LTC4121EUD#PBF

Product Overview

Category

LTC4121EUD#PBF belongs to the category of integrated circuits (ICs) used in power management.

Use

This product is primarily used for wireless power transfer applications, specifically for charging batteries wirelessly.

Characteristics

• Integrated circuit designed for wireless power transfer
• Supports efficient charging of batteries
• Provides a compact and reliable solution for wireless charging

Package

LTC4121EUD#PBF is available in a small 12-pin QFN package, which ensures easy integration into various electronic devices.

Essence

The essence of LTC4121EUD#PBF lies in its ability to enable wireless charging of batteries, eliminating the need for physical connectors and cables.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 4V to 19V
• Output Voltage Range: 2.5V to 10V
• Maximum Charging Current: 400mA
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 80%
• Control Interface: I2C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. SDA: I2C data pin
5. SCL: I2C clock pin
6. EN: Enable pin
7. FLT: Fault indicator pin
8. NC: No connection
9. NC: No connection
10. BAT: Battery connection pin
11. NC: No connection
12. NC: No connection

Functional Features

• Wireless power transfer capability
• Efficient battery charging
• I2C interface for control and monitoring
• Fault indicator for easy troubleshooting

Advantages and Disadvantages

Advantages

• Enables wireless charging, providing convenience and eliminating the need for physical connectors
• Compact size allows for easy integration into various electronic devices
• Efficient charging ensures optimal battery performance
• I2C interface enables control and monitoring of charging parameters

Disadvantages

• Limited maximum charging current (400mA)
• Requires compatible wireless charging receiver in the device being charged

Working Principles

LTC4121EUD#PBF operates based on the principle of resonant inductive coupling. It uses a high-frequency magnetic field to transfer power wirelessly between the transmitter (charging pad) and the receiver (device being charged). The integrated circuit efficiently converts the received power into a suitable voltage and current for charging the battery.

Detailed Application Field Plans

LTC4121EUD#PBF finds applications in various fields, including: 1. Consumer electronics: Wireless charging pads for smartphones, smartwatches, and other portable devices. 2. Automotive: Integration into electric vehicles for wireless charging of batteries. 3. Medical devices: Wireless charging solutions for implantable medical devices. 4. Industrial automation: Integration into wireless charging systems for industrial equipment.

Detailed and Complete Alternative Models

1. LTC4120EUD#PBF: Similar to LTC4121EUD#PBF but with a higher maximum charging current of 800mA.
2. LTC4123EUD#PBF: Offers additional features such as adjustable output voltage and temperature monitoring.

Note: This is not an exhaustive list, and there may be other alternative models available from different manufacturers.

In conclusion, LTC4121EUD#PBF is a compact and efficient integrated circuit designed for wireless power transfer and battery charging applications. Its ability to enable wireless charging provides convenience and eliminates the need for physical connectors. With its various features and specifications, it finds applications in consumer electronics, automotive, medical devices, and industrial automation.