BQ29311PW
Battery Management 3-4-Cell Lithium-Ion Protection ICBQ29311PW
Battery Management 3-4-Cell Lithium-Ion Protection IC
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Manufacturer Part # : BQ29311PW
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Package/Case: TSSOP-24
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Brand: Texas Instruments
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Product Categories : Battery Management
Quality Assurance
Quality Assurance
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Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.
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BQ29311PW DataSheet
Pricing (USD)
Quantity | Unit Price | Ext. Price |
---|---|---|
1 | $18.464 | $18.46 |
200 | $7.146 | $1,429.20 |
500 | $6.895 | $3,447.50 |
1000 | $6.771 | $6,771.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Details
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
Key Features
- 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
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
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 |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
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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