Overview
The BQ2057TSNTR is a lithium-ion and lithium-polymer battery charging management IC manufactured by Texas Instruments. Designed for cost-sensitive, compact portable electronics, this IC integrates high-precision current and voltage regulation, battery conditioning, temperature monitoring, and charge termination. It features AutoComp™ dynamic compensation to optimize charging efficiency and is available in an 8-pin SOIC package. The BQ2057TSNTR is ideal for single-cell (4.1V or 4.2V) and dual-cell (8.2V or 8.4V) battery packs, making it suitable for a wide range of applications in consumer electronics and industrial devices.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Package | 8-pin SOIC | - | - |
| Battery Chemistry | Li-Ion, Li-Polymer | - | - |
| Input Voltage Range | 4.5 to 15 | V | - |
| Output Voltage | 4.1, 4.2, 8.2, 8.4 | V | Selectable |
| Charging Current | Programmable | A | - |
| Operating Temperature | -20 to +70 | °C | - |
| Voltage Regulation Accuracy | ±1% | - | - |
| Features | AutoComp™, Temperature Monitoring | - | - |
Key Features
- High-precision current and voltage regulation for efficient charging.
- AutoComp™ dynamic compensation to reduce charging time.
- Integrated battery conditioning for deeply discharged cells.
- Temperature monitoring for safe charging operations.
- Programmable charging current and charge termination.
- Compact 8-pin SOIC package for space-constrained designs.
Applications
The BQ2057TSNTR is widely used in portable electronic devices such as smartphones, tablets, and digital cameras. It is also suitable for industrial applications like handheld scanners, medical devices, and portable measurement instruments. Its ability to manage single and dual-cell battery packs makes it versatile for various power management needs in consumer and industrial electronics.
Q & A
1. What is the input voltage range for the BQ2057TSNTR?
The input voltage range is 4.5V to 15V.
2. What battery types does the BQ2057TSNTR support?
It supports lithium-ion (Li-Ion) and lithium-polymer (Li-Polymer) batteries.
3. What is the output voltage of the BQ2057TSNTR?
The output voltage options are 4.1V, 4.2V, 8.2V, and 8.4V.
4. Does the BQ2057TSNTR support temperature monitoring?
Yes, it includes temperature monitoring for safe charging.
5. What is AutoComp™ in the BQ2057TSNTR?
AutoComp™ is a feature that dynamically compensates for battery impedance to optimize charging efficiency.
6. What is the package type of the BQ2057TSNTR?
It is available in an 8-pin SOIC package.
7. Can the BQ2057TSNTR charge dual-cell battery packs?
Yes, it supports dual-cell battery packs with output voltages of 8.2V and 8.4V.
8. What is the voltage regulation accuracy of the BQ2057TSNTR?
The voltage regulation accuracy is better than ±1%.
9. Is the BQ2057TSNTR suitable for industrial applications?
Yes, it is suitable for industrial devices such as handheld scanners and medical equipment.
10. What is the operating temperature range of the BQ2057TSNTR?
The operating temperature range is -20°C to +70°C.
