BQ294711DSGR

Product Overview

Category

BQ294711DSGR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for battery protection in various electronic devices.

Characteristics

• Provides overvoltage, undervoltage, and overcurrent protection for batteries.
• Offers accurate voltage and current monitoring.
• Supports high-speed communication interfaces.
• Features low power consumption.

Package

BQ294711DSGR is available in a small outline package (SOP) with a specific pin configuration.

Essence

The essence of this product lies in its ability to safeguard batteries from potential damage caused by voltage fluctuations and excessive currents.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with each reel/tube containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 2.5V to 28V
• Operating Temperature Range: -40°C to +85°C
• Communication Interface: I2C/SMBus
• Overvoltage Protection Threshold: Adjustable
• Undervoltage Protection Threshold: Adjustable
• Overcurrent Protection Threshold: Adjustable
• Quiescent Current: <1µA

Detailed Pin Configuration

The BQ294711DSGR IC has a total of 8 pins, each serving a specific function:

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: Serial data input/output for I2C/SMBus communication
4. SCL: Serial clock input for I2C/SMBus communication
5. ALERT: Open-drain output indicating fault conditions
6. VSS: Negative terminal of the battery
7. VBAT: Positive terminal of the battery
8. NTC: Negative temperature coefficient input for thermal monitoring

Functional Features

1. Overvoltage Protection: Monitors the battery voltage and triggers protection mechanisms if it exceeds the set threshold.
2. Undervoltage Protection: Ensures the battery voltage does not drop below the specified threshold to prevent damage.
3. Overcurrent Protection: Detects excessive current flow and activates protective measures to safeguard the battery.
4. Communication Interface: Supports I2C/SMBus communication for easy integration with microcontrollers or other devices.
5. Low Power Consumption: The IC operates with minimal power consumption, extending battery life.

Advantages and Disadvantages

Advantages

• Provides comprehensive battery protection against voltage fluctuations and overcurrent situations.
• Accurate monitoring of voltage and current levels.
• Flexible communication interface for seamless integration.
• Low power consumption ensures efficient battery usage.

Disadvantages

• Requires additional components for complete battery protection system implementation.
• Limited to specific battery voltage ranges.

Working Principles

The BQ294711DSGR IC works by continuously monitoring the battery voltage and current. It compares these values with the predefined thresholds for overvoltage, undervoltage, and overcurrent protection. If any of these thresholds are exceeded, the IC triggers appropriate actions to protect the battery from potential damage. The communication interface allows external devices to monitor and control the IC's functionality.

Detailed Application Field Plans

The BQ294711DSGR IC finds applications in various fields, including: - Portable electronic devices (e.g., smartphones, tablets) - Electric vehicles - Power banks - Uninterruptible power supplies (UPS) - Solar energy systems

In these applications, the IC ensures the safe operation of batteries by preventing voltage spikes, undervoltage conditions, and excessive currents.

Detailed and Complete Alternative Models

1. BQ297311DSGR
2. BQ292711DSGR
3. BQ294712DSGR
4. BQ294710DSGR
5. BQ295411DSGR

These alternative models offer similar battery protection features and can be considered as alternatives to the BQ294711DSGR IC.

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