LTC4013EUFD#PBF

Product Overview

Category

LTC4013EUFD#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, laptops, and portable power banks.

Characteristics

• High efficiency: The LTC4013EUFD#PBF offers high charging efficiency, ensuring faster and more efficient battery charging.
• Wide input voltage range: It can accept a wide range of input voltages, making it suitable for use with different power sources.
• Advanced protection features: This IC incorporates various protection mechanisms like overvoltage protection, overcurrent protection, and thermal shutdown, ensuring safe and reliable charging.

Package

The LTC4013EUFD#PBF comes in a small form factor package known as a 28-lead 4mm x 5mm QFN (Quad Flat No-Lead) package. This package provides good thermal performance and ease of integration into circuit designs.

Essence

The essence of LTC4013EUFD#PBF lies in its ability to efficiently charge lithium-ion batteries while providing necessary protection features.

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 35V
• Charging Current Range: Up to 4A
• Maximum Charging Voltage: 4.2V per cell
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC4013EUFD#PBF has a total of 28 pins. Here is a detailed pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VCC: Supply voltage pin
4. PGND: Power ground pin
5. BAT: Battery connection pin
6. ISET: Charging current set pin
7. TS: Temperature sense pin
8. STAT: Status output pin
9. INTVCC: Internal supply voltage pin
10. SDA: I2C data pin
11. SCL: I2C clock pin
12. ILIM: Input current limit pin
13. PROG: Programming pin
14. VREF: Reference voltage pin
15. VFB: Feedback voltage pin
16. COMP: Compensation pin
17. SS: Soft-start pin
18. FB1: Feedback pin 1
19. FB2: Feedback pin 2
20. FB3: Feedback pin 3
21. FB4: Feedback pin 4
22. FB5: Feedback pin 5
23. FB6: Feedback pin 6
24. FB7: Feedback pin 7
25. FB8: Feedback pin 8
26. FB9: Feedback pin 9
27. FB10: Feedback pin 10
28. FB11: Feedback pin 11

Functional Features

• Constant Current (CC) and Constant Voltage (CV) charging modes
• Programmable charging current and voltage
• Automatic recharge feature
• Battery temperature monitoring and protection
• I2C interface for advanced control and monitoring capabilities
• Fault detection and reporting

Advantages and Disadvantages

Advantages

• High charging efficiency leads to faster charging times.
• Wide input voltage range allows compatibility with various power sources.
• Advanced protection features ensure safe and reliable charging.
• I2C interface enables advanced control and monitoring capabilities.

Disadvantages

• Requires additional external components for a complete charging solution.
• Relatively complex pin configuration may require careful PCB layout.

Working Principles

The LTC4013EUFD#PBF operates based on a CC-CV charging algorithm. In the CC mode, it delivers a constant charging current to the battery until the voltage reaches the programmed CV level. It then switches to the CV mode and maintains a constant voltage while reducing the charging current. This ensures optimal charging and prevents overcharging.

The IC continuously monitors the battery temperature and adjusts the charging parameters accordingly to prevent overheating and ensure safe operation. The I2C interface allows for advanced control and monitoring of the charging process, enabling customization and fine-tuning of charging profiles.

Detailed Application Field Plans

The LTC4013EUFD#PBF finds applications in various fields, including: - Consumer electronics: Charging lithium-ion batteries in smartphones, tablets, laptops, and portable power banks. - Industrial equipment: Battery charging for handheld devices, wireless sensors, and IoT devices. - Automotive: Charging electric vehicle auxiliary batteries and battery management systems. - Renewable energy: Charging batteries in solar-powered systems and energy storage applications.

Detailed and Complete Alternative Models

1. LTC4000: High-efficiency battery charger with wide input