Overview
The BQ78350DBT is a lithium-ion and lithium iron phosphate battery management controller produced by Texas Instruments. This component is designed to work in conjunction with the bq769x0 series of analog front-end (AFE) protection devices, providing a comprehensive battery management system (BMS) solution. It is targeted at applications requiring precise battery monitoring, protection, and balancing, such as electric vehicles, portable electronics, and industrial equipment. The BQ78350DBT stands out for its high integration, accuracy, and support for multiple battery chemistries, making it a competitive choice for developers seeking to accelerate product development and reduce time-to-market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Function | Battery Management Controller | - | - |
| Battery Chemistry | Lithium-Ion, Lithium Iron Phosphate | - | - |
| Battery Cells Supported | 3 to 15 | - | - |
| Interface | SMBus 1.1 | - | - |
| Protection Features | Overcurrent, Overtemperature, Over/Under Voltage | - | - |
| Operating Temperature | -40 to 85 | °C | - |
| Package | 30-TSSOP | - | 4.40mm wide |
Key Features
- Precise battery monitoring and state-of-health (SoH) estimation.
- Integrated battery balancing functionality.
- Comprehensive voltage, current, and temperature protection.
- Support for LED or LCD display configurations for capacity reporting.
- Non-volatile memory for storing battery history and diagnostic data.
Applications
The BQ78350DBT is widely used in applications requiring advanced battery management, including electric vehicles, portable medical devices, uninterruptible power supplies (UPS), and industrial equipment. Its ability to support multiple battery chemistries and provide precise monitoring and protection makes it ideal for ensuring the safety, reliability, and longevity of battery systems in these fields.
Q & A
1. What is the primary function of the BQ78350DBT?
The BQ78350DBT is a battery management controller designed to monitor, protect, and balance lithium-ion and lithium iron phosphate batteries.
2. How many battery cells does the BQ78350DBT support?
It supports 3 to 15 battery cells.
3. What communication interface does the BQ78350DBT use?
It uses the SMBus 1.1 interface for data communication.
4. What protection features are included in the BQ78350DBT?
It includes overcurrent, overtemperature, and over/under voltage protection.
5. What is the operating temperature range of the BQ78350DBT?
It operates within a temperature range of -40°C to 85°C.
6. Can the BQ78350DBT be used with lithium iron phosphate batteries?
Yes, it supports both lithium-ion and lithium iron phosphate batteries.
7. Does the BQ78350DBT support battery balancing?
Yes, it includes integrated battery balancing functionality.
8. What package type is the BQ78350DBT available in?
It is available in a 30-TSSOP package.
9. Can the BQ78350DBT store battery history data?
Yes, it has non-volatile memory for storing battery history and diagnostic data.
10. What are the typical applications of the BQ78350DBT?
Typical applications include electric vehicles, portable electronics, UPS systems, and industrial equipment.
