Linear Technology/QD Devices
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LTC4068XEDD-4.2#PBF
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LTC4068XEDD-4.2#PBF

Product Overview

Category

The LTC4068XEDD-4.2#PBF belongs to the category of integrated circuits (ICs) and specifically falls under the battery charger ICs.

Use

This product is primarily used for charging lithium-ion batteries in various electronic devices such as smartphones, tablets, portable media players, and other portable electronic devices.

Characteristics

  • Fast and efficient charging: The LTC4068XEDD-4.2#PBF offers a high charging efficiency, allowing for faster charging times compared to traditional chargers.
  • Safety features: It incorporates multiple safety mechanisms to protect the battery from overcharging, overvoltage, and overcurrent conditions.
  • Compact package: The LTC4068XEDD-4.2#PBF comes in a small form factor package, making it suitable for space-constrained applications.
  • High reliability: This product is designed to provide reliable and consistent performance over its operational lifespan.

Package and Quantity

The LTC4068XEDD-4.2#PBF is available in a 10-pin DFN (Dual Flat No-Lead) package. It is typically sold in reels containing a specified quantity of units, usually around 2500 pieces per reel.

Specifications

  • Input Voltage Range: 4.5V to 6V
  • Charging Voltage: 4.2V
  • Charging Current: Up to 1A
  • Operating Temperature Range: -40°C to 85°C
  • Efficiency: >90%
  • Battery Compatibility: Lithium-ion (Li-ion) batteries

Pin Configuration

The LTC4068XEDD-4.2#PBF has the following pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. PROG: Charging current programming pin
  4. STAT: Status indicator pin
  5. CE: Charge enable pin
  6. VBAT: Battery voltage pin
  7. TS: Temperature sense pin
  8. BAT: Battery connection pin
  9. VOUT: Output voltage pin
  10. NC: No connection pin

Functional Features

  • Constant current/constant voltage charging: The LTC4068XEDD-4.2#PBF provides a controlled charging process that starts with a constant current phase and transitions to a constant voltage phase once the battery reaches its desired voltage.
  • Thermal regulation: It incorporates thermal regulation to prevent overheating during the charging process, ensuring safe operation.
  • Charge termination: The charger automatically terminates the charging process when the battery is fully charged, preventing overcharging and potential damage to the battery.

Advantages and Disadvantages

Advantages

  • Fast charging capability reduces charging time for electronic devices.
  • Multiple safety features protect the battery from damage.
  • Compact package allows for easy integration into space-constrained designs.
  • High reliability ensures consistent performance.

Disadvantages

  • Limited compatibility with other battery chemistries.
  • Requires an external power source for charging.

Working Principles

The LTC4068XEDD-4.2#PBF operates based on a constant current/constant voltage charging algorithm. Initially, it supplies a constant current to the battery until it reaches a predefined voltage threshold. Once this threshold is reached, the charger switches to a constant voltage mode, maintaining a steady voltage while reducing the charging current. This approach ensures efficient and safe charging of lithium-ion batteries.

Detailed Application Field Plans

The LTC4068XEDD-4.2#PBF finds applications in various portable electronic devices, including but not limited to: - Smartphones - Tablets - Portable media players - Bluetooth headsets - Wearable devices

Its compact size, high charging efficiency, and safety features make it an ideal choice for these applications.

Detailed and Complete Alternative Models

  • LTC4068XEDD-4.1#PBF: Similar to LTC4068XEDD-4.2#PBF but with a charging voltage of 4.1V.
  • LTC4068XEDD-4.3#PBF: Similar to LTC4068XEDD-4.2#PBF but with a charging voltage of 4.3V.
  • LTC4068XEDD-4.4#PBF: Similar to LTC4068XEDD-4.2#PBF but with a charging voltage of 4.4V.

These alternative models provide flexibility in charging voltage options to accommodate different battery requirements.

In conclusion, the LTC4068XEDD-4.2#PBF is a highly efficient and reliable battery charger IC designed for lithium-ion batteries. Its fast charging capability, safety features, and compact package make it suitable for various portable electronic devices. While it has limited compatibility with other battery chemistries, its

Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng LTC4068XEDD-4.2#PBF trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of LTC4068XEDD-4.2#PBF in technical solutions:

  1. Q: What is the LTC4068XEDD-4.2#PBF? A: The LTC4068XEDD-4.2#PBF is a specific model of battery charger IC manufactured by Linear Technology (now part of Analog Devices). It is designed for charging single-cell lithium-ion/polymer batteries.

  2. Q: What is the input voltage range supported by LTC4068XEDD-4.2#PBF? A: The input voltage range supported by LTC4068XEDD-4.2#PBF is typically between 4.35V and 6V.

  3. Q: What is the maximum charge current that can be delivered by LTC4068XEDD-4.2#PBF? A: The maximum charge current that can be delivered by LTC4068XEDD-4.2#PBF is typically 800mA.

  4. Q: Can LTC4068XEDD-4.2#PBF be used for fast charging applications? A: Yes, LTC4068XEDD-4.2#PBF supports fast charging with programmable charge current and termination settings.

  5. Q: Does LTC4068XEDD-4.2#PBF have built-in thermal protection? A: Yes, LTC4068XEDD-4.2#PBF has built-in thermal protection to prevent overheating during charging.

  6. Q: What is the operating temperature range of LTC4068XEDD-4.2#PBF? A: The operating temperature range of LTC4068XEDD-4.2#PBF is typically -40°C to 85°C.

  7. Q: Can LTC4068XEDD-4.2#PBF be used for charging other types of batteries? A: No, LTC4068XEDD-4.2#PBF is specifically designed for single-cell lithium-ion/polymer batteries and may not be suitable for charging other battery chemistries.

  8. Q: Does LTC4068XEDD-4.2#PBF support overvoltage protection? A: Yes, LTC4068XEDD-4.2#PBF has built-in overvoltage protection to prevent damage to the battery during charging.

  9. Q: Can LTC4068XEDD-4.2#PBF be used in portable electronic devices? A: Yes, LTC4068XEDD-4.2#PBF is commonly used in portable electronic devices such as smartphones, tablets, and wearable devices.

  10. Q: Is LTC4068XEDD-4.2#PBF RoHS compliant? A: Yes, LTC4068XEDD-4.2#PBF is RoHS (Restriction of Hazardous Substances) compliant, meaning it meets the environmental standards set by the European Union.

Please note that the answers provided here are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information and application-specific guidance.