STC3105：Battery monitor IC with alarm output for gas gauge applications
The STC3105 battery monitor includes the hardware functions required to implement a low-cost gas gauge for battery monitoring. The STC3105 uses accurate measurements of the battery voltage to estimate a battery’s state-of-charge (SOC). It uses a low cost sense resistor to precisely sense the charge or discharge states, detect light-load conditions without ambiguity for voltage measurements, and accurate SOC calculation. The coulomb counter method is used for SOC tracking in high-load conditions.
An alarm output signals a low SOC condition, and can also indicate low battery voltage. The alarm threshold levels are programmable.
The device is programmable through an I2C interface.
Key Features
- 0.5% accuracy battery voltage monitoring
- Low battery alarm output with programmable thresholds
- Low power: 60 μA in power-saving mode, 2 μA max in standby mode
- Ideal for implementation of robust gas gauge systems using open-circuit voltage and coulomb counter methods
- Small 3x2 mm package
Product Specifications
Application Notes
User Manuals
Presentations
Brochures
Solution Evaluation Tools
| Part Number | Manufacturer | Description |
|---|
| STEVAL-ISB013V1 | | Battery monitor demonstration board with alarm output for gas gauge applications based on the STC3105 |
Sample & Buy
| Part Number | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| STC3105IQT | TDFN 3.0X2.0X0.75 8L PITCH 0.65 | Tape And Reel | -40 | 85 | - | - | NEC | EAR99 | MALAYSIA |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| STC3105IQT | TDFN 3.0X2.0X0.75 8L PITCH 0.65 | Industrial | Ecopack3 | |
