BQ29410PW

Overview

Product Category

The BQ29410PW belongs to the category of integrated circuits (ICs) used in electronic devices.

Use

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

Characteristics

• Battery protection against overcharging, over-discharging, and short-circuiting.
• Accurate voltage and current monitoring.
• Low power consumption.
• Wide operating temperature range.
• Compact package size.

Package

The BQ29410PW is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of the BQ29410PW lies in its ability to safeguard batteries from potential damage by controlling charging and discharging processes.

Packaging/Quantity

The BQ29410PW is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 2.5V to 16V
• Operating Temperature Range: -40°C to +85°C
• Overcharge Detection Voltage: 4.2V to 4.4V
• Overdischarge Detection Voltage: 2.0V to 3.0V
• Short-Circuit Detection Delay: 5μs to 20μs
• Quiescent Current: 8μA (typical)

Detailed Pin Configuration

The BQ29410PW features a 16-pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: Serial data input/output
4. SCL: Serial clock input
5. ALERT: Output indicating fault conditions
6. BAT: Battery connection
7. VSS: Negative terminal of the battery
8. VCC: Positive terminal of the battery
9. TS: Thermistor input for temperature monitoring
10. SRP: Sense resistor positive terminal
11. SRN: Sense resistor negative terminal
12. VREF: Reference voltage output
13. VDDP: Power supply input for internal circuitry
14. NC: Not connected
15. NC: Not connected
16. NC: Not connected

Functional Features

1. Overcharge Protection: Monitors battery voltage to prevent overcharging.
2. Overdischarge Protection: Prevents excessive discharge, prolonging battery life.
3. Short-Circuit Protection: Detects and responds to short-circuit conditions.
4. Temperature Monitoring: Allows temperature-based protection mechanisms.
5. Fault Indication: Provides an alert signal in case of abnormal battery conditions.

Advantages and Disadvantages

Advantages

• Effective battery protection against common risks.
• Accurate monitoring ensures optimal battery performance.
• Low power consumption minimizes energy wastage.
• Wide operating temperature range enables versatile applications.
• Compact package size facilitates integration into various devices.

Disadvantages

• Limited compatibility with certain battery chemistries or configurations.
• Relatively higher cost compared to basic battery protection solutions.
• Complex pin configuration may require careful design considerations.

Working Principles

The BQ29410PW operates by continuously monitoring the battery voltage, current, and temperature. It compares these values against predefined thresholds to detect potential risks such as overcharging, over-discharging, and short-circuiting. Upon detecting a fault condition, it triggers appropriate actions to protect the battery and connected circuitry.

Detailed Application Field Plans

The BQ29410PW finds application in various fields, including: - Portable electronic devices (e.g., smartphones, tablets) - Electric vehicles and hybrid electric vehicles - Power tools and cordless appliances - Renewable energy systems (e.g., solar power storage) - Medical devices and equipment

Detailed and Complete Alternative Models

1. BQ29412PW: Similar functionality with additional features.
2. BQ29414PW: Enhanced protection capabilities for high-power applications.
3. BQ29416PW: Extended operating temperature range for extreme environments.
4. BQ29418PW: Advanced communication interface for system integration.

These alternative models offer similar battery protection and monitoring functionalities, catering to specific requirements in different applications.

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