Overview
The STC3117IJT, produced by STMicroelectronics, is a gas gauge IC designed for battery management in handheld applications. It incorporates the patented OptimGauge™ algorithm, which provides accurate battery state-of-charge (SOC) monitoring and tracks battery parameter changes due to operation conditions, temperature, and aging. The IC also offers a battery state-of-health (SOH) indication and features an alarm output for low SOC or low voltage conditions, as well as fault detection for missing or swapped batteries.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage (VCC) | 2.7 to 4.5 | V |
| Minimum Voltage for RAM Content Retention (VMIN) | 2.0 | V |
| Operating Temperature Range (TOPER) | -40 to 85 | °C |
| Maximum Junction Temperature (TJ) | 150 | °C |
| Current Consumption in Voltage Mode (ICC) | 40 | µA |
| Current Consumption in Mixed Mode (ICC) | 80 | µA |
| Current Consumption in Standby Mode (ISTBY) | 2 | µA |
| Package Type | 9-bump CSP | - |
| Package Dimensions | 1.49 x 1.594 mm | - |
Key Features
- Patented OptimGauge™ algorithm for accurate battery capacity calculation
- Robust initial open-circuit-voltage (OCV) measurement at power up
- Programmable low battery alarm
- Missing/swapped battery detection
- Average current internal calculation
- End-of-charge detection
- Internal temperature sensor
- Battery swap detection with protection against false battery insertion
- Low power consumption: 40 µA in voltage-only mode, 2 µA max in standby mode
Applications
- Mobile phones
- Multimedia players
- Digital cameras
- Portable medical equipment
Q & A
- What is the primary function of the STC3117IJT?
The primary function of the STC3117IJT is to provide accurate battery state-of-charge (SOC) monitoring and battery management for handheld applications.
- What algorithm does the STC3117IJT use for battery capacity calculation?
The STC3117IJT uses the patented OptimGauge™ algorithm for accurate battery capacity calculation.
- What are the operating temperature ranges for the STC3117IJT?
The operating temperature range for the STC3117IJT is -40 to 85°C.
- How does the STC3117IJT detect missing or swapped batteries?
The STC3117IJT features missing/swapped battery detection and provides an alarm output for such conditions.
- What is the power consumption of the STC3117IJT in voltage-only mode and standby mode?
The power consumption is 40 µA in voltage-only mode and 2 µA max in standby mode.
- What type of package does the STC3117IJT come in?
The STC3117IJT comes in a 9-bump CSP package with dimensions of 1.49 x 1.594 mm.
- Does the STC3117IJT have an internal temperature sensor?
Yes, the STC3117IJT includes an internal temperature sensor.
- How does the STC3117IJT communicate with other components?
The STC3117IJT uses an I2C interface for communication.
- What are some common applications of the STC3117IJT?
Common applications include mobile phones, multimedia players, digital cameras, and portable medical equipment.
- Can the STC3117IJT detect the end-of-charge condition?
Yes, the STC3117IJT features end-of-charge detection.
