Overview
The BQ20Z45DBT-R1 is a sophisticated battery management IC produced by Texas Instruments. This component is designed to provide comprehensive battery monitoring and protection, making it an essential part of smart battery systems. Although it is not recommended for new designs due to its end-of-life status, it remains a significant component in existing systems. The BQ20Z45DBT-R1 integrates advanced features such as Impedance Track™ gas gauging technology, full array of programmable protection features, and lifetime data logging, ensuring high accuracy and reliability in battery management.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Package Type | 38-Pin TSSOP (DBT) | |
| Operating Temperature Range | -40°C to 85°C | |
| Power Modes | Normal, Sleep, Shutdown | |
| Voltage Reference | 1.215 V to 1.230 V | |
| High Frequency Oscillator | 4.194 MHz | |
| Sense Resistor Range | 5 mΩ to 20 mΩ | |
| ADC Type | Delta-sigma ADC for current and voltage measurement |
Key Features
- Impedance Track™ Gas Gauging Technology: Continuously analyzes battery impedance for superior gas-gauging accuracy.
- Programmable Protection Features: Includes cell over/undervoltage, charge and discharge overcurrent, short circuit, and overtemperature protection.
- Lifetime Data Logging: Stores important measurements for warranty and analysis purposes.
- SHA-1 Authentication: Supports authentication by the host using SHA-1.
- Charge Control Features: Supports JEITA temperature ranges, complex charging profiles, and cell balancing algorithms.
- Power Modes: Normal, Sleep, and Shutdown modes to reduce power consumption.
- Integrated Analog Front-End (AFE): Includes short-circuit and overload protection, and an internal temperature sensor.
Applications
- Notebook PCs: Ideal for managing battery packs in portable computers.
- Medical and Test Equipment: Used in medical devices and test equipment requiring precise battery management.
- Portable Instrumentation: Suitable for various portable instruments that require reliable battery monitoring.
Q & A
- What is the BQ20Z45DBT-R1 used for?
The BQ20Z45DBT-R1 is used for comprehensive battery management, including gas gauging, protection, and data logging in smart battery systems.
- What is the operating temperature range of the BQ20Z45DBT-R1?
The operating temperature range is -40°C to 85°C.
- What type of package does the BQ20Z45DBT-R1 come in?
The BQ20Z45DBT-R1 comes in a 38-Pin TSSOP (DBT) package.
- Does the BQ20Z45DBT-R1 support authentication?
- What are the power modes available in the BQ20Z45DBT-R1?
The BQ20Z45DBT-R1 supports Normal, Sleep, and Shutdown power modes.
- What is the purpose of the Impedance Track™ technology in the BQ20Z45DBT-R1?
The Impedance Track™ technology continuously analyzes battery impedance to provide superior gas-gauging accuracy.
- Does the BQ20Z45DBT-R1 have built-in protection features?
- What kind of data does the BQ20Z45DBT-R1 log for lifetime analysis?
The BQ20Z45DBT-R1 logs various lifetime measurements including maximum and minimum temperatures, voltages, currents, and powers for warranty and analysis purposes.
- Is the BQ20Z45DBT-R1 recommended for new designs?
No, the BQ20Z45DBT-R1 is not recommended for new designs as it is reaching end-of-life.
- What are some common applications of the BQ20Z45DBT-R1?
