BQ28550DRZT-R1

Product Overview

Category

BQ28550DRZT-R1 belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for battery management in various electronic devices.

Characteristics

• Integrated circuit designed for battery management
• Provides accurate monitoring and protection features
• Enables efficient charging and discharging of batteries
• Supports communication protocols for data exchange
• Compact size and low power consumption

Package

BQ28550DRZT-R1 is available in a small form factor package, suitable for surface mount applications.

Essence

The essence of this product lies in its ability to ensure safe and efficient operation of batteries in electronic devices.

Packaging/Quantity

The product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Communication Interface: I2C
• Battery Cell Voltage Measurement Accuracy: ±10mV
• Overvoltage Protection Threshold: Configurable
• Undervoltage Protection Threshold: Configurable
• Overcurrent Protection Threshold: Configurable
• Short Circuit Detection Time: <1ms

Detailed Pin Configuration

The BQ28550DRZT-R1 IC has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: Serial Data Line for I2C communication
4. SCL: Serial Clock Line for I2C communication
5. ALERT: Interrupt output indicating fault conditions
6. BAT: Battery voltage sense input
7. TS: Thermistor input for temperature monitoring
8. PACK+: Positive terminal of battery pack
9. PACK-: Negative terminal of battery pack

Functional Features

• Accurate monitoring of battery voltage and temperature
• Overvoltage and undervoltage protection
• Overcurrent and short circuit detection
• Communication interface for data exchange with host system
• Configurable protection thresholds for customization
• Fault detection and reporting through the ALERT pin

Advantages and Disadvantages

Advantages

• Ensures safe operation of batteries in electronic devices
• Provides accurate monitoring and protection features
• Supports communication protocols for data exchange
• Compact size allows for easy integration into various applications
• Low power consumption helps optimize battery life

Disadvantages

• Requires additional components for complete battery management system implementation
• Limited to I2C communication interface

Working Principles

The BQ28550DRZT-R1 operates by continuously monitoring the battery voltage and temperature. It compares these values against user-configured thresholds to detect fault conditions such as overvoltage, undervoltage, overcurrent, and short circuits. When a fault is detected, the IC triggers the ALERT pin to notify the host system. Additionally, the BQ28550DRZT-R1 supports I2C communication, allowing the host system to retrieve battery information and configure protection thresholds.

Detailed Application Field Plans

The BQ28550DRZT-R1 is widely used in various applications that require battery management, including:

1. Portable electronic devices (e.g., smartphones, tablets)
2. Wearable devices (e.g., smartwatches, fitness trackers)
3. Medical devices (e.g., portable monitors, insulin pumps)
4. Industrial equipment (e.g., handheld tools, wireless sensors)
5. Automotive systems (e.g., electric vehicles, hybrid vehicles)

Detailed and Complete Alternative Models

1. BQ76930: Battery management IC with enhanced protection features and higher cell count support.
2. LTC6804: Multicell battery monitoring IC with high accuracy and robust communication interface.
3. MAX14920: Integrated battery management IC with advanced diagnostics and fault detection capabilities.

These alternative models offer similar functionality to the BQ28550DRZT-R1 and can be considered based on specific application requirements.

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