BQ28550DRZR-R1

Product Overview

Category

BQ28550DRZR-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

Package

BQ28550DRZR-R1 comes in a small form factor package, suitable for surface mount technology (SMT) assembly.

Essence

The essence of BQ28550DRZR-R1 lies in its ability to ensure safe and reliable operation of batteries by providing comprehensive management functions.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a standard 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: Yes
• Sleep Mode Current Consumption: <1µA

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: I2C data line
4. SCL: I2C clock line
5. ALERT: Interrupt output
6. BAT: Battery voltage sense input
7. TS: Thermistor input for temperature monitoring
8. STAT: Status output
9. PACK+: Positive terminal of battery pack
10. PACK-: Negative terminal of battery pack

Functional Features

• Accurate battery voltage measurement
• Overvoltage and undervoltage protection
• Overcurrent and short circuit detection
• Temperature monitoring for thermal management
• Communication interface for data exchange
• Status output for system integration

Advantages and Disadvantages

Advantages

• Provides comprehensive battery management functions
• High accuracy in voltage measurement
• Configurable protection thresholds
• Efficient power consumption in sleep mode
• Compact package suitable for SMT assembly

Disadvantages

• Limited to I2C communication interface
• Requires external thermistor for temperature monitoring

Working Principles

BQ28550DRZR-R1 operates by continuously monitoring the battery voltage, current, and temperature. It compares these values with configurable thresholds to detect abnormal conditions such as overvoltage, undervoltage, overcurrent, and short circuits. The IC communicates with the host system through the I2C interface, providing real-time status information and enabling control of charging and discharging processes.

Detailed Application Field Plans

BQ28550DRZR-R1 finds applications in a wide range of electronic devices that utilize rechargeable batteries. Some common application fields include: - Portable consumer electronics (e.g., smartphones, tablets) - Wearable devices (e.g., smartwatches, fitness trackers) - Medical devices (e.g., portable monitors, insulin pumps) - Industrial equipment (e.g., handheld tools, measuring instruments) - Automotive systems (e.g., electric vehicles, hybrid vehicles)

Detailed and Complete Alternative Models

• BQ76930DRVR: Battery management IC with similar features but different pin configuration
• LTC6804-2: Multicell battery monitor with extended functionality
• MAX14920: Integrated battery management and protection solution
• ISL94203: Highly integrated battery pack monitor and protector

Please note that the above list is not exhaustive, and there are several other alternative models available in the market.

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