Other Parts Discussed in Thread: TPS7A47, TPS7A33, CSD19533KCS
Hello TI,
I am confused in following your TIDA-01371 ref. design. Could you please help me to understand this design correctly?
1. R40,R38, one 1MΩ shunt resistor is in parallel with a feedback cap of a opamp as an integrator, Both are cancelled with a red cross in datasheet, but are still in the schematic of Altium
What is the purpose of these 1MΩ resistor? the bleeding resistor to reset the integrator? Shall I keep them on board?
2. C26, C28 are also cancelled in the datasheet,
What function do they play in circuit, why are they cancelled in datasheet? Shall I keep them on board?
3. C16 and C7 are dual caps in the symmetrical design, why only C16 is canceled in datasheet? For simulation temporarily?
4. R34+C23 and R35+C24 are both the Zobel network. Why R34+C23 is canceled in datasheet? For simulation temporarily?
5. R36 and R9 are zero Ω . The shorted BJT Q8 and Q6, which control the input voltage of those LDOs. If they are cancelled for other temporary purpose, why they appear in the schematic of Altium?
These are all my questions.
Looking forward to your answers.