Part Number: BQ25570
I replaced ROV1 and ROV2 on BQ25570 EVM to set the over voltage protection threshold for lithium capacitor. While harvesting energy with SM811K04L 2.76V PV cell, the voltage of VSTOR and VBAT stop rising around 3.77V instead of the…
Part Number: BQ25505 Other Parts Discussed in Thread: BQ25570 , , BQ25504 Hi,
my end goal is building a USB C charger (for an eInk device) that is powered by a solar cell (ca 300 cm^2) in indoor lighting conditions.
The ouput power of the solar cell is…
Part Number: BQ25570EVM-206 Other Parts Discussed in Thread: BQ25570 Hello,
I have purchased BQ25570 EVM to use as a power booster for RF energy harvesting. I am connecting a RF energy harvesting circuit to BQ25570 EVM and looking at the VSTOR output.…
Part Number: BQ25570 Hi TI team,
Here's an elaboration of choice of VIN_DC capacitance, and it says if the source impedance is dominated by capacitive behavior, VIN_DC capacitor should scale according to capacitance of output source.
In my application…
Part Number: BQ25570 Other Parts Discussed in Thread: BQ25505 , BQ25504
Hello,
I am working on creating a tag that can harvest energy using RF signals and use the microcontroller to perform basic operations. In my circuit, I have 10 stage voltage doubling…
Part Number: BQ25570 Hi,
We are using BQ25570 on our design, and we are noticing a very strange issue.
If v_bat is powered from a supercapacitor (~3.5v up to 4.0), regulated output is only ~0.6V instead of 1.8v. If v_bat is powered from a regulated power…
Part Number: BQ25570 Other Parts Discussed in Thread: BQ25173 Hi,
We have recently designed a project that uses BQ25570 to harvest power from a solar panel (not currently connected), outputs a regulated 1.8V from a v_bat coming from a supercapacitor.…
Part Number: BQ25570 Hi team,
Can VREF_SAMP connect the divided resistors? I saw the pin definition said connected to 0.01uF.
But the sector 7.3.1 gives a formula about VREF_SAMP. Should it be VOC_SAMP's formula?
BR
Leo
Part Number: BQ25570 Hi TI team,
I have tried to implement the circuit for the BQ25570 in an application, however, the output voltage is too low. During testing, it is normally at the programmed 1.8V (or more specifically 1.84V since I didn't have the…