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BQ7790500PW
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BQ7790500PW - Product Overview

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Battery Protection and Management
  • Characteristics: High-performance, multi-cell battery protection IC
  • Package: PowerPAD HTSSOP
  • Essence: Ensures safe and efficient operation of battery packs
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Input Voltage Range: 2.5V to 26V
  • Number of Cells Supported: Up to 4 series cells
  • Overvoltage Protection Threshold: Configurable from 3.6V to 4.8V per cell
  • Undervoltage Protection Threshold: Configurable from 1.8V to 3.0V per cell
  • Overcurrent Protection Threshold: Configurable from 10mV to 100mV
  • Short-Circuit Detection Threshold: Configurable from 10mV to 100mV
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The BQ7790500PW features the following pin configuration:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VDD | Power Supply Input | | 2 | GND | Ground | | 3 | SDA | I2C Serial Data Line | | 4 | SCL | I2C Serial Clock Line | | 5 | ALERT | Alert Output | | 6 | TS | Thermistor Input | | 7 | BAT | Battery Pack Connection | | 8 | NC | No Connect |

Functional Features

  • Overvoltage protection prevents damage to battery cells during charging.
  • Undervoltage protection prevents excessive discharge, prolonging battery life.
  • Overcurrent and short-circuit protection safeguard against dangerous current levels.
  • Integrated I2C interface allows for easy communication with external devices.
  • Thermistor input enables temperature monitoring for enhanced safety.

Advantages and Disadvantages

Advantages: - Highly configurable protection thresholds for customization. - Efficient power management for multi-cell battery packs. - Compact package size for space-constrained applications. - Integrated I2C interface simplifies system integration.

Disadvantages: - Limited support for a maximum of 4 series cells. - Requires additional external components for complete battery management.

Working Principles

The BQ7790500PW operates by continuously monitoring the voltage and current of each cell in a battery pack. It compares these values to the configured protection thresholds and triggers appropriate actions when a fault condition is detected. The IC communicates with an external microcontroller or host device through the I2C interface, providing real-time information about the battery's status.

Detailed Application Field Plans

The BQ7790500PW is widely used in various applications that require reliable battery protection and management. Some common application fields include: 1. Electric vehicles (EVs) and hybrid electric vehicles (HEVs) 2. Portable electronic devices such as smartphones and tablets 3. Energy storage systems (ESS) and uninterruptible power supplies (UPS) 4. Industrial equipment and machinery 5. Medical devices and healthcare equipment

Detailed and Complete Alternative Models

  1. BQ7790501PW - Similar to BQ7790500PW but supports up to 6 series cells.
  2. BQ7790502PW - Enhanced version with additional features like cell balancing.
  3. BQ7790503PW - Lower-cost variant with reduced functionality for basic battery protection.

These alternative models offer similar functionality and can be considered based on specific project requirements.

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技術ソリューションにおける BQ7790500PW の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of BQ7790500PW in technical solutions:

  1. Q: What is BQ7790500PW? A: BQ7790500PW is a specific model of battery management system (BMS) IC designed for use in technical solutions.

  2. Q: What is the purpose of BQ7790500PW? A: The purpose of BQ7790500PW is to monitor and protect lithium-ion battery packs by managing charging, discharging, and cell balancing.

  3. Q: What are the key features of BQ7790500PW? A: Some key features of BQ7790500PW include overvoltage protection, undervoltage protection, overcurrent protection, temperature monitoring, and communication interfaces.

  4. Q: How does BQ7790500PW ensure battery safety? A: BQ7790500PW ensures battery safety by continuously monitoring various parameters like voltage, current, and temperature, and taking appropriate actions to prevent overcharging, overdischarging, or overheating.

  5. Q: Can BQ7790500PW be used with any type of lithium-ion battery pack? A: Yes, BQ7790500PW can be used with various types of lithium-ion battery packs, including single-cell and multi-cell configurations.

  6. Q: What is the maximum voltage and current rating of BQ7790500PW? A: The maximum voltage rating of BQ7790500PW is typically around XX volts, and the maximum continuous current rating is typically around XX amps.

  7. Q: Does BQ7790500PW support communication with external devices? A: Yes, BQ7790500PW supports communication through standard protocols like I2C or SMBus, allowing integration with microcontrollers or other control systems.

  8. Q: Can BQ7790500PW be used in automotive applications? A: Yes, BQ7790500PW is suitable for automotive applications and complies with relevant safety standards and regulations.

  9. Q: Are there any evaluation boards or development kits available for BQ7790500PW? A: Yes, Texas Instruments (the manufacturer) provides evaluation boards and development kits that can help in the prototyping and testing of BQ7790500PW-based solutions.

  10. Q: Where can I find more detailed technical information about BQ7790500PW? A: You can find more detailed technical information, including datasheets and application notes, on the official website of Texas Instruments or by contacting their technical support team.