LTC4125EUFD#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Charger
• Characteristics: High Efficiency, Wireless Charging, Programmable Charge Current
• Package: 16-Lead QFN (Quad Flat No-Lead)
• Essence: Power Management IC for Wireless Battery Charging
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.95V to 7V
• Output Voltage: Programmable from 4.1V to 8.4V
• Charge Current: Programmable up to 400mA
• Charging Method: Resonant Inductive Coupling
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 80%
• Protection Features: Overvoltage, Overcurrent, and Thermal Shutdown

Detailed Pin Configuration

The LTC4125EUFD#TRPBF has a 16-lead QFN package with the following pin configuration:

1. VOUT: Output Voltage
2. GND: Ground
3. EN: Enable Pin
4. ISET: Charge Current Programming Pin
5. TS: Thermal Shutdown Pin
6. VDD: Supply Voltage
7. SDA: I²C Serial Data Input
8. SCL: I²C Serial Clock Input
9. INT: Interrupt Output
10. FOD: Fault Output
11. NC: No Connection
12. NC: No Connection
13. NC: No Connection
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection

Functional Features

• Wireless Battery Charging: The LTC4125EUFD#TRPBF is designed to wirelessly charge batteries using resonant inductive coupling.
• Programmable Charge Current: The charge current can be programmed to suit different battery capacities and charging requirements.
• High Efficiency: The IC offers high efficiency, ensuring minimal power loss during the charging process.
• Integrated Protection: The LTC4125EUFD#TRPBF includes protection features such as overvoltage, overcurrent, and thermal shutdown to safeguard the charging process.

Advantages and Disadvantages

Advantages: - Wireless charging eliminates the need for physical connectors, providing convenience and ease of use. - Programmable charge current allows customization for various battery types and capacities. - High efficiency reduces power wastage and improves overall charging performance.

Disadvantages: - Limited to wireless charging applications, not suitable for wired charging scenarios. - Requires additional components (e.g., coils) for wireless charging implementation.

Working Principles

The LTC4125EUFD#TRPBF operates on the principle of resonant inductive coupling. It uses an external coil to create a magnetic field that transfers energy to the receiving coil in the battery. This wireless energy transfer enables efficient charging without the need for physical connections.

The charge current is programmable through the ISET pin, allowing flexibility in charging different battery capacities. The IC also incorporates protection features to prevent overvoltage, overcurrent, and thermal issues during the charging process.

Detailed Application Field Plans

The LTC4125EUFD#TRPBF finds applications in various fields, including:

1. Consumer Electronics: Enables wireless charging for smartphones, tablets, smartwatches, etc.
2. Medical Devices: Provides wireless charging capabilities for medical implants and wearable health devices.
3. Automotive: Supports wireless charging for electric vehicles and hybrid cars.
4. Industrial Equipment: Facilitates wireless charging for portable tools, sensors, and other industrial devices.

Detailed and Complete Alternative Models

1. LTC4120EUFD#TRPBF: Similar to LTC4125EUFD#TRPBF but with a different package (16-Lead QFN).
2. LTC4123EUFD#TRPBF: Wireless battery charger IC with integrated power management features.
3. LTC4151EUFD#TRPBF: Battery charger IC with precision current and voltage monitoring capabilities.

Note: The above alternative models are just a few examples, and there are several other options available in the market.

This entry provides an overview of the LTC4125EUFD#TRPBF, a wireless battery charger IC. It covers its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.