Overview
The STC3115AIJT is a battery fuel gauge IC designed by STMicroelectronics. This component is part of the STC3115 series and is optimized for battery management in handheld and portable devices. It features advanced gas gauging capabilities, including the OptimGauge™ algorithm, Coulomb counter, and voltage-mode gas gauge operations. The IC is known for its high accuracy in battery voltage monitoring and state-of-charge (SOC) estimation, making it a reliable choice for various battery-powered applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Min Supply Voltage | 2.7 | V |
| Max Supply Voltage | 4.5 | V |
| Output Voltage | 4.2 | V |
| Number of Pins | 10 | - |
| Mount | Surface Mount | - |
| Ambient Temperature Range High | 85 | °C |
| Max Junction Temperature | 150 | °C |
| Min Operating Temperature | -40 | °C |
| Nominal Supply Current | 45 µA | - |
| Operating Supply Current | 100 µA | - |
| Interface | I2C | - |
| Packaging | Tape & Reel | - |
| Lead Free | Yes | - |
| RoHS Compliant | Yes | - |
Key Features
- OptimGauge™ Algorithm: Provides high accuracy in battery state-of-charge estimation.
- Battery Voltage Monitoring: 0.25% accuracy in battery voltage monitoring.
- Coulomb Counter: Tracks the SOC of the battery during high-rate charging or discharging.
- Internal Temperature Sensor: Simplifies temperature compensation and provides accurate temperature measurements.
- Programmable Low Battery Alarm: Signals low SOC conditions and low battery voltage with programmable threshold levels.
- Low Power Consumption: 45 µA in power-saving mode and 2 µA max. in standby mode.
- Micro-sized Packages: Available in 1.4 x 2.0 mm 10-bump CSP package and 2.0 x 3.0 mm DFN10 package.
- I2C Interface: Supports transfers up to 400 Kbit/s (fast mode).
Applications
- Mobile Phones: Ideal for battery management in smartphones and other mobile devices.
- Multimedia Players: Suitable for portable media players and audio devices.
- Digital Cameras: Used in camera devices to monitor battery health.
- Portable Medical Equipment: Applied in medical devices that require accurate battery monitoring.
Q & A
- What is the operating voltage range of the STC3115AIJT?
The operating voltage range is from 2.7 V to 4.5 V.
- What is the output voltage of the STC3115AIJT?
The output voltage is 4.2 V.
- How many pins does the STC3115AIJT have?
The STC3115AIJT has 10 pins.
- What is the maximum junction temperature of the STC3115AIJT?
The maximum junction temperature is 150°C.
- What interface does the STC3115AIJT use?
The STC3115AIJT uses an I2C interface.
- What is the power consumption in power-saving mode?
The power consumption in power-saving mode is 45 µA.
- Does the STC3115AIJT have a built-in temperature sensor?
Yes, it has an internal temperature sensor.
- Can the low battery alarm threshold be programmed?
Yes, the low battery alarm threshold is programmable.
- What are the typical applications of the STC3115AIJT?
Typical applications include mobile phones, multimedia players, digital cameras, and portable medical equipment.
- Is the STC3115AIJT RoHS compliant?
Yes, the STC3115AIJT is RoHS compliant.
