BQ29312APW

BQ29312APW provides protection for two, three, and four cell lithium or lithium-polymer batteries
7,408 有效庫存

BQ29312APW

有效庫存7,408

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

  • 製造商零件號 # : BQ29312APW

  • 包裝/封裝: TSSOP (PW)-24

  • 製造商: Texas Instruments

  • 產品分類 : Battery Management

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BQ29312APW 數據表
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詳細說明

The bq29312APW sets itself apart as a reliable and efficient battery management solution for 2-, 3-, or 4-cell lithium-ion battery packs. Its comprehensive protection features guard against a variety of potential hazards, including overcharge, overload, short-circuit, and voltage fluctuations. The inclusion of a 3.3-V LDO and I²C interface makes it easy to extract vital battery parameters and customize settings to suit specific requirements. By enabling cell balancing through a bypass path, users can optimize battery performance and extend its lifespan. With its user-friendly interface and programmable options, the bq29312APW offers a comprehensive solution for managing battery systems effectively

主要特徵

  • Rapid Charging Technology
  • Real-Time System Monitoring
  • Smart Battery Management
  • Automatic Sleep Mode Activation

應用

  • Advanced battery protection
  • Reliable power management
  • Compact and versatile

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) 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

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。

初步規格 BQ29312APW PDF 下載

常見問題解答

What is BQ29312APW?

The BQ29312APW is a precision voltage protection and monitoring integrated circuit (IC) designed by Texas Instruments. It is commonly used in battery management systems to protect and monitor the voltage of individual battery cells in series.

How Does BQ29312APW Work?

The BQ29312APW works by monitoring the voltage of each battery cell and providing overvoltage and undervoltage protection. It communicates with a host microcontroller to report the battery status and take corrective actions when necessary. The integrated circuit also features balancing functionality to ensure uniform charging and discharging of the battery cells.

How Many Pins does BQ29312APW have and What are the Functions of the Pinout Configuration?

The BQ29312APW is housed in a 20-pin TSSOP (Thin Shrink Small Outline Package) package. The pinout configuration includes:

  • VCC: Positive power supply pin.
  • VC: Common voltage supply pin.
  • SRP, SRN: Voltage protection reference pins for overvoltage and undervoltage, respectively.
  • SEL: Status and control pin.
  • BAT1, BAT2, BAT3, BAT4: Battery cell monitoring pins.
  • VC1, VC2, VC3, VC4: Voltage sense and balancing control pins for individual battery cells.
  • C1, C2, C3, C4: Capacitor connections for balancing control.
  • CB1, CB2, CB3, CB4: Capacitor connections for individual battery cell monitoring.

What are the Pros and Cons of BQ29312APW?

Pros:

  • Precision Protection: Provides accurate overvoltage and undervoltage protection for battery cells.
  • Integrated Balancing: Includes balancing functionality to ensure uniform cell charging and discharging.
  • High Integration: Combines voltage monitoring, protection, and balancing in a single IC, reducing external component count.
  • Communication Interface: Interfaces with a microcontroller for status reporting and control.
  • Space Efficiency: The 20-pin TSSOP package is space-efficient, suitable for compact designs.

Cons:

  • Complexity: Requires understanding of battery management system design and control algorithm implementation.
  • External Components: May require external MOSFETs and passive components for balancing and protection.

Are There Any Equivalents/Alternatives to BQ29312APW for Recommendation?

  • The LTC6803 from Analog Devices offers similar battery monitoring and balancing functionality.
  • Alternatives to the BQ29312APW include the MAX11080 from Maxim Integrated and the ISL94203 from Renesas Electronics.

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