Overview
The BQ27Z561YPHR-R2, manufactured by Texas Instruments, is a highly integrated, high-precision single-cell battery fuel gauge solution designed for 1-cell Li-ion battery packs. It utilizes the Impedance Track™ algorithm and is suitable for applications requiring accurate battery state-of-charge (SOC) monitoring. This component is targeted at developers and manufacturers in industries such as consumer electronics, portable devices, and industrial equipment, where battery management is critical. Its unique selling points include SHA-256 authentication for enhanced battery pack security, low-power operation, and advanced battery health monitoring capabilities.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Battery Chemistry | Li-Ion/Li-Polymer, LiFePO4 | ||
| Number of Series Cells | 1 | ||
| Communication Interface | HDQ, I2C | ||
| Battery Capacity (Min) | 100 | mAh | |
| Battery Capacity (Max) | 30000 | mAh | |
| Operating Temperature Range | -40 to 85 | °C | |
| Current Sense Resistor | ≥1mΩ | ||
| Sleep Mode Current | <11 | μA | Typical |
| Deep Sleep Mode Current | <9 | μA | Typical |
| Hibernate Mode Current | <3 | μA | Typical |
| Shutdown Mode Current | <1.9 | μA | Typical |
| Package | 12-pin DSBGA | Compact design |
Key Features
- Impedance Track™ algorithm for accurate SOC monitoring.
- SHA-256 authentication for enhanced battery pack security.
- Low-power operation with multiple sleep modes.
- Advanced battery health monitoring and diagnostics.
- Dual ADC for simultaneous current and voltage sampling.
- Wide current range support (1mA to 5A).
- JEITA-compliant charging algorithm.
- Compact 12-pin DSBGA package for space-constrained applications.
Applications
The BQ27Z561YPHR-R2 is ideal for a wide range of applications, including portable consumer electronics (e.g., smartphones, tablets), medical devices, power tools, and industrial equipment. Its precise battery monitoring and low-power operation make it particularly suitable for battery-powered devices where long battery life and reliable performance are critical. Additionally, its security features are beneficial for applications requiring secure battery management, such as IoT devices and wearable technology.
Q & A
1. What is the primary function of the BQ27Z561YPHR-R2?
It is a battery fuel gauge solution designed to accurately monitor the state of charge (SOC) in single-cell Li-ion battery packs.
2. What battery chemistries does it support?
It supports Li-Ion, Li-Polymer, and LiFePO4 chemistries.
3. What communication interfaces are available?
It supports HDQ and I2C interfaces for communication with the host system.
4. What is the operating temperature range?
The operating temperature range is -40°C to 85°C.
5. How does the SHA-256 authentication enhance security?
It provides secure communication and prevents unauthorized access to the battery pack.
6. What is the typical sleep mode current consumption?
The typical sleep mode current is less than 11μA.
7. Can it monitor battery health?
Yes, it includes advanced battery health monitoring and diagnostics.
8. What is the package type of the BQ27Z561YPHR-R2?
It comes in a compact 12-pin DSBGA package.
9. Is it suitable for low-power applications?
Yes, its low-power operation and multiple sleep modes make it ideal for battery-powered devices.
10. What are the key advantages of the Impedance Track™ algorithm?
It provides highly accurate SOC monitoring by dynamically tracking battery impedance.
