BQ294700DSGR - English Editing Encyclopedia Entry

Product Overview

Category

BQ294700DSGR belongs to the category of integrated circuits (ICs) specifically designed for battery protection and monitoring.

Use

This product is primarily used in battery management systems to ensure safe and efficient operation of rechargeable batteries. It provides various protection features and monitors battery parameters to prevent overcharging, over-discharging, and excessive current flow.

Characteristics

• Battery protection: Prevents overcharging, over-discharging, and excessive current flow.
• Monitoring: Monitors battery voltage, current, and temperature.
• Integrated design: Combines multiple functions into a single chip for compact and efficient battery management.
• Low power consumption: Optimized circuitry minimizes energy consumption during operation.

Package

BQ294700DSGR is available in a small outline package (SOP) with a specific pin configuration for easy integration onto printed circuit boards (PCBs).

Essence

The essence of BQ294700DSGR lies in its ability to protect and monitor batteries, ensuring their safe and reliable performance.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specified quantity of ICs per package. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 2.5V to 16V
• Operating Temperature Range: -40°C to +85°C
• Overvoltage Protection Threshold: Adjustable within the input voltage range
• Undervoltage Protection Threshold: Adjustable within the input voltage range
• Overcurrent Protection Threshold: Adjustable within the specified range
• Current Consumption: Low standby current, typically less than 10µA

Detailed Pin Configuration

1. VDD: 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 for alert indication
6. BAT: Battery voltage sense input
7. TS: Temperature sense input
8. VSS: Negative terminal of the battery

Functional Features

• Overvoltage protection: Automatically disconnects the battery from the load when the voltage exceeds the set threshold.
• Undervoltage protection: Cuts off the load when the battery voltage drops below the specified threshold.
• Overcurrent protection: Limits the current flow to prevent damage to the battery and connected devices.
• Temperature monitoring: Monitors the battery temperature to prevent overheating.
• Communication interface: Allows external devices to communicate with the IC for configuration and status monitoring.

Advantages and Disadvantages

Advantages

• Comprehensive battery protection and monitoring in a single chip.
• Adjustable protection thresholds for customization.
• Low power consumption for energy efficiency.
• Compact size for easy integration into battery management systems.

Disadvantages

• Limited compatibility with specific battery chemistries or voltage ranges.
• Requires additional external components for complete battery management system implementation.

Working Principles

BQ294700DSGR operates based on a combination of voltage and current sensing, temperature monitoring, and control logic. It continuously measures the battery parameters and compares them against the pre-set thresholds. When any parameter exceeds the defined limits, the IC takes appropriate actions to protect the battery and connected devices.

Detailed Application Field Plans

BQ294700DSGR finds applications in various fields where rechargeable batteries are used, including: 1. Electric vehicles (EVs) and hybrid electric vehicles (HEVs) 2. Portable electronic devices (e.g., smartphones, tablets, laptops) 3. Power tools and cordless equipment 4. Renewable energy systems (e.g., solar power storage) 5. Uninterruptible power supplies (UPS)

Detailed and Complete Alternative Models

1. BQ294700DSGT: Similar to BQ294700DSGR, but available in a different package.
2. BQ294700DSGN: Another variant with additional features for enhanced battery protection.
3. BQ294700DSGS: A lower-cost alternative with basic battery protection capabilities.

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

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