Part Number: BQ25505 Other Parts Discussed in Thread: BQ25638 Tool/software: Hi Texas,
So i am looking for a chip that works like BQ25505, but with more functionalities.
- USB charging
- Solar charging (MPPT Tracking)
- Coloumb counter (to know the…
Part Number: BQ25505 Other Parts Discussed in Thread: BQ25628E Tool/software: We are looking to use the bq25505 in a power pack design. The primary reason for choosing the bq25505 is its ability to charge from a very low current input source (solar cell…
Hi Kaveh,
The BQ25570 uses the same boost topology as the BQ25505 and BQ25504 which requires that VBAT_OV be greater than VIN_OC. It just integrates a buck for load rail regulation.
Best Regards,
Juan Ospina
Part Number: BQ25505 Tool/software: Hi there
I'm using the BQ25505 for a small IoT-Device with a rechargeable battery and I'm having the problem that after a short voltage drop at VBAT_SEC from a battery disconnection (some few milliseconds), the…
Hello,
It all depends on how low your battery voltage on VBAT_SEC is. If it is above 3V, your VSTOR will be above 3V. Then you could use an LDO. There is a BQ25570 that has a buck output rail, but the maximum voltage it can have is limited by VSTOR.
…
Part Number: BQ25505 Other Parts Discussed in Thread: BQ25504 Tool/software: Hi,
I am looking for a PMIC similar to BQ25505 that can be used for power harvesting from a solar cell and storing energy into a battery. I need the device to have a small package…
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…
Not considering this condition 1. Solar panel input voltage: 4.5V or above (standard 5V) BQ25570RGRT, BQ25505RGRT, BQ24650RVAR, TI-BQ25504, TI-BQ25505 According to my request, which chip would be the most suitable and cost effective option to choose?I…
Part Number: BQ25505 Hi,
I am using BQ25505RGRT in my design. What will happen if a battery with reverse polarity is connected to this chip? I am not going to use series diode with my battery for reverse polarity protection, because of the voltage drop…
Part Number: BQ25505 Hi
I have a query need your help.
VBAT_SEC is connected to the battery 3.8V. Initially, there is no load and the voltage can be output normally, and then the voltage can be output normally when connected to the load. Initially, there…
