BQ29717DSET

Product Overview

Category

BQ29717DSET 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 voltage and current monitoring
• Low power consumption
• Compact size for easy integration into various applications

Package

BQ29717DSET is available in a small outline package (SOT) with 8 pins. The package provides excellent thermal performance and mechanical stability.

Essence

The essence of BQ29717DSET lies in its ability to safeguard lithium-ion batteries by continuously monitoring their voltage and current levels. It prevents potential hazards and extends the lifespan of the batteries.

Packaging/Quantity

This product is typically sold in reels containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Operating Voltage Range: 2.5V to 6V
• Overvoltage Protection Threshold: Adjustable from 3.0V to 4.5V
• Undervoltage Protection Threshold: Adjustable from 1.8V to 3.5V
• Overcurrent Detection Threshold: Adjustable from 10mV to 100mV
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. BAT: Battery connection
4. PROTECT: Output signal indicating battery protection status
5. SDA: Serial data input/output for communication
6. SCL: Serial clock input for communication
7. TS: Temperature sense input
8. NTC: Negative temperature coefficient thermistor input

Functional Features

• Overvoltage protection: Automatically disconnects the battery from the load when the voltage exceeds the set threshold.
• Undervoltage protection: Cuts off the battery supply when the voltage drops below the specified threshold.
• Overcurrent detection: Monitors the current flow and triggers protection measures if it exceeds the defined limit.
• Temperature sensing: Allows monitoring of battery temperature for enhanced safety.

Advantages and Disadvantages

Advantages

• High accuracy in voltage and current monitoring ensures precise protection.
• Low power consumption minimizes energy wastage.
• Compact size enables easy integration into various devices.
• Adjustable thresholds provide flexibility for different battery types and 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

BQ29717DSET operates by continuously monitoring the battery voltage, current, and temperature. It compares these values with the user-defined thresholds to determine if any protection action is required. When a fault condition is detected, such as overvoltage or overcurrent, the IC triggers the appropriate protection mechanism to safeguard the battery and connected devices.

Detailed Application Field Plans

BQ29717DSET finds extensive application in various battery-powered devices, including: 1. Portable electronic devices (e.g., smartphones, tablets) 2. Electric vehicles and hybrid electric vehicles 3. Power tools and cordless appliances 4. Energy storage systems 5. Medical devices 6. Uninterruptible power supplies (UPS)

Detailed and Complete Alternative Models

1. BQ29718DSET: Similar to BQ29717DSET but with additional features for enhanced battery protection.
2. BQ29719DSET: Advanced version with extended operating temperature range and improved performance characteristics.
3. BQ29720DSET: Suitable for battery packs with higher voltage requirements and increased current handling capabilities.

These alternative models offer similar functionality to BQ29717DSET but may have additional features or specifications tailored to specific application requirements.

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