BQ29312APWR

Effective Inventory6,917

Battery Management 2-3-4 Cell Lithium Protection AFE

Quality Assurance

Quality Assurance

All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

ship1 ship2 ship3 ship4 ship5 ship6

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

We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.

questionContent1 questionContent2 questionContent3 questionContent4 ctc pelican express chunghwa post

About Payment

We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.

If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.

wire

WireTransfer

questionContent7

Paypal

cc

CreditCard

western

WesternUnion

mg

MoneyGram

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.

pg

Example

Tape and Reel

Tape and Reel

Cut Tape

Cut Tape

Tube or Tray

Tube or Tray

BQ29312APWR DataSheet

no-price

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

Interested Parts

Rapid Quote

Please submit RFQ for BQ29312APWR or email to us: Email: [email protected], we will contact you in 12 hours.

BQ29312APWR Details

The BQ29312APWR is a battery protection and monitoring IC from Texas Instruments, designed for use in battery management systems. This IC provides overcharge, overdischarge, and short circuit protection for single-cell Li-Ion or Li-Polymer batteries. It also features cell balancing functionality to enhance battery performance and lifespan. The BQ29312APWR is available in a small and compact package, making it suitable for space-constrained applications.

Pinout

  • 1 (VCU): Voltage Control Unit
  • 2 (VSS): Ground
  • 3 (VC2P): Second Cell Balancing Control
  • 4 (VC1P): First Cell Balancing Control
  • 5 (VC1N): First Cell Balancing Sense
  • 6 (VC2N): Second Cell Balancing Sense
  • 7 (EN1): Enable 1
  • 8 (EN2): Enable 2
  • 9 (CELL): Battery Cell Connection
  • 10 (VM): Voltage Monitoring
  • 11 (SCL): I2C Serial Clock
  • 12 (SDA): I2C Serial Data
  • 13 (CD0): Control Input 0
  • 14 (CD1): Control Input 1

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

  • Battery Protection: Offers overcharge, overdischarge, and short circuit protection for Li-Ion or Li-Polymer batteries.
  • Cell Balancing: Includes cell balancing functionality to equalize cell voltages and improve battery performance.
  • Small and Compact: Housed in a compact package for easy integration into space-constrained applications.
  • Enhanced Safety: Ensures safe operation by preventing battery damage and minimizing the risk of accidents.
  • I2C Interface: Utilizes an I2C interface for easy communication and control.

Application

  • Battery Management Systems: Ideal for use in battery management systems for single-cell Li-Ion or Li-Polymer batteries.
  • Portable Devices: Suitable for portable electronic devices with rechargeable batteries.
  • Energy Storage: Used in energy storage systems to protect and monitor battery cells.

Where to Use

The BQ29312APWR is suitable for applications that require battery protection and monitoring, particularly in battery management systems. It is commonly used in portable devices, energy storage systems, and other applications where battery safety and performance are crucial.

How to Use

Connect the BQ29312APWR to your battery system by wiring the appropriate battery cell connections to the CELL pin. Provide a voltage reference to the VCU pin and ensure proper grounding with the VSS pin. Use the enable pins (EN1 and EN2) to control the protection functions. Utilize the I2C interface (SCL and SDA) for communication and monitoring. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the BQ29312APWR illustrates how to integrate the IC into a battery management system. It includes connections for voltage control, cell balancing, enable pins, and communication interface, ensuring proper operation and battery protection.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

  • BQ2970: A similar battery protection and monitoring IC with comparable features and functionality from Texas Instruments.
  • MAX1783: An alternative battery protection and monitoring IC from Maxim Integrated with equivalent capabilities.

Complementary

The BQ29312APWR can be complemented by the BQ76940, which provides additional battery monitoring and protection features for multi-cell battery systems.

When selecting complementary ICs, ensure their capabilities and specifications align with your specific battery management system requirements.

Frequently Asked Questions

Q: What types of batteries are compatible with the BQ29312APWR?

A: The BQ29312APWR is designed for single-cell Li-Ion or Li-Polymer batteries. Ensure that the battery chemistry and voltage range align with the specifications provided in the datasheet.

Q: Does the BQ29312APWR support overcurrent protection?

A: No, the BQ29312APWR does not have built-in overcurrent protection. It primarily provides overcharge, overdischarge, and short circuit protection. Consider additional external circuitry for overcurrent protection if required for your application.

BQ29312APWR

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) 2 Vin (max) (V) 25
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 Protector
Number of series cells (max) 4 Operating temperature range (°C) -40 to 85
Rating Catalog Communication interface I2C
Operating current (typ) (µA) 60

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.

Preliminary Specification BQ29312APWR PDF Download

FAQs

What is BQ29312APWR?

The BQ29312APWR is a precision gas gauge and protection integrated circuit designed by Texas Instruments. It is used in battery management systems to monitor and protect individual cell voltages in lithium-ion or lithium-polymer battery packs.

How Does BQ29312APWR Work?

The BQ29312APWR works by monitoring the voltage of each cell in a battery pack and providing protection functions such as overvoltage, undervoltage, and overcurrent protection. It communicates with a host microcontroller using a serial interface to report battery status and control charging and discharging processes.

How Many Pins does BQ29312APWR have and What are the Functions of the Pinout Configuration?

The BQ29312APWR is housed in a 14-pin TSSOP (Thin Shrink Small Outline Package) package. The pinout configuration includes:

  • VCC: Power supply input pin.
  • GND: Ground pin.
  • SCL, SDA: Serial communication interface pins.
  • CELL1 to CELL5: Pins for connecting to individual battery cell voltages.
  • SRN, SDN: Alert and shutdown pins for system protection.

What are the Pros and Cons of BQ29312APWR?

Pros:

  • Cell Monitoring: Allows precise monitoring of individual cell voltages for accurate battery management.
  • Protection Functions: Provides essential protection features to prevent damage to battery cells.
  • Serial Interface: Enables communication with external microcontrollers for system integration.
  • Compact Package: Housed in a small TSSOP package for space-efficient designs.

Cons:

  • Complexity: Requires proper configuration and programming for optimal performance.
  • External Components: May require additional components such as resistors and capacitors for specific applications.

Are There Any Equivalents/Alternatives to BQ29312APWR for Recommendation?

  • The BQ76940 from Texas Instruments is a similar battery management IC with additional features.
  • Alternatives to the BQ29312APWR include the MAX14920 from Maxim Integrated and the LTC6804 from Analog Devices.

Recommend Parts

  • BQ2031SN-A5

    16-Pin Small Outline Integrated Circuit Package

    Brand: Texas Instruments Package/Case: SOIC-16

    3,465 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ2057WTS

    AutoComp Technology for optimized charging

    Brand: Texas Instruments Package/Case: TSSOP-8

    7,947 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ20Z95DBTR

    Get accurate battery life monitoring with the BQ20Z95DBTR gas gauge."

    Brand: Texas Instruments Package/Case: TSSOP-44

    2,000 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ24050DSQT

    1-cell, 1-A, Li-ion linear battery charger with automatic AC/USB detection 10-WSON 0 to 125

    Brand: Texas Instruments Package/Case: WSON-10

    5,034 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ24072TRGTR

    Battery Management 1.5A USB-Friendly Li Ion Batt Charger

    Brand: Texas Instruments Package/Case: VQFN-16

    7,143 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ24100RHLR

    Standalone 1cell 2A synchronous Buck battery charger 20-VQFN -40 to 85

    Brand: Texas Instruments Package/Case: VQFN-20

    4,593 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ24170RGYT

    Synchronous switch-mode operation for efficient battery charging

    Brand: Texas Instruments Package/Case: VQFN (RGY)-24

    7,268 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ24616RGET $5.538

    High current BQ24616RGET 28V Battery Management ICs with ROHS certification

    Brand: Texas Instruments Package/Case: VQFN (RGE)-24

    4,302 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ24610RGET $0.557

    Battery charger for lithium-ion and lithium-polymer batteries

    Brand: Texas Instruments Package/Case: VQFN (RGE)-24

    7,987 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ24650RVAR $1.870

    Battery Management Hi Eff Synch Sw-Mode Charger Controller

    Brand: Texas Instruments Package/Case: VQFN-16

    5,866 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ24773RUYT

    I2C 1-4 cell NVDC Buck battery charge controller with system monitor & processor hot indicator 28-WQFN -40 to 85

    Brand: Texas Instruments Package/Case: WQFN-28

    4,453 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ25883RGER $2.852

    I2C 2 cell 2A Boost battery charger for USB input in a WQFN package with Power Path 24-VQFN -40 to 85

    Brand: Texas Instruments Package/Case: VQFN-24

    3,766 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ27421YZFT-G1A

    Management Solution

    Brand: Texas Instruments Package/Case: DSBGA-9

    3,202 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ29312APW

    BQ29312APW provides protection for two, three, and four cell lithium or lithium-polymer batteries

    Brand: Texas Instruments Package/Case: TSSOP (PW)-24

    7,408 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ76200PW

    Battery Management Fast high side NCH drive

    Brand: Texas Instruments Package/Case: TSSOP-16

    6,990 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1

  • BQ7693003DBT

    Advanced IC for efficient and safe charging/discharging of lithium-ion cell

    Brand: Texas Instruments Package/Case: TSSOP (DBT)-30

    6,209 In Stock

    Cargo cycle: 3~7 Days

    The minimum order is 1