BQ29415DCTR

Product Overview

Category

BQ29415DCTR belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• Voltage range: 2.5V to 28V
• Low quiescent current: 8µA (typical)
• Overvoltage protection
• Undervoltage lockout
• Short-circuit protection
• Thermal shutdown protection

Package

BQ29415DCTR is available in a small SOT-23 package, which is widely used for surface mount applications.

Essence

The essence of BQ29415DCTR lies in its ability to protect batteries from overvoltage, undervoltage, short-circuits, and thermal damage.

Packaging/Quantity

This IC is typically packaged in reels, with each reel containing 3000 units.

Specifications

• Operating voltage range: 2.5V to 28V
• Quiescent current: 8µA (typical)
• Overvoltage threshold: 4.3V to 4.6V
• Undervoltage threshold: 2.4V to 2.7V
• Short-circuit current limit: 10A (typical)
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The BQ29415DCTR IC has the following pin configuration:

1. GND (Ground)
2. VDD (Power supply)
3. VSS (Negative terminal of the battery)
4. VOUT (Output voltage)
5. EN (Enable pin)
6. STAT (Status output)

Functional Features

1. Overvoltage Protection: Monitors the battery voltage and disconnects it from the load when it exceeds the preset threshold.
2. Undervoltage Lockout: Prevents the battery from discharging below a certain voltage, ensuring its longevity.
3. Short-Circuit Protection: Detects excessive current flow and shuts down the circuit to prevent damage.
4. Thermal Shutdown Protection: Safeguards the IC by shutting it down when the temperature exceeds a safe limit.

Advantages and Disadvantages

Advantages

• Provides comprehensive battery protection in a compact package.
• Low quiescent current ensures minimal power consumption.
• Wide operating voltage range allows for versatile applications.
• Offers multiple protection features for enhanced safety.

Disadvantages

• Limited short-circuit current limit compared to some alternative models.
• May require additional external components for specific applications.

Working Principles

BQ29415DCTR operates by continuously monitoring the battery voltage and comparing it with preset thresholds. When an abnormal condition is detected (such as overvoltage or undervoltage), the IC takes appropriate action to protect the battery and the connected circuitry. It achieves this through internal control logic and switches that disconnect the battery from the load or limit the current flow.

Detailed Application Field Plans

BQ29415DCTR finds applications in various electronic devices that rely on batteries, including: - Portable consumer electronics (e.g., smartphones, tablets) - Medical devices - Industrial equipment - Automotive systems

Detailed and Complete Alternative Models

1. BQ29414DCTR: Similar to BQ29415DCTR but with a lower short-circuit current limit of 5A.
2. BQ29416DCTR: Similar to BQ29415DCTR but with a higher short-circuit current limit of 15A.
3. BQ29417DCTR: Similar to BQ29415DCTR but with extended operating temperature range (-40°C to +125°C).

These alternative models offer similar functionality with slight variations in specifications to cater to different application requirements.

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