LTC4162IUFD-FSTM#PBF

Product Overview

Category

The LTC4162IUFD-FSTM#PBF belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging and managing lithium-ion batteries in various electronic devices, such as smartphones, tablets, portable media players, and other portable electronic devices.

Characteristics

• High efficiency: The LTC4162IUFD-FSTM#PBF features a high-efficiency power conversion architecture, ensuring optimal energy transfer during the charging process.
• Fast charging capability: This IC supports fast charging protocols, allowing for quick and efficient battery charging.
• Advanced protection features: It incorporates multiple protection mechanisms, including overvoltage protection, overcurrent protection, and thermal shutdown, ensuring safe and reliable battery charging.
• Programmable charging parameters: The LTC4162IUFD-FSTM#PBF offers programmable charging current, voltage, and termination settings, providing flexibility for different battery types and charging requirements.

Package and Quantity

The LTC4162IUFD-FSTM#PBF is available in a small form factor package, known as a 38-lead QFN (Quad Flat No-leads) package. It is supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4V to 35V
• Charging Current Range: Up to 3A
• Charging Voltage Range: 2.5V to 28V
• Operating Temperature Range: -40°C to 85°C
• Control Interface: I2C (Inter-Integrated Circuit)

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. VBAT: Battery voltage pin
4. TS: Thermal shutdown pin
5. SDA: I2C data pin
6. SCL: I2C clock pin
7. STAT: Charging status pin
8. PROG: Programming pin for charging parameters
9. INTVCC: Internal voltage supply pin
10. VOUT: Output voltage pin

(Note: The above list includes only a subset of the total pins available on the LTC4162IUFD-FSTM#PBF. Please refer to the datasheet for a complete pin configuration.)

Functional Features

• Battery Charging: The LTC4162IUFD-FSTM#PBF provides a comprehensive charging solution, including constant current (CC) and constant voltage (CV) charging modes, as well as various charging termination options.
• Input Power Path Management: It enables seamless power transfer from the input source to the battery while simultaneously powering the load, ensuring uninterrupted device operation.
• Battery Temperature Monitoring: This IC incorporates temperature monitoring capabilities, allowing for safe charging by adjusting the charging parameters based on the battery's temperature.
• System Status Indication: The STAT pin provides real-time information about the charging status, enabling the system to display appropriate indicators or take necessary actions.

Advantages and Disadvantages

Advantages

• High charging efficiency leads to reduced charging time and improved battery life.
• Programmable charging parameters offer flexibility for different battery chemistries and charging requirements.
• Advanced protection mechanisms ensure safe and reliable battery charging.
• Compact package size allows for easy integration into space-constrained designs.

Disadvantages

• Requires additional external components for a complete charging solution.
• Limited availability of alternative models from other manufacturers.

Working Principles

The LTC4162IUFD-FSTM#PBF operates based on a switching regulator architecture. It utilizes a high-frequency switching converter to efficiently convert the input voltage to the desired charging voltage. The charging process is controlled by an internal microcontroller, which monitors the battery voltage, current, and temperature to adjust the charging parameters accordingly.

Detailed Application Field Plans

The LTC4162IUFD-FSTM#PBF finds applications in a wide range of portable electronic devices that utilize lithium-ion batteries. Some potential application fields include: - Smartphones and tablets - Portable media players - Wearable devices - Handheld gaming consoles - GPS navigation systems - Portable medical devices

Alternative Models

While the LTC4162IUFD-FSTM#PBF is a highly capable battery charging IC, there are alternative models available from other manufacturers that offer similar functionality. Some notable alternatives include: - Texas Instruments BQ25895 - Maxim Integrated MAX77860 - Analog Devices LTC4015

(Note: The above list includes only a few examples of alternative models. Please refer to the respective manufacturers' websites for a complete list of alternatives.)

In conclusion, the LTC4162IUFD-FSTM#PBF is a versatile integrated circuit designed for efficient and reliable lithium-ion battery charging. With its advanced features, compact package, and wide application field, it serves as a crucial component in various portable electronic devices.