BQ294604DRVT

Product Overview

Category

BQ294604DRVT belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• Voltage range: 2.5V to 4.8V
• Low quiescent current: 10µA (typical)
• Overvoltage protection
• Undervoltage lockout
• Short-circuit protection
• Thermal shutdown protection

Package

BQ294604DRVT is available in a small outline package (SOT-23) which ensures easy integration into circuit boards.

Essence

The essence of BQ294604DRVT lies in its ability to protect batteries from overvoltage, undervoltage, short-circuits, and thermal damage, ensuring safe and reliable operation.

Packaging/Quantity

This IC is typically packaged in reels containing 3000 units.

Specifications

• Operating voltage range: 2.5V to 4.8V
• Quiescent current: 10µA (typical)
• Overvoltage threshold: 4.35V (typical)
• Undervoltage threshold: 2.5V (typical)
• Short-circuit current limit: 1.5A (typical)
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

BQ294604DRVT features the following pin configuration:

1. GND (Ground)
2. VDD (Power supply)
3. SDA (Serial data input/output)
4. SCL (Serial clock input)
5. OUT (Output)
6. EN (Enable)

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 safe voltage level, 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 specified limit.

Advantages and Disadvantages

Advantages

• Efficient battery protection against overvoltage, undervoltage, short-circuits, and thermal damage.
• Low quiescent current ensures minimal power consumption.
• Compact package allows for easy integration into various electronic devices.

Disadvantages

• Limited operating voltage range (2.5V to 4.8V).
• May require additional external components for certain applications.

Working Principles

BQ294604DRVT operates by continuously monitoring the battery voltage using an internal comparator. When the voltage exceeds the overvoltage threshold, the IC disconnects the battery from the load. Similarly, if the voltage drops below the undervoltage threshold, the IC prevents further discharge. In case of a short-circuit or excessive temperature, the IC shuts down to protect itself and the battery.

Detailed Application Field Plans

BQ294604DRVT finds application in various electronic devices that rely on battery power, such as: 1. Smartphones and tablets 2. Portable medical devices 3. Wearable electronics 4. Power banks 5. Electric vehicles

Detailed and Complete Alternative Models

1. BQ294602DRVT: Similar to BQ294604DRVT but with a lower overvoltage threshold.
2. BQ294603DRVT: Similar to BQ294604DRVT but with a higher overvoltage threshold.
3. BQ294605DRVT: Similar to BQ294604DRVT but with a different pin configuration.

These alternative models provide flexibility in choosing the appropriate IC based on specific requirements.

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