LT3650IDD-8.4#TRPBF

Product Overview

Category

The LT3650IDD-8.4#TRPBF belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for battery charging applications, providing efficient and reliable charging solutions for various devices and systems.

Characteristics

• High efficiency: The LT3650IDD-8.4#TRPBF offers high charging efficiency, minimizing energy loss during the charging process.
• Wide input voltage range: It can accept a wide range of input voltages, making it suitable for different power sources.
• Fast charging capability: This IC supports fast charging, reducing the charging time for batteries.
• Thermal protection: It incorporates thermal protection mechanisms to prevent overheating during operation.
• Compact package: The LT3650IDD-8.4#TRPBF is available in a small and compact package, enabling space-saving designs.

Package

The LT3650IDD-8.4#TRPBF is packaged in a 10-Lead DFN (3mm x 3mm) package, which provides good thermal performance and ease of integration into circuit boards.

Essence

The essence of the LT3650IDD-8.4#TRPBF lies in its ability to efficiently charge batteries while offering flexibility in terms of input voltage range and fast charging capabilities.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 4V to 8V
• Output Voltage: 8.4V
• Charging Current: Up to 2A
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 95%
• Control Method: Constant Current/Constant Voltage (CC/CV)
• Protection Features: Thermal shutdown, reverse battery protection, overvoltage protection

Detailed Pin Configuration

The LT3650IDD-8.4#TRPBF has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. PROG: Programming pin for setting charging current
4. STAT: Status indicator pin
5. VFB: Feedback voltage pin
6. ISET: Current limit programming pin
7. BAT: Battery connection pin
8. TIMER: Timer programming pin
9. TS: Temperature sense pin
10. VOUT: Output voltage pin

Functional Features

• Constant Current/Constant Voltage (CC/CV) charging algorithm
• Automatic recharge feature after battery discharge
• Programmable charging current and timer settings
• LED status indicator for charging progress
• Reverse battery protection to prevent damage
• Thermal shutdown protection to prevent overheating

Advantages and Disadvantages

Advantages

• High charging efficiency reduces energy loss
• Wide input voltage range allows compatibility with various power sources
• Fast charging capability reduces charging time
• Compact package enables space-saving designs
• Protection features ensure safe operation

Disadvantages

• Limited output voltage options (specifically designed for 8.4V)
• Requires external components for complete charging circuit implementation

Working Principles

The LT3650IDD-8.4#TRPBF operates based on a constant current/constant voltage (CC/CV) charging algorithm. It regulates the charging current to maintain a constant level until the battery reaches a specific voltage threshold. Once the threshold is reached, it switches to constant voltage mode, maintaining a steady voltage while reducing the charging current.

The IC continuously monitors the battery voltage, temperature, and charging progress to ensure safe and efficient charging. It incorporates protection mechanisms such as thermal shutdown and reverse battery protection to prevent damage to the battery or the charging circuit.

Detailed Application Field Plans

The LT3650IDD-8.4#TRPBF finds applications in various fields, including: 1. Portable electronic devices: It can be used to charge batteries in smartphones, tablets, portable gaming consoles, etc. 2. Power tools: This IC can efficiently charge batteries in cordless power tools, extending their runtime. 3. Electric vehicles: It can be employed in electric vehicle charging systems for efficient and reliable battery charging. 4. Renewable energy systems: The LT3650IDD-8.4#TRPBF is suitable for charging batteries in solar-powered systems, wind turbines, etc.

Detailed and Complete Alternative Models

1. LT3650IDD-8.2#TRPBF: Similar to LT3650IDD-8.4#TRPBF but designed for an output voltage of 8.2V.
2. LT3650IDD-7.4#TRPBF: Designed for an output voltage of 7.4V, suitable for specific battery requirements.
3. LT3650IDD-