LTC4012IUF-2#PBF

Product Overview

Category

The LTC4012IUF-2#PBF belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

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

Characteristics

• Integrated circuit for battery charging
• Specifically designed for lithium-ion batteries
• Suitable for a wide range of portable electronic devices
• High efficiency charging algorithm
• Compact package for space-constrained applications

Package

The LTC4012IUF-2#PBF is available in a small form factor 16-pin QFN (Quad Flat No-Lead) package. This package offers excellent thermal performance and ease of integration into compact electronic devices.

Essence

The essence of the LTC4012IUF-2#PBF lies in its ability to efficiently charge lithium-ion batteries while providing protection against overcharging, overvoltage, and overcurrent conditions.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 32V
• Charging Current Range: Up to 4A
• Programmable Charge Current Limit
• Programmable Float Voltage
• Battery Temperature Monitoring
• Overvoltage Protection
• Overcurrent Protection
• Under Voltage Lockout
• Thermal Shutdown Protection

Detailed Pin Configuration

1. VIN - Input Voltage
2. GND - Ground
3. VBAT - Battery Voltage
4. TS - Battery Temperature Sense
5. PROG - Charge Current Programming
6. FLT - Fault Indicator
7. ISET - Float Voltage Programming
8. STAT - Status Indicator
9. SDA - I2C Data Line
10. SCL - I2C Clock Line
11. INTVCC - Internal Voltage Regulator Output
12. VCC - Supply Voltage
13. BAT - Battery Connection
14. NC - No Connect
15. NC - No Connect
16. GND - Ground

Functional Features

• High-efficiency charging algorithm for fast and safe charging
• Programmable charge current limit and float voltage for flexibility
• Battery temperature monitoring to prevent overheating
• Fault indicator for easy troubleshooting
• I2C interface for advanced control and monitoring capabilities
• Status indicator for visual feedback on charging status

Advantages and Disadvantages

Advantages

• Efficient charging algorithm ensures fast and safe charging of lithium-ion batteries.
• Programmable charge current and float voltage allow customization for different battery types and capacities.
• Battery temperature monitoring prevents overheating and extends battery life.
• I2C interface enables advanced control and monitoring features.
• Compact package size suitable for space-constrained applications.

Disadvantages

• Limited to lithium-ion battery charging applications, not compatible with other battery chemistries.
• Requires additional external components for complete battery charging system implementation.

Working Principles

The LTC4012IUF-2#PBF operates based on a high-efficiency switching regulator architecture combined with a sophisticated charging algorithm. It regulates the charging current and voltage to ensure optimal charging performance while protecting the battery from overcharging, overvoltage, and overcurrent conditions. The integrated temperature sensor monitors the battery temperature, allowing the charger to adjust the charging parameters accordingly.

Detailed Application Field Plans

The LTC4012IUF-2#PBF is widely used in various portable electronic devices that require lithium-ion battery charging capabilities. Some common application fields include:

1. Smartphones and Tablets: Enables fast and efficient charging of the built-in lithium-ion batteries in smartphones and tablets, ensuring longer battery life and shorter charging times.
2. Portable Media Players: Provides a reliable and safe charging solution for portable media players, allowing users to enjoy their favorite music and videos on the go without worrying about battery life.
3. Wearable Devices: Powers wearable devices such as smartwatches and fitness trackers, ensuring uninterrupted usage throughout the day.
4. Portable Gaming Consoles: Enables quick charging of lithium-ion batteries in portable gaming consoles, allowing gamers to enjoy extended gameplay sessions without interruption.

Detailed and Complete Alternative Models

1. LTC4012EUFD-2#PBF
2. LTC4012IUFD-2#PBF
3. LTC4012CUFD-2#PBF
4. LTC4012EUF-2#PBF
5. LTC4012IUF-2#TRPBF

These alternative models offer similar functionality and features, providing flexibility in choosing the most suitable option for specific applications.

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