BQ29701DSER

Product Overview

Category

BQ29701DSER belongs to the category of integrated circuits (ICs).

Use

This IC is primarily used for battery protection and monitoring in various electronic devices.

Characteristics

• Battery protection and monitoring
• Low power consumption
• High accuracy
• Wide operating voltage range
• Small package size

Package

BQ29701DSER is available in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of BQ29701DSER lies in its ability to protect and monitor batteries, ensuring their safe and efficient operation.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Operating Voltage Range: 2.5V to 18V
• Overvoltage Protection Threshold: Adjustable from 2.7V to 4.8V
• Undervoltage Protection Threshold: Adjustable from 1.8V to 3.6V
• Overcurrent Protection Threshold: Adjustable from 10mA to 1000mA
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOP-8

Detailed Pin Configuration

The BQ29701DSER IC has the following 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. VSS: Negative terminal of the battery
7. VBAT: Positive terminal of the battery
8. NTC: Negative temperature coefficient input

Functional Features

• Overvoltage protection: Monitors the battery voltage and disconnects it from the load when it exceeds the set threshold.
• Undervoltage protection: Monitors the battery voltage and disconnects it from the load when it falls below the set threshold.
• Overcurrent protection: Monitors the current flowing through the battery and disconnects it from the load when it exceeds the set threshold.
• Temperature monitoring: Monitors the battery temperature using an external negative temperature coefficient (NTC) thermistor.

Advantages and Disadvantages

Advantages

• Provides comprehensive battery protection and monitoring features
• Wide operating voltage range allows compatibility with various battery types
• High accuracy ensures precise control over protection thresholds
• Low power consumption minimizes energy wastage
• Small package size enables space-efficient integration into electronic devices

Disadvantages

• Limited to SOP-8 package, which may not be suitable for all applications
• Requires an external NTC thermistor for temperature monitoring

Working Principles

BQ29701DSER operates by continuously monitoring the battery voltage, current, and temperature. It compares these values with the user-defined protection thresholds. If any of the thresholds are exceeded, the IC disconnects the battery from the load to prevent damage or unsafe operation.

Detailed Application Field Plans

BQ29701DSER finds applications in a wide range of electronic devices that utilize rechargeable batteries. Some potential application fields include:

1. Portable consumer electronics (e.g., smartphones, tablets, laptops)
2. Electric vehicles and hybrid electric vehicles
3. Power tools and garden equipment
4. Energy storage systems
5. Medical devices
6. Industrial automation

Detailed and Complete Alternative Models

Some alternative models to BQ29701DSER that offer similar battery protection and monitoring capabilities are:

1. BQ29702DSER
2. BQ29703DSER
3. BQ29704DSER
4. BQ29705DSER

These models are part of the same IC family and provide varying features and specifications to cater to different application requirements.

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