti.com/buckboost