BQ24195RGER

Product Overview

Category

BQ24195RGER 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 charging efficiency
• Fast charging capability
• Multiple protection features
• Compact package size
• Low power consumption

Package

BQ24195RGER is available in a small 24-pin VQFN (Very Thin Quad Flat No-Lead) package. This package offers excellent thermal performance and compactness, making it suitable for space-constrained applications.

Essence

The essence of BQ24195RGER lies in its ability to provide efficient and reliable charging solutions for lithium-ion batteries, ensuring optimal performance and safety.

Packaging/Quantity

BQ24195RGER is typically sold in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input voltage range: 4.35V to 6.45V
• Charging current range: Up to 3A
• Programmable charge termination current
• Programmable battery regulation voltage
• Integrated thermal regulation and protection
• USB On-The-Go (OTG) support
• I2C interface for advanced control and monitoring

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. TS: Thermal sense input pin
4. STAT: Status output pin
5. PG: Power good output pin
6. SDA: I2C data pin
7. SCL: I2C clock pin
8. INT: Interrupt output pin
9. ILIM: Charge current limit programming pin
10. BAT: Battery voltage sense input pin
11. TS/NTC: Thermistor input pin
12. VBUS: USB input voltage sense input pin
13. D+/D-: USB data pins
14. ISET: Charge current programming pin
15. VOUT: Output voltage pin
16. EN2: Enable 2 pin
17. EN1: Enable 1 pin
18. PGND: Power ground pin
19. SYS: System voltage output pin
20. VREF: Reference voltage output pin
21. SRN/SRP: Resistor divider pins for battery regulation voltage
22. TS/NTC: Thermistor input pin
23. TS/NTC: Thermistor input pin
24. VIN: Input voltage pin

Functional Features

• Constant current (CC) and constant voltage (CV) charging modes
• Automatic power path management
• Thermal regulation and protection
• Battery temperature monitoring
• Charging status indication
• Fault detection and reporting
• Programmable charging parameters
• USB OTG support for device-to-device charging

Advantages and Disadvantages

Advantages

• High charging efficiency leads to faster charging times.
• Multiple protection features ensure safe charging and prevent damage to the battery or device.
• Compact package size allows for easy integration into small electronic devices.
• Low power consumption minimizes energy wastage during charging.

Disadvantages

• Limited compatibility with certain battery chemistries other than lithium-ion.
• Requires additional external components for full functionality, increasing overall system complexity.

Working Principles

BQ24195RGER operates by regulating the charging current and voltage supplied to the connected lithium-ion battery. It employs a CC-CV charging algorithm, where it initially provides a constant current until the battery voltage reaches a predetermined threshold. Then, it switches to a constant voltage mode to maintain the battery voltage at a safe level. The IC continuously monitors the battery temperature and adjusts the charging parameters accordingly to prevent overheating or overcharging.

Detailed Application Field Plans

BQ24195RGER finds extensive application in various portable electronic devices, including: - Smartphones - Tablets - Wearable devices (smartwatches, fitness trackers) - Portable gaming consoles - Bluetooth headphones/speakers - Digital cameras

Detailed and Complete Alternative Models

1. BQ24192RGER
2. BQ24193RGER
3. BQ24194RGER
4. BQ24196RGER
5. BQ24197RGER

These alternative models offer similar functionality and characteristics to BQ24195RGER, providing flexibility for different design requirements and specifications.

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