MicroScream: Under Voltage Alarm for LiPo/Li-Ion Batteries
Summary
"Alarm will sound at 6.0V for 2 cells and 9.0V for the 3 cell configuration.
Current draw: 5.5mA @ 7.4V (alarm off) : 29mA at 6.0V (alarm on).
Simple ‘dead bug’ construction weight was 2.9 grams.
Construction and use of this device (circuit) is at your own risk and liability."
* Note from RDL site Admin = I have used this circuit many times for triggering a FET at a specific voltages, in different circuits, as well as it's intended use in RC devices that lack a built-in alert for low LiPo voltage. Scale and adjust to your own peril/benefit.
Specifications
| Manufacturer | DigiKey |
|---|---|
| Category | Sensor Solutions |
| Sub-Category | Other Sensing Solutions |
| Eval Board |
Board not Stocked
|
| Purpose |
Under-Voltage Alarm for LiPo/Li-Ion Batteries
|
| Range |
2 ~ 3 Cells
|
| Sensing Method |
Shunt, Low Side
|
| Voltage In |
- Not Given
|
| Features | |
| Design Author |
Pokey Technologies Inc
|
| Component Count + Extras |
7 + 0
|
| Main I.C. Base Part |
TL431
|
| Date Created By Author | |
| Date Added To Library | 2021-12 |
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