LTC4123EDC

Product Overview

Category: Integrated Circuit (IC)

Use: The LTC4123EDC is a versatile integrated circuit designed for wireless power transfer applications. It enables efficient charging of batteries or supercapacitors in various electronic devices wirelessly.

Characteristics: - High efficiency power transfer - Wide input voltage range - Adjustable output voltage and current - Built-in protection features - Compact package design

Package: LTC4123EDC is available in a small 12-pin DFN (Dual Flat No-Lead) package, which ensures easy integration into space-constrained designs.

Essence: The essence of LTC4123EDC lies in its ability to provide wireless power transfer solutions, eliminating the need for physical connectors and enabling convenient charging of portable devices.

Packaging/Quantity: The LTC4123EDC is typically sold in reels containing 250 units per reel.

Specifications

The LTC4123EDC offers the following specifications:

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 2.5V to 5.25V
• Maximum Output Current: 400mA
• Operating Frequency: 6.78MHz
• Efficiency: Up to 80%
• Quiescent Current: 50µA (typical)
• Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC4123EDC features a 12-pin DFN package with the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. EN: Enable pin
5. ISET: Current limit setting pin
6. NC: No connection
7. NC: No connection
8. NC: No connection
9. NC: No connection
10. NC: No connection
11. NC: No connection
12. NC: No connection

Functional Features

The LTC4123EDC offers the following functional features:

• Wireless power receiver with integrated rectifier and regulator
• Automatic load optimization for maximum power transfer efficiency
• Programmable output voltage and current limit
• Soft-start feature to minimize inrush current
• Thermal shutdown and short-circuit protection

Advantages and Disadvantages

Advantages: - Enables wireless charging, eliminating the need for physical connectors - Wide input voltage range allows compatibility with various power sources - Adjustable output voltage and current provide flexibility for different applications - Compact package design facilitates integration into space-constrained designs - Built-in protection features ensure safe operation

Disadvantages: - Maximum output current limited to 400mA, may not be suitable for high-power devices - Operating frequency of 6.78MHz may cause interference with certain sensitive electronic components

Working Principles

The LTC4123EDC utilizes a resonant wireless power transfer technique to efficiently transfer energy from a transmitter coil to a receiver coil. It employs an integrated rectifier and regulator to convert the received AC power into a regulated DC output voltage. The device continuously optimizes the load impedance to maximize power transfer efficiency.

Detailed Application Field Plans

The LTC4123EDC finds applications in various fields, including but not limited to:

1. Consumer Electronics: Wireless charging pads for smartphones, smartwatches, and other portable devices.
2. Medical Devices: Implantable medical devices that require wireless charging capabilities.
3. Automotive: Electric vehicle charging systems and wireless charging solutions for electric vehicles.
4. Industrial Automation: Wireless power transfer for sensors, actuators, and other industrial devices.
5. Internet of Things (IoT): Battery-powered IoT devices that can be wirelessly charged.

Detailed and Complete Alternative Models

1. LTC4120EDC: Similar to LTC4123EDC, but with a higher maximum output current of 800mA.
2. LTC4124EDC: A variant with additional features such as battery temperature monitoring and communication interface.
3. LTC4125EDC: Designed for high-power applications, offering a maximum output current of 1A.

These alternative models provide options with varying specifications and capabilities to suit different application requirements.

Word count: 536 words