Texas Instruments
Maaaring representasyon ang larawan.
Tingnan ang mga detalye para sa mga detalye ng produkto.
BQ29330DBTRG4
Tingnan ang Detalye DataSheets

BQ29330DBTRG4

Product Overview

Category

BQ29330DBTRG4 belongs to the category of integrated circuits (ICs) specifically designed for battery protection.

Use

This product is primarily used for protecting lithium-ion and lithium-polymer batteries from overcharging, over-discharging, and short-circuiting. It ensures the safe and efficient operation of battery-powered devices.

Characteristics

  • Overvoltage Protection: Prevents the battery voltage from exceeding a safe threshold.
  • Undervoltage Protection: Safeguards against excessive discharge, preventing damage to the battery.
  • Short-Circuit Protection: Detects and isolates short circuits to prevent further damage.
  • Thermal Shutdown: Automatically shuts down the circuit in case of excessive temperature.
  • Low Quiescent Current: Minimizes power consumption when the device is not actively protecting the battery.

Package and Quantity

The BQ29330DBTRG4 is available in a small outline transistor (SOT) package. The package type is DBT, and it comes in tape and reel packaging. The quantity per reel is typically 2500 units.

Specifications

  • Operating Voltage Range: 2.5V to 16V
  • Overvoltage Threshold: Adjustable from 3.9V to 4.6V
  • Undervoltage Threshold: Adjustable from 1.8V to 3.2V
  • Short-Circuit Detection Threshold: 20mV to 80mV
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The BQ29330DBTRG4 has a total of 14 pins. Here is the detailed pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. SDA: Serial data input/output for communication
  4. SCL: Serial clock input for communication
  5. ALERT: Open-drain output indicating fault conditions
  6. TS: Thermistor input for temperature monitoring
  7. BAT: Battery voltage sense input
  8. VREF: Reference voltage output
  9. OV: Overvoltage protection threshold adjustment
  10. UV: Undervoltage protection threshold adjustment
  11. SC: Short-circuit detection threshold adjustment
  12. SRN: Sense resistor negative terminal
  13. SRP: Sense resistor positive terminal
  14. NC: No connection

Functional Features

  • Accurate Voltage Monitoring: The BQ29330DBTRG4 provides precise monitoring of battery voltage, ensuring optimal performance and protection.
  • Fault Detection and Reporting: It detects various fault conditions such as overvoltage, undervoltage, and short-circuit, and reports them through the ALERT pin.
  • Adjustable Thresholds: The thresholds for overvoltage, undervoltage, and short-circuit detection can be adjusted to suit specific battery requirements.
  • Low Power Consumption: The device has a low quiescent current, minimizing power consumption and extending battery life.

Advantages and Disadvantages

Advantages

  • Comprehensive Protection: Offers multiple layers of protection to safeguard batteries from various potential risks.
  • Customizable Thresholds: The adjustable thresholds allow flexibility in adapting to different battery specifications.
  • Compact Size: The small outline transistor package ensures space-efficient integration into battery-powered devices.
  • Low Power Consumption: The low quiescent current minimizes energy wastage when the device is idle.

Disadvantages

  • Limited Compatibility: The BQ29330DBTRG4 is specifically designed for lithium-ion and lithium-polymer batteries and may not be suitable for other battery chemistries.
  • Complexity: Proper configuration and understanding of the device's features are required for optimal usage.

Working Principles

The BQ29330DBTRG4 operates by continuously monitoring the battery voltage and comparing it to the user-adjustable thresholds. If the voltage exceeds the overvoltage threshold or falls below the undervoltage threshold, the device takes appropriate action to protect the battery. In case of a short circuit, the short-circuit detection mechanism triggers an immediate response to isolate the fault.

Application Field Plans

The BQ29330DBTRG4 finds applications in various battery-powered devices, including but not limited to: - Portable electronics (smartphones, tablets, laptops) - Electric vehicles - Power tools - Medical devices - Energy storage systems

Alternative Models

For those seeking alternative models with similar functionality, the following options are available: - BQ29200DBTRG4 - BQ29412DCTR - BQ294502DRVR

These alternatives offer comparable features and can be considered based on specific requirements.

In conclusion, the BQ29330DBTRG4 is a versatile integrated circuit designed for battery protection. Its comprehensive features, adjustable thresholds, and compact size make it suitable for a wide range of battery-powered applications. However, proper configuration

Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng BQ29330DBTRG4 sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of BQ29330DBTRG4 in technical solutions:

  1. Q: What is the BQ29330DBTRG4? A: The BQ29330DBTRG4 is a battery protection and cell balancing IC designed for use in multi-cell lithium-ion or lithium-polymer battery packs.

  2. Q: What is the maximum number of cells that can be protected by the BQ29330DBTRG4? A: The BQ29330DBTRG4 can protect up to 5 series-connected cells.

  3. Q: How does the BQ29330DBTRG4 provide overvoltage protection? A: The BQ29330DBTRG4 monitors the voltage of each cell and disconnects the load when any cell's voltage exceeds a programmable threshold.

  4. Q: Can the BQ29330DBTRG4 handle overcurrent conditions? A: Yes, the BQ29330DBTRG4 has built-in overcurrent protection and can disconnect the load when the current exceeds a programmable threshold.

  5. Q: Does the BQ29330DBTRG4 support cell balancing? A: Yes, the BQ29330DBTRG4 has integrated cell balancing functionality to equalize the voltage across cells in a battery pack.

  6. Q: What is the communication interface used by the BQ29330DBTRG4? A: The BQ29330DBTRG4 uses an I2C-compatible interface for communication with a microcontroller or host system.

  7. Q: Can the BQ29330DBTRG4 monitor individual cell temperatures? A: No, the BQ29330DBTRG4 does not have built-in temperature monitoring capabilities. External temperature sensors can be used for this purpose.

  8. Q: What is the operating voltage range of the BQ29330DBTRG4? A: The BQ29330DBTRG4 operates from a supply voltage range of 2.5V to 16V.

  9. Q: Is the BQ29330DBTRG4 suitable for automotive applications? A: Yes, the BQ29330DBTRG4 is designed to meet the requirements of automotive applications and has features like reverse battery protection.

  10. Q: Are there any evaluation boards or reference designs available for the BQ29330DBTRG4? A: Yes, Texas Instruments provides evaluation modules and reference designs that can help in the development and testing of solutions using the BQ29330DBTRG4.

Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.