Other Parts Discussed in Thread: HDC1080, CC2640R2F-Q1, BQ25010
Hi, I'm new with the solar charging IC. I want to check whether the BQ25570 is suitable for my beaconing system or not. My system uses
- TI's HDC1080 Digital Humidity Sensor with Temperature Sensor
- TI's CC2640R2F-Q1 Bluetooth MCU as a Bluetooth beacon for humidity/temperature alarming
- RJD3555 rechargeable Lithium-Ion 500mAh coin cell
- Amorton AM-1417CA solar cell, 1.5V, 12.5uA at FL-200lux
Basically, I want to make this beacon to run regardless of the sunlight. If there is ambient sunlight, I want the charger IC to charge the rechargeable Lithium-Ion coin cell.
1. If I have understood correctly, the coin cell will be connected to VBAT and the AM-1417CA will be connected to VIN_DC with L1 and CIN, right?
2. Although it is shown in the application circuit, does the BQ25570 has an internal buck converter like the BQ25010 which can be used for powering the MCU and the HDC1080 sensor?
3. Have I chosen the proper charging IC(BQ25570) and solar cell(AM-1417CA)? I am willing to change both if needed.
Thanks for your time!
