BQ24167RGER

Product Overview

Category

BQ24167RGER belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This IC is commonly used in portable electronic devices, such as smartphones, tablets, and wearable devices, to efficiently charge lithium-ion batteries.

Characteristics

• High efficiency: BQ24167RGER incorporates advanced charging algorithms and power management techniques to maximize charging efficiency.
• Fast charging: The IC supports fast charging protocols, allowing for quicker battery recharge times.
• Compact package: It comes in a small form factor package, making it suitable for space-constrained designs.
• Integrated protection features: BQ24167RGER includes various safety mechanisms to prevent overcharging, overvoltage, and overcurrent conditions.

Package and Quantity

BQ24167RGER is available in a 24-pin VQFN (Very Thin Quad Flat No-Lead) package. It is typically sold in reels containing a specific quantity, usually around 250 or 300 units per reel.

Specifications

• Input voltage range: 4.35V to 6.45V
• Charging current range: Up to 3A
• Output voltage range: 3.5V to 4.44V
• Operating temperature range: -40°C to 85°C
• Efficiency: Up to 95%
• Standby current: Less than 100µA

Pin Configuration

The BQ24167RGER IC has a total of 24 pins, each serving a specific function. Here is a detailed pin configuration:

1. VIN: Input voltage pin
2. PGND: Power ground pin
3. STAT: Status output pin
4. TS: Thermistor input pin
5. ISET: Current limit setting pin
6. VBUS: USB input voltage pin
7. VSS: Ground pin
8. VBAT: Battery voltage pin
9. TS/NTC: Thermistor input or NTC thermistor input pin
10. ISET: Current limit setting pin
11. VBUS: USB input voltage pin
12. VSS: Ground pin
13. VBAT: Battery voltage pin
14. VSS: Ground pin
15. VSS: Ground pin
16. VSS: Ground pin
17. VSS: Ground pin
18. VSS: Ground pin
19. VSS: Ground pin
20. VSS: Ground pin
21. VSS: Ground pin
22. VSS: Ground pin
23. VSS: Ground pin
24. VSS: Ground pin

Functional Features

• Constant current and constant voltage charging modes
• Thermal regulation to prevent overheating
• Automatic battery detection and initialization
• Charge termination based on battery voltage and temperature
• Reverse boost mode for USB On-The-Go (OTG) applications
• Dynamic power management for efficient power delivery

Advantages and Disadvantages

Advantages

• High charging efficiency leads to reduced charging times
• Integrated protection features ensure safe charging
• Compact package size allows for flexible design integration
• Wide input voltage range supports various power sources

Disadvantages

• Limited output voltage range may not be suitable for all battery types
• Requires external components for complete charging circuit implementation
• Relatively high standby current compared to some alternative models

Working Principles

BQ24167RGER operates by regulating the charging current and voltage supplied to the connected lithium-ion battery. It employs a combination of constant current and constant voltage charging modes to optimize the charging process. The IC continuously monitors the battery voltage and temperature to determine the appropriate charging parameters. Once the battery reaches its desired voltage and temperature limits, the charging process is terminated to prevent overcharging.

Detailed Application Field Plans

BQ24167RGER is widely used in various portable electronic devices, including smartphones, tablets, smartwatches, and wireless earphones. Its compact size and high efficiency make it suitable for space-constrained designs where fast and reliable battery charging is essential. The IC can be integrated into power management systems of these devices to provide efficient and safe charging capabilities.

Detailed and Complete Alternative Models

1. BQ24160RGET: Similar to BQ24167RGER, but with a lower charging current capability.
2. BQ24163RGER: Similar to BQ24167RGER, but with additional features like USB OTG support.
3. BQ24168RGER: Similar to BQ24167RGER, but with a higher charging current capability.

These alternative models offer similar functionality to BQ24167RGER while catering to specific application requirements or providing enhanced performance characteristics.

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