BQ24093DGQR

Product Overview

Category

BQ24093DGQR belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging single-cell lithium-ion or lithium-polymer batteries in portable electronic devices such as smartphones, tablets, and wearable devices.

Characteristics

• Input voltage range: 4.35V to 6.45V
• Output voltage range: 3.5V to 4.44V
• Charging current up to 1.5A
• Integrated power FET
• Thermal regulation and protection
• Programmable charge termination
• Status indication

Package

BQ24093DGQR is available in a small 10-pin VSSOP package, which ensures space-saving integration into compact electronic devices.

Essence

The essence of BQ24093DGQR lies in its ability to efficiently and safely charge lithium-ion or lithium-polymer batteries, providing a reliable power source for portable electronic devices.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.35V to 6.45V
• Output Voltage Range: 3.5V to 4.44V
• Charging Current: Up to 1.5A
• Operating Temperature Range: -40°C to +85°C
• Battery Regulation Accuracy: ±0.5%
• Charge Termination Accuracy: ±5%

Detailed Pin Configuration

1. EN (Enable): Controls the enable/disable state of the charger.
2. STAT (Status): Provides charging status information.
3. PG (Power Good): Indicates the presence of input power.
4. TS (Thermal Sense): Connects to an external thermistor for thermal regulation.
5. VSS (Ground): Ground reference for the IC.
6. VBAT (Battery Voltage): Connects to the positive terminal of the battery.
7. VBUS (Input Voltage): Connects to the power source.
8. ISET (Current Set): Sets the charging current limit.
9. SRN (Sense Resistor Negative): Connects to the negative terminal of the sense resistor.
10. SRP (Sense Resistor Positive): Connects to the positive terminal of the sense resistor.

Functional Features

• Integrated power FET for efficient charging.
• Programmable charge termination based on battery voltage or current.
• Thermal regulation and protection to prevent overheating.
• Status indication through the STAT pin.
• Enable/disable control for flexible operation.

Advantages and Disadvantages

Advantages

• High charging current capability enables faster charging times.
• Compact package size allows for space-saving integration.
• Programmable charge termination enhances battery safety and longevity.
• Thermal regulation protects the device from overheating.

Disadvantages

• Limited input voltage range may not be suitable for all applications.
• Lack of built-in communication protocols limits compatibility with certain devices.

Working Principles

BQ24093DGQR operates by regulating the charging current and voltage to ensure safe and efficient charging of lithium-ion or lithium-polymer batteries. It incorporates an integrated power FET that controls the charging process. The charge termination can be programmed based on either battery voltage or current, providing flexibility in charging profiles. Thermal regulation prevents excessive heat buildup during charging, protecting both the battery and the charger.

Detailed Application Field Plans

BQ24093DGQR finds extensive application in various portable electronic devices, including: - Smartphones - Tablets - Wearable devices - Portable media players - Bluetooth headsets

Detailed and Complete Alternative Models

1. BQ24092DGQR: Similar to BQ24093DGQR, but with a lower charging current capability of up to 1A.
2. BQ24094DGQR: Similar to BQ24093DGQR, but with an extended input voltage range of 4.35V to 7V.

These alternative models provide options for different charging requirements and system designs.

In conclusion, BQ24093DGQR is a highly capable integrated circuit designed for efficient and safe charging of lithium-ion or lithium-polymer batteries in portable electronic devices. Its compact size, programmable charge termination, and thermal regulation features make it an ideal choice for various applications.