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LTC4120IUD

LTC4120IUD

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Wireless Power Receiver
  • Characteristics: High Efficiency, Low Power Consumption
  • Package: 16-Lead QFN
  • Essence: Inductive Power Transfer
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.95V to 5.25V
  • Output Voltage: 4.2V
  • Maximum Output Current: 400mA
  • Operating Frequency: 110kHz to 205kHz
  • Efficiency: Up to 80%
  • Standby Current: 1µA
  • Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC4120IUD has a total of 16 pins. The pin configuration is as follows:

  1. VOUT
  2. GND
  3. VIN
  4. CE
  5. ISET
  6. TS
  7. BAT
  8. SDA
  9. SCL
  10. INT
  11. N/C
  12. N/C
  13. N/C
  14. N/C
  15. N/C
  16. N/C

Functional Features

  • Integrated Full-Bridge Rectifier and Li-Ion Charger
  • Programmable Charging Current
  • Automatic Recharge
  • Thermal Regulation for Optimal Charging Rate
  • Battery Temperature Monitoring
  • Fault Detection and Reporting
  • I²C Interface for Configuration and Status Monitoring

Advantages and Disadvantages

Advantages

  • High efficiency charging
  • Low power consumption in standby mode
  • Flexible charging current programming
  • Comprehensive fault detection and reporting
  • Temperature regulation for safe charging

Disadvantages

  • Limited output current (up to 400mA)
  • Requires external components for complete charging system
  • Sensitive to input voltage fluctuations

Working Principles

The LTC4120IUD is a wireless power receiver IC that utilizes inductive power transfer technology. It integrates a full-bridge rectifier and Li-Ion battery charger into a single package. The device operates by receiving an AC magnetic field generated by a compatible transmitter. This AC signal is rectified and regulated to charge the connected Li-Ion battery.

The IC incorporates thermal regulation to optimize the charging rate based on the battery temperature. It also monitors the battery temperature to ensure safe operation. The LTC4120IUD communicates with the host system through an I²C interface, allowing configuration and status monitoring.

Detailed Application Field Plans

The LTC4120IUD is primarily designed for wireless charging applications where a Li-Ion battery needs to be charged wirelessly. Some potential application fields include:

  1. Mobile Devices: Smartphones, tablets, smartwatches
  2. Wearable Electronics: Fitness trackers, wireless earbuds
  3. Internet of Things (IoT) Devices: Sensors, remote controls
  4. Medical Devices: Portable medical equipment, hearing aids
  5. Automotive: Electric vehicle charging pads

Detailed and Complete Alternative Models

  1. LTC4120EUD: Similar specifications and features, different package (12-Lead QFN)
  2. LTC4120HUD: Higher output current (up to 800mA), otherwise similar to LTC4120IUD
  3. LTC4120MUD: Lower output current (up to 200mA), otherwise similar to LTC4120IUD

These alternative models provide options based on specific requirements and constraints of different applications.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi LTC4120IUD dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of LTC4120IUD in technical solutions:

  1. Q: What is the LTC4120IUD? A: The LTC4120IUD is a wireless power receiver IC designed for applications that require wireless charging.

  2. Q: What is the input voltage range of the LTC4120IUD? A: The input voltage range of the LTC4120IUD is typically between 4V and 19V.

  3. Q: Can the LTC4120IUD be used for wireless charging of mobile devices? A: Yes, the LTC4120IUD can be used for wireless charging of various mobile devices such as smartphones and tablets.

  4. Q: What is the maximum output current of the LTC4120IUD? A: The maximum output current of the LTC4120IUD is typically 400mA.

  5. Q: Does the LTC4120IUD support any specific wireless charging standard? A: The LTC4120IUD is compatible with the Qi wireless charging standard.

  6. Q: Can the LTC4120IUD be used in automotive applications? A: Yes, the LTC4120IUD can be used in automotive applications that require wireless charging capabilities.

  7. Q: What is the efficiency of the LTC4120IUD? A: The efficiency of the LTC4120IUD is typically around 80-90%, depending on the operating conditions.

  8. Q: Is the LTC4120IUD capable of providing overvoltage protection? A: Yes, the LTC4120IUD has built-in overvoltage protection to safeguard the charging circuitry.

  9. Q: Can the LTC4120IUD be used in low-power IoT devices? A: Yes, the LTC4120IUD is suitable for low-power IoT devices that require wireless charging capabilities.

  10. Q: Does the LTC4120IUD require any external components for operation? A: Yes, the LTC4120IUD requires a few external components such as a coil, capacitors, and resistors to form a complete wireless charging system.

Please note that these answers are general and may vary depending on specific application requirements and design considerations.