Other Parts Discussed in Thread: TPS63900, TPS61299
Tool/software:
Hello,
We developed an IoT location and telemetry device that in its first version we did it with 3xAA alkaline batteries and it works quite well. Both the MCU and the IoT Module work from 4.5V to 3.2V.
Now we require to use the same PCB but with a battery pack of 2 or 3 LiSOCl2 size18505 + Super Capacitor and the option to add a booster. Maybe the TPS61021A or any other model that better fits our requirements.
The maximum peak currents is 400- mAh approx. for 2-3 seconds.
The requirements are as follows:
- To know if the Super Cap size is sufficient to recharge if the device reports every 5 minutes permanently on Cat-M mainly. It is to send a payload of about 300 bytes.
- Identify which booster is best suited to our device and battery chemistry.
- . The battery runs from 3.6 - 2.0V and we need to have the output voltage at 3.3V. The main objective is to maximize battery life. That the device continues to report in case the Super Capacitor goes below 3.2V and seeks to maximize the capacity of the batteries.
- In other cases it will report once or twice a day, and is expected to have a life of 5 to 7 years with a 2 battery pack totaling 8.2Ah nominal.
Battery LiSOCl2
Nominal Capacity 4100mAh *1
Nominal Voltage 3.6V
Max. Continuous Discharge Current 80mA
Max. Pulse Current 150mA *2
Weight Approx. 29g
Self-discharge Rate ≤ 1%
Operating Temperature -55~85℃
Sup Cap 14250
Nominal Voltage 3.67V
Nominal Capacity (3.67V）
Internal Impedance ≤250mΩ
Max. Continuous Discharge Current 800mA
Max. Pulse Current 2600mA
Max. Charging Current 60mA
Max. Charge Voltage 4.0V
Discharge End-off Voltage 2.5V
Thanks for your support in advance
