BQ29701DSET

Product Overview

Category

BQ29701DSET belongs to the category of integrated circuits (ICs) specifically designed for battery protection.

Use

This product is primarily used for protecting lithium-ion batteries from overcharging, over-discharging, and short-circuiting. It ensures the safe and efficient operation of battery-powered devices.

Characteristics

• Battery protection IC with advanced features
• High accuracy in voltage and current monitoring
• Low power consumption
• Compact size for easy integration into various applications

Package

BQ29701DSET is available in a small surface-mount package, allowing for easy installation on circuit boards.

Essence

The essence of BQ29701DSET lies in its ability to safeguard lithium-ion batteries by accurately monitoring their voltage and current levels, preventing potential hazards and extending battery life.

Packaging/Quantity

This product is typically sold in reels or tubes containing a specific quantity of ICs, depending on the manufacturer's packaging specifications.

Specifications

• Input Voltage Range: 2.5V to 4.8V
• Overvoltage Protection Threshold: 4.35V ± 25mV
• Undervoltage Protection Threshold: 2.5V ± 50mV
• Overcurrent Detection Threshold: Configurable
• Operating Temperature Range: -40°C to +85°C
• Package Type: 6-pin WSON

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: Serial data input/output
4. SCL: Serial clock input
5. ALERT: Open-drain output for fault indication
6. BAT: Battery connection

Functional Features

• Overvoltage protection: Automatically disconnects the battery from the load when the voltage exceeds the specified threshold.
• Undervoltage protection: Cuts off the battery supply when the voltage drops below the specified threshold.
• Overcurrent detection: Monitors the current flow and triggers a fault condition if it exceeds the configured threshold.
• Fault indication: Provides an alert signal to indicate any detected faults or abnormal conditions.

Advantages and Disadvantages

Advantages

• High accuracy in voltage and current monitoring ensures reliable battery protection.
• Low power consumption minimizes energy wastage.
• Compact size allows for easy integration into space-constrained applications.

Disadvantages

• Limited to lithium-ion battery protection, not suitable for other battery chemistries.
• Requires additional external components for complete battery protection system implementation.

Working Principles

BQ29701DSET operates by continuously monitoring the battery voltage and current. It compares these values with the predefined thresholds and takes appropriate actions to protect the battery from overcharging, over-discharging, and excessive current flow. The IC communicates with the host system through the serial data interface, providing real-time information about the battery status.

Detailed Application Field Plans

BQ29701DSET finds extensive application in various battery-powered devices, including but not limited to: - Smartphones and tablets - Portable medical devices - Electric vehicles - Power tools - Energy storage systems

Detailed and Complete Alternative Models

1. BQ29702DSET: Similar to BQ29701DSET but with additional features such as temperature monitoring and balancing control.
2. BQ29703DSET: Offers enhanced overvoltage and undervoltage protection capabilities compared to BQ29701DSET.
3. BQ29704DSET: Designed specifically for multi-cell battery packs, providing comprehensive protection for each cell.

These alternative models offer different functionalities and cater to specific requirements, allowing users to choose the most suitable option for their applications.

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