BQ76PL455ATPFCTQ1

Product Overview

Category

BQ76PL455ATPFCTQ1 belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for battery management in various applications.

Characteristics

• Integrated circuit designed for battery management systems
• Provides accurate monitoring and protection for multi-cell lithium-ion battery packs
• Offers high accuracy voltage and temperature monitoring
• Supports up to 16 series-connected cells
• Features built-in balancing functionality for cell voltage equalization
• Enables communication with external microcontrollers through a serial interface

Package

BQ76PL455ATPFCTQ1 comes in a compact and durable package suitable for surface mount technology (SMT) assembly.

Essence

The essence of this product lies in its ability to efficiently manage and protect multi-cell lithium-ion battery packs, ensuring their optimal performance and longevity.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity per package. Please refer to the manufacturer's specifications for detailed packaging information.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Cell Voltage Measurement Accuracy: ±10mV
• Balancing Current: Up to 100mA per cell
• Communication Interface: I2C-compatible serial interface

Detailed Pin Configuration

The BQ76PL455ATPFCTQ1 IC has the following pin configuration:

1. VSS - Ground
2. SDA - Serial Data Line
3. SCL - Serial Clock Line
4. ALERT - Alert Output
5. VDD - Power Supply
6. BALx - Balancing Control Pins (x = 0 to 15)
7. VCx - Cell Voltage Measurement Pins (x = 0 to 15)

Functional Features

• Accurate voltage and temperature monitoring of each cell in a battery pack
• Overvoltage and undervoltage protection for individual cells
• Cell balancing functionality to equalize cell voltages
• Fault detection and reporting through the alert output pin
• Configurable I2C address for communication with external microcontrollers
• Low-power standby mode for energy efficiency

Advantages and Disadvantages

Advantages

• High accuracy voltage and temperature monitoring
• Integrated cell balancing functionality
• Wide input voltage range allows compatibility with various battery types
• Compact package suitable for space-constrained applications
• Configurable I2C address for easy integration into existing systems

Disadvantages

• Limited to lithium-ion battery applications
• Requires external microcontroller for full functionality
• May require additional components for complete battery management system implementation

Working Principles

The BQ76PL455ATPFCTQ1 IC works by continuously monitoring the voltage and temperature of each cell in a multi-cell lithium-ion battery pack. It compares these measurements against predefined thresholds to detect overvoltage, undervoltage, and overtemperature conditions. In case of an abnormal condition, the IC triggers the alert output pin and can initiate cell balancing to equalize cell voltages. Communication with an external microcontroller allows for configuration, data retrieval, and advanced battery management functions.

Detailed Application Field Plans

The BQ76PL455ATPFCTQ1 IC finds application in various fields, including but not limited to: - Electric vehicles (EVs) and hybrid electric vehicles (HEVs) - Portable electronic devices - Energy storage systems - Uninterruptible power supplies (UPS) - Industrial equipment

Detailed and Complete Alternative Models

1. BQ76930 - Similar battery management IC with support for up to 10 series-connected cells.
2. LTC6804 - Multi-cell battery monitor and balancer with extended communication capabilities.
3. MAX14920 - Integrated battery management IC with high voltage tolerance and fault detection features.

These alternative models offer similar functionality to the BQ76PL455ATPFCTQ1 and can be considered based on specific application requirements.

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