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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.主要特性
- 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
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评估工具
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图片 产品型号 制造商 描述 
STEVAL-ISB014V2 -- 基于STC3115的电池监测演示板，具有报警输出，用于燃气表应用 
STEVAL-WESU1 ST 用于快速上市的可穿戴传感器单元参考设计
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质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| STC3115AIJT |
批量生产
|
Chip Scale Package 0.4mm pitch | 工业 | Ecopack3 | |
| STC3115AIQT |
批量生产
|
UFDFPN 2X3 10L | 工业 | Ecopack3 | |
| STC3115IJT |
批量生产
|
Chip Scale Package 0.4mm pitch | 工业 | Ecopack3 | |
| STC3115IQT |
批量生产
|
UFDFPN 2X3 10L | 工业 | Ecopack3 |
|
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||
| STC3115AIQT | 7 distributors | 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | UFDFPN 2X3 10L | -40 | 85 | PHILIPPINES | 1.26 / 1k | |
| STC3115AIJT | 4 distributors |
批量生产
|
EAR99 | NEC | Tape And Reel | Chip Scale Package 0.4mm pitch | -40 | 85 | FRANCE | 1.176 / 1k | ||
| STC3115IJT | 4 distributors | 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | Chip Scale Package 0.4mm pitch | -40 | 85 | CHINA | ||
| STC3115IQT | 5 distributors | 立即购买 |
批量生产
|
EAR99 | NEC | Tape And Reel | UFDFPN 2X3 10L | -40 | 85 | PHILIPPINES | 1.26 / 1k | |
供货状态
批量生产ECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.176 / 1k