BQ24311DSGR

Product Overview

Category

BQ24311DSGR belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in battery charging and protection systems, providing efficient and reliable power management solutions.

Characteristics

• High efficiency charging and discharging capabilities
• Overvoltage and overcurrent protection
• Reverse polarity protection
• Temperature monitoring and protection
• Compact and space-saving design

Package

BQ24311DSGR is available in a small form factor package, making it suitable for various electronic devices with limited space.

Essence

The essence of BQ24311DSGR lies in its ability to efficiently manage power flow, ensuring safe and optimized charging and discharging of batteries.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with each reel/tube containing a specific quantity of BQ24311DSGR ICs. The exact quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 3.5V - 26V
• Output Voltage Range: 3.5V - 26V
• Charging Current Range: 100mA - 2A
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 8
• Pin Pitch: 0.65mm

Detailed Pin Configuration

1. VBUS: Input voltage pin for the power source.
2. GND: Ground reference pin.
3. TS: Temperature sense pin for thermal monitoring.
4. BAT: Battery connection pin.
5. STAT: Status output pin indicating charging/discharging status.
6. PG: Power good output pin indicating successful charging.
7. EN: Enable pin to control the IC's operation.
8. ILIM: Current limit setting pin.

Functional Features

• Overvoltage Protection: Safeguards the battery from excessive voltage levels.
• Overcurrent Protection: Prevents damage to the battery by limiting the current flow.
• Reverse Polarity Protection: Protects the IC and battery from reverse connection.
• Temperature Monitoring: Monitors the temperature to prevent overheating.
• Charging Status Indication: Provides status output to indicate charging or discharging.
• Power Good Output: Signals successful charging completion.
• Enable Control: Allows the user to enable or disable the IC's operation.
• Current Limit Setting: Enables customization of the maximum charging current.

Advantages and Disadvantages

Advantages

• Efficient power management for battery charging and protection.
• Compact design suitable for space-constrained applications.
• Comprehensive protection features ensure battery safety.
• Flexible current limit setting for customization.
• Reliable performance in a wide range of operating conditions.

Disadvantages

• Limited charging current range compared to some alternative models.
• May require additional external components for certain applications.

Working Principles

BQ24311DSGR operates based on a combination of integrated circuitry and control algorithms. It regulates the charging and discharging process by monitoring various parameters such as voltage, current, and temperature. The IC ensures that the battery receives optimal power while protecting it from potential hazards like overvoltage, overcurrent, and reverse polarity.

Detailed Application Field Plans

BQ24311DSGR finds applications in various fields where efficient battery charging and protection are essential. Some common application areas include: - Portable electronic devices (e.g., smartphones, tablets) - Wearable devices (e.g., smartwatches, fitness trackers) - IoT devices - Automotive electronics - Industrial equipment

Detailed and Complete Alternative Models

1. BQ24075RGTR: Similar functionality with a wider charging current range.
2. LTC4054LES5-4.2: Offers additional features like battery temperature monitoring.
3. MCP73871-2CCI/MLI: Provides higher charging current capability.

These alternative models offer similar functionalities to BQ24311DSGR and can be considered based on specific application requirements.

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