BQ294706DSGT

Product Overview

Category

BQ294706DSGT belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• The BQ294706DSGT is a high-accuracy voltage protection and monitoring IC.
• It provides overvoltage, undervoltage, and overcurrent protection for batteries.
• The IC offers precise voltage monitoring with low power consumption.
• It is designed to ensure the safety and longevity of batteries in electronic devices.

Package

The BQ294706DSGT comes in a small outline package (SOT) with 8 pins.

Essence

The essence of this IC lies in its ability to protect batteries from potential damage caused by overvoltage, undervoltage, and overcurrent conditions.

Packaging/Quantity

The BQ294706DSGT is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 18V
• Overvoltage Threshold: Programmable from 2.5V to 6.5V
• Undervoltage Threshold: Programmable from 1.5V to 5.5V
• Overcurrent Threshold: Programmable from 10mA to 1000mA
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 20µA (typical)

Detailed Pin Configuration

The BQ294706DSGT has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. VSS: Negative terminal of the battery
4. VOUT: Output voltage
5. OV: Overvoltage threshold programming pin
6. UV: Undervoltage threshold programming pin
7. OC: Overcurrent threshold programming pin
8. FLT: Fault output

Functional Features

• Overvoltage Protection: The IC monitors the battery voltage and triggers a protection mechanism if it exceeds the programmed threshold.
• Undervoltage Protection: It ensures that the battery voltage does not drop below the specified threshold, preventing damage to the battery.
• Overcurrent Protection: The IC detects excessive current flow and activates protection measures to safeguard the battery.
• Fault Output: The FLT pin provides a signal indicating the occurrence of a fault condition.

Advantages and Disadvantages

Advantages

• High accuracy in voltage monitoring and protection.
• Programmable thresholds for customization.
• Low power consumption.
• Compact package size.
• Suitable for a wide range of battery-powered devices.

Disadvantages

• Limited to voltage and current-based protection only.
• Requires external components for complete battery management.

Working Principles

The BQ294706DSGT operates by continuously monitoring the battery voltage and comparing it with the programmed thresholds. If the voltage exceeds the overvoltage threshold or drops below the undervoltage threshold, the IC triggers the appropriate protection mechanism. In case of an overcurrent condition, the IC limits the current flow to protect the battery. The FLT pin provides a fault signal to alert the system about the occurrence of a fault condition.

Detailed Application Field Plans

The BQ294706DSGT is widely used in various battery-powered applications, including:

1. Portable electronic devices such as smartphones, tablets, and laptops.
2. Power tools and cordless equipment.
3. Electric vehicles and hybrid cars.
4. Renewable energy systems.
5. Medical devices and healthcare equipment.
6. Industrial control systems.

Detailed and Complete Alternative Models

1. BQ294707DSGT: Similar to BQ294706DSGT but with additional features for enhanced battery protection.
2. BQ294708DSGT: A higher voltage variant suitable for applications with higher power requirements.
3. BQ294709DSGT: Offers extended temperature range for extreme environmental conditions.

These alternative models provide similar functionality and can be considered based on specific application requirements.

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