LTC4002EDD-8.4#PBF

Product Overview

Category

LTC4002EDD-8.4#PBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in battery charging applications.

Characteristics

The LTC4002EDD-8.4#PBF is known for its high efficiency and precision in charging batteries. It offers a wide input voltage range and supports various battery chemistries, making it versatile for different applications.

Package

The LTC4002EDD-8.4#PBF comes in a DFN (Dual Flat No-Lead) package, which provides excellent thermal performance and compact size.

Essence

The essence of LTC4002EDD-8.4#PBF lies in its ability to efficiently charge batteries while ensuring safety and reliability.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 4V to 36V
• Charging Current: Up to 4A
• Battery Chemistry Compatibility: Li-Ion, Li-Polymer, NiMH, NiCd
• Charge Termination Options: Voltage, Current, Timer
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. PROG: Programming pin for setting charging parameters
4. BAT: Battery connection pin
5. STAT: Status indicator pin
6. TIMER: Timer control pin
7. ISET: Current limit setting pin

Functional Features

• High charging efficiency
• Wide input voltage range
• Multiple battery chemistry compatibility
• Programmable charging parameters
• Safety features such as overvoltage and overcurrent protection
• Status indicator for charging progress monitoring
• Timer control for charge termination

Advantages and Disadvantages

Advantages

• High efficiency ensures faster charging times
• Wide input voltage range allows for versatile applications
• Compatibility with various battery chemistries increases flexibility
• Programmable charging parameters enable customization
• Safety features protect batteries from overcharging or damage
• Status indicator and timer control enhance user convenience

Disadvantages

• Limited to a maximum charging current of 4A
• Requires programming for optimal charging performance

Working Principles

The LTC4002EDD-8.4#PBF operates based on a switching regulator topology. It utilizes a high-frequency PWM (Pulse Width Modulation) technique to regulate the charging current and voltage. The charging parameters can be programmed through the PROG pin, allowing users to customize the charging process according to their specific requirements.

Detailed Application Field Plans

The LTC4002EDD-8.4#PBF finds extensive application in various fields, including:

1. Portable electronic devices: Enables efficient and safe charging of batteries in smartphones, tablets, and portable gaming consoles.
2. Electric vehicles: Facilitates the charging of electric vehicle batteries, ensuring optimal performance and longevity.
3. Renewable energy systems: Supports the charging of batteries used in solar power systems and wind turbines, enabling energy storage for later use.
4. Industrial equipment: Provides reliable battery charging solutions for industrial machinery and equipment, enhancing productivity and uptime.

Detailed and Complete Alternative Models

1. LTC4002EDD-8.2#PBF: Similar to LTC4002EDD-8.4#PBF but with a charging termination voltage of 8.2V instead of 8.4V.
2. LTC4002EDD-7.4#PBF: Similar to LTC4002EDD-8.4#PBF but with a charging termination voltage of 7.4V instead of 8.4V.
3. LTC4002EDD-5.0#PBF: Similar to LTC4002EDD-8.4#PBF but with a charging termination voltage of 5.0V instead of 8.4V.

These alternative models provide options for different battery voltage requirements while maintaining similar functionality and characteristics.

In conclusion, the LTC4002EDD-8.4#PBF is a highly efficient and versatile integrated circuit designed for battery charging applications. Its wide input voltage range, compatibility with various battery chemistries, and programmable charging parameters make it suitable for a wide range of applications. While it offers numerous advantages such as high efficiency and safety features, it has limitations in terms of maximum charging current and programming requirements. Nonetheless, its working principles and detailed application field plans demonstrate its significance in powering portable electronic devices, electric vehicles, renewable energy systems, and industrial equipment. Additionally, the availability of alternative models provides flexibility in meeting specific voltage requirements.