Joseph,
Yes, the op-amp was completely removed. So was the 27k, and connections wired directly to output and output gnd. Functionally it works fine, and the buck-boost starts fine. Also at elevated temperatures.
I found the OPA2990 in the same package…
Hi Hamze,
Hamze Beydoun said: am i missing something or it is an issue with PSpice for TI not able to simulate the opamp bias points properly ?
Since the OPA188 is measuring on the high side of current sensing, your input Vcm should be very close…
Howdy, Zoey! After I made this original post, I had altered the sysconfig quite a bit. Still no salutation, however here are those changes:
The DAC Output pin is enabled. With these settings, I register a 0.035V output on pin PA15/19. Output of the…
Hi Niklas,
Thanks for your response. The converter has RES grounded, so hiccup mode should be turned off. I expect the batteries to be current limited initially and then be brought up to target voltage as they are charged. Also in reference to your…
Hi Drew,
1. OK, we understood that "raw data" setting is normally recommended, but inour system, something abnormal happenned.
In our system, when CDR is unlocked,
in "raw data" setting, the signal is worse than when DS100DF410 is not implemented…
Part Number: BQ25710
Hi team,
Let me ask about 0x12[1] EN_IDPM. I used the BQ25710EVM to check this feature. If I set 0x3F to 2A and 0x12[1]=0b (other values are POR), the IBUS can be more than 3A constantly.
Are ILIM2 and Icrit disabled if EN_IDPM…
When measuring VBUS directly at the input pins (Pin1) Vbus=4.92V. I also cut the USB-C cable to measure output current which was found to be 2.625A. So, Vbus > 3.88V (Programmed via REG00) and Ibus < 3A (Programmed via REG00). So in this case, there should…
For testing I am setting the limit to 500ma, with 14V out. To charge a Lead Acid battery (well, a simulated battery in an R&S NMG202). I can see the output drops to 12.43, measured on the PCB before the output connector. My load reads 430ma, so it's a…
Hi Gautam,
Thanks, it was a nice to pick up a quick vacation!
The design is looking good architecturally.
The ECX10x20 FET's seem like a great fit here for the required current drive.
It is also good to see a low current path in the transistor…
Hi Jeff,
Assuming PLP_Vout is greater than or equal to output voltage such that it also keeps the enable high, since Vin (PLP_Vout) values are not mentioned.
U8 (1.8V/3A):
Cff (C31) = 220pF is very large, we generally suggest 22pF to 100pF, also…
