BQ24313DSGT - English Editing Encyclopedia Entry

Product Overview

Category

BQ24313DSGT belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used for battery charging and system power path management in portable electronic devices such as smartphones, tablets, and wearable devices.

Characteristics

• Efficient power management: The BQ24313DSGT offers high-efficiency charging and power path management, ensuring optimal utilization of available power.
• Compact package: It comes in a small form factor package, making it suitable for space-constrained designs.
• Enhanced safety features: The IC incorporates various protection mechanisms, including overvoltage, overcurrent, and thermal protection, ensuring safe operation of the device.
• Low power consumption: The BQ24313DSGT minimizes power losses during charging and power path management, resulting in improved overall energy efficiency.

Package and Quantity

The BQ24313DSGT is available in a compact 10-pin VSON package. It is typically sold in reels containing 2500 units per reel.

Specifications

• Input voltage range: 3.5V to 6.45V
• Charging current range: 100mA to 2A
• Operating temperature range: -40°C to +85°C
• Standby current: <1µA
• Output voltage range: 3.5V to 4.5V

Pin Configuration

The BQ24313DSGT features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. PG: Power good indicator output pin
4. STAT: Status output pin
5. TS: Thermal shutdown input pin
6. BAT: Battery voltage sense input pin
7. SYS: System voltage sense input pin
8. ILIM: Current limit programming input pin
9. EN: Enable control input pin
10. VBUS: USB voltage sense input pin

Functional Features

1. Power Path Management: The BQ24313DSGT enables simultaneous charging of the battery and powering the system, allowing uninterrupted device operation even during charging.
2. Dynamic Power Management: It dynamically adjusts the power path to optimize charging efficiency based on the available input power and system load conditions.
3. Battery Protection: The IC incorporates various protection features such as overvoltage, overcurrent, and short-circuit protection to safeguard the battery from potential damage.
4. Thermal Management: It includes a thermal shutdown feature that prevents overheating by disabling the charging circuitry when the temperature exceeds a specified threshold.

Advantages and Disadvantages

Advantages

• High charging efficiency
• Compact form factor
• Enhanced safety features
• Low power consumption
• Simultaneous charging and system operation

Disadvantages

• Limited input voltage range (3.5V to 6.45V)
• Relatively low charging current range (100mA to 2A)

Working Principles

The BQ24313DSGT operates by intelligently managing the power flow between the input source (VBUS) and the battery/system (VIN/SYS). It utilizes a combination of power switches, charge controllers, and protection circuits to ensure efficient charging and power path management. The IC continuously monitors the input voltage, battery voltage, and system load to dynamically adjust the power path and charging current, optimizing energy transfer and minimizing power losses.

Detailed Application Field Plans

The BQ24313DSGT is widely used in various portable electronic devices, including: - Smartphones - Tablets - Wearable devices (smartwatches, fitness trackers) - Portable gaming consoles - Bluetooth headphones/speakers

Alternative Models

For those seeking alternative options, the following models offer similar functionality to the BQ24313DSGT: - BQ24075RGTR - LTC4054LES8-4.2 - MCP73831T-2ATI/OT

These alternatives provide comparable power management features and can be considered based on specific design requirements.

In conclusion, the BQ24313DSGT is a highly efficient integrated circuit designed for battery charging and power path management in portable electronic devices. Its compact size, safety features, and low power consumption make it an ideal choice for various applications.