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BQ29311PW
Battery Management 3-4-Cell Lithium-Ion Protection IC
BQ29311PW
Battery Management 3-4-Cell Lithium-Ion Protection IC
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製造商零件號 # : BQ29311PW
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包裝/封裝: TSSOP-24
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製造商: Texas Instruments
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產品分類 : Battery Management
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例子
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管或託盤
BQ29311PW 數據表
價格 (USD)
| 數量 | 單價 | 總價 |
|---|---|---|
| 1 | $18.464 | $18.46 |
| 200 | $7.146 | $1,429.20 |
| 500 | $6.895 | $3,447.50 |
| 1000 | $6.771 | $6,771.00 |
這些價格會受到市場波動的影響，需要提交報價才能取得最新價格。
詳細說明
Experience peace of mind with the BQ29311PW as it empowers you to proactively address potential battery issues before they escalate. Its comprehensive protection features, combined with user-friendly programmable options, make it an ideal choice for applications requiring robust battery management capabilities. Trust the BQ29311PW to keep your lithium-ion battery pack operating smoothly and reliably in various operating conditions
主要特徵
- The BQ29XXX IC family is designed for battery stack applications
- It provides accurate monitoring and protection features
- Features include overvoltage, undervoltage, and overcurrent protection
- Integrated ADC allows for cell-by-cell monitoring
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Number of series cells (min) | 3 | Vin (max) (V) | 34 |
| Features | Cell balancing, High-side driver, I2C support, LDO output, Multi-cell support, Overcurrent in charging protection, Overcurrent in discharging protection, Separate MCU requirement, Short-current detection | Device type | Memory device |
| Number of series cells (max) | 4 | Operating temperature range (°C) | -25 to 85 |
| Rating | Catalog | Communication interface | I2C |
| Operating current (typ) (µA) | 140 |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is BQ29311PW?
The BQ29311PW is a precision voltage supervisor and protector IC designed by Texas Instruments. It is commonly used in battery management systems for monitoring and protecting lithium-ion battery packs in portable electronic devices, power tools, and electric vehicles.
How Does BQ29311PW Work?
The BQ29311PW works by continuously monitoring the individual cell voltages within a battery pack and providing overvoltage and undervoltage protection. It can also balance the cell voltages to ensure uniform charging and discharging across the cells. The IC features a serial communication interface for configuration and data retrieval.
How Many Pins does BQ29311PW have and What are the Functions of the Pinout Configuration?
The BQ29311PW is housed in a 20-pin TSSOP (Thin Shrink Small Outline Package) package. The pinout configuration includes:
- VCC: Power supply pin.
- GND, PGND: Ground pins.
- SRN, SRP: Serial communication interface pins.
- CELL1 to CELL5: Cell voltage monitoring pins.
- VC1 to VC5: External cell voltage measurement pins for balancing.
- UVLO1, OVLO1: Undervoltage and overvoltage lockout pins for cell 1.
- UVLO2, OVLO2: Undervoltage and overvoltage lockout pins for cell 2.
- ... (similar pins for other cells in the battery pack)
What are the Pros and Cons of BQ29311PW?
Pros:
- Battery Protection: Provides overvoltage and undervoltage protection for each cell in a battery pack.
- Cell Balancing: Balances the cell voltages to prolong battery life and improve safety.
- Integrated Solution: Offers a complete solution for battery management in a single IC.
- Serial Interface: Allows for easy configuration and data retrieval for system monitoring.
- Compact Package: The 20-pin TSSOP package is suitable for space-constrained designs.
Cons:
- Complexity: Requires proper configuration and understanding of battery management principles for optimal use.
- External Components: May require additional components for thermal management or high-current applications.
- Cost: Specialized battery management ICs may add to the overall cost of the system.
Are There Any Equivalents/Alternatives to BQ29311PW for Recommendation?
- The BQ76925 from Texas Instruments offers similar battery management functions with additional features such as temperature monitoring.
- Alternatives to the BQ29311PW include the LTC6803 from Analog Devices and the ISL94203 from Renesas Electronics.
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