STC3115：Gas gauge IC with alarm output for handheld applications
The STC3115 includes the hardware functions required to implement a low-cost gas gauge for battery monitoring. The STC3115 uses current sensing, Coulomb counting and accurate measurements of the battery voltage to estimate the state-of-charge (SOC) of the battery. An internal temperature sensor simplifies implementation of temperature compensation.
An alarm output signals a low SOC condition and can also indicate low battery voltage. The alarm threshold levels are programmable.
The STC3115 offers advanced features to ensure high performance gas gauging in all application conditions.
Key Features
- OptimGauge™ algorithm
- 0.25% accuracy battery voltage monitoring
- Coulomb counter and voltage-mode gas gauge operations
- Robust initial open-circuit-voltage (OCV) measurement at power up
- Programmable low battery alarm
- Internal temperature sensor
- Battery swap detection
- Low power: 45 μA in power-saving mode, 2 μA max in standby mode
- Micro-sized packages:
- 1.4 x 2.0 mm 10-bump CSP package
- 2.0 x 3.0 mm DFN10 package
产品规格
应用手册
用户手册
简报
手册
Evaluation Tool Software
| 型号 | 制造商 | Description |
|---|
| STSW-BAT001 | ST | STC3115 Open source driver |
解决方案评估工具
| 型号 | 制造商 | Description |
|---|
| STEVAL-ISB014V2 | | Battery monitoring with alarm output for gas gauge applications based on the STC3115 |
| STEVAL-WESU1 | ST | Wearable sensor unit reference design for fast time to market |
样片和购买
| 型号 | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| STC3115AIQT | UFDFPN 2X3 10L | Tape And Reel | -40 | 85 | - | - | NEC | EAR99 | - |
| STC3115AIJT | Chip Scale Package 0.4mm pitch | Tape And Reel | -40 | 85 | - | - | NEC | EAR99 | CHINA |
| STC3115IJT | Chip Scale Package 0.4mm pitch | Tape And Reel | -40 | 85 | - | - | NEC | EAR99 | CHINA |
| STC3115IQT | UFDFPN 2X3 10L | Tape And Reel | -40 | 85 | - | - | NEC | EAR99 | PHILIPPINES |
质量和可靠性
