Overview
The BQ2057CTSTRG4 is a highly efficient linear battery charge management IC produced by Texas Instruments. Designed for single-cell and dual-cell lithium-ion (Li-ion) and lithium-polymer (Li-pol) battery packs, this component is ideal for cost-sensitive, compact portable electronics. Its advanced features include high-accuracy voltage and current regulation, battery conditioning, temperature monitoring, and charge termination, making it a versatile solution for a wide range of applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 4.5 to 12 | V | |
| Charge Voltage Accuracy | ±1% | ||
| Charge Current Range | Programmable | ||
| Dropout Voltage | 0.3 | V | |
| Operating Temperature Range | -40 to 85 | °C | |
| Package | 8-pin SOIC |
Key Features
- High-accuracy voltage and current regulation for precise charging.
- Integrated battery conditioning to revive deeply discharged cells.
- Optional temperature monitoring for enhanced safety.
- AutoComp™ dynamic compensation to reduce charging time.
- Low-power sleep mode for energy efficiency.
Applications
The BQ2057CTSTRG4 is widely used in various fields, including emergency call systems, telematics control units, portable medical devices, and gaming accessories. Its compact design and advanced features make it particularly suitable for applications requiring reliable and efficient battery charging solutions in portable electronics.
Q & A
1. What is the input voltage range for the BQ2057CTSTRG4?
The input voltage range is 4.5V to 12V.
2. How accurate is the charge voltage regulation?
The charge voltage regulation accuracy is ±1%.
3. Can the charge current be programmed?
Yes, the charge current is programmable.
4. What is the dropout voltage of this IC?
The dropout voltage is 0.3V.
5. What is the operating temperature range?
The operating temperature range is -40°C to 85°C.
6. What package does the BQ2057CTSTRG4 come in?
It comes in an 8-pin SOIC package.
7. Does it support temperature monitoring?
Yes, it supports optional temperature monitoring.
8. What is AutoComp™ dynamic compensation?
AutoComp™ dynamically compensates for the battery pack's internal impedance to reduce charging time.
9. Is there a low-power sleep mode?
Yes, it features a low-power sleep mode for energy efficiency.
10. What are the typical applications of this IC?
Typical applications include emergency call systems, telematics control units, portable medical devices, and gaming accessories.
