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LT3650IDD-4.2#TRPBF
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LT3650IDD-4.2#TRPBF

Product Overview

Category

The LT3650IDD-4.2#TRPBF belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for battery charging applications, providing a reliable and efficient solution for charging lithium-ion batteries.

Characteristics

The LT3650IDD-4.2#TRPBF offers several key characteristics that make it suitable for battery charging purposes. It features a high efficiency switching regulator, which ensures optimal power conversion. Additionally, it incorporates a precision voltage reference and current sense amplifier, enabling accurate charging control. The device also includes various safety features such as thermal shutdown and reverse battery protection.

Package

The LT3650IDD-4.2#TRPBF comes in a small form factor package known as DFN (Dual Flat No-Lead). This package type provides excellent thermal performance and compact size, making it suitable for space-constrained applications.

Essence

The essence of the LT3650IDD-4.2#TRPBF lies in its ability to efficiently charge lithium-ion batteries while ensuring safety and reliability.

Packaging/Quantity

This product is typically available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 4V to 8V
  • Output Voltage: 4.2V
  • Maximum Charging Current: 2A
  • Operating Temperature Range: -40°C to 85°C
  • Efficiency: Up to 95%
  • Shutdown Current: <1µA

Detailed Pin Configuration

The LT3650IDD-4.2#TRPBF has the following pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. PROG: Programming pin for setting the charging current
  4. STAT: Status indicator pin
  5. BAT: Battery connection pin

Functional Features

  • High efficiency switching regulator for optimal power conversion
  • Precision voltage reference and current sense amplifier for accurate charging control
  • Safety features including thermal shutdown and reverse battery protection
  • Programmable charging current for flexibility in different applications
  • Status indicator pin for monitoring the charging process

Advantages and Disadvantages

Advantages

  • High charging efficiency ensures faster charging times
  • Accurate charging control prevents overcharging and extends battery life
  • Safety features protect both the battery and the charging circuitry
  • Compact package size allows for easy integration into various devices

Disadvantages

  • Limited input voltage range may restrict compatibility with certain power sources
  • Higher cost compared to some other battery charging solutions

Working Principles

The LT3650IDD-4.2#TRPBF operates based on a switching regulator topology. It converts the input voltage to the desired output voltage using high-frequency switching. The charging current is controlled by the precision voltage reference and current sense amplifier, ensuring accurate and safe charging of the lithium-ion battery.

Detailed Application Field Plans

The LT3650IDD-4.2#TRPBF finds application in various fields where efficient and reliable battery charging is required. Some potential application areas include:

  1. Portable electronic devices such as smartphones, tablets, and laptops
  2. Wearable devices like smartwatches and fitness trackers
  3. Industrial equipment and machinery utilizing rechargeable batteries
  4. Electric vehicles and hybrid electric vehicles
  5. Renewable energy systems incorporating lithium-ion battery storage

Detailed and Complete Alternative Models

  1. LT3650IDD-4.1#TRPBF: Similar to LT3650IDD-4.2#TRPBF but with an output voltage of 4.1V.
  2. LT3650IDD-4.3#TRPBF: Similar to LT3650IDD-4.2#TRPBF but with an output voltage of 4.3V.
  3. LT3650IDD-4.4#TRPBF: Similar to LT3650IDD-4.2#TRPBF but with an output voltage of 4.4V.

These alternative models provide flexibility in charging different lithium-ion battery configurations with varying voltage requirements.

In conclusion, the LT3650IDD-4.2#TRPBF is a highly efficient and reliable power management IC designed for charging lithium-ion batteries. Its compact size, safety features, and accurate charging control make it suitable for a wide range of applications.

10個與LT3650IDD-4.2#TRPBF在技術方案中應用相關的常見問題與解答

Sure! Here are 10 common questions and answers related to the application of LT3650IDD-4.2#TRPBF in technical solutions:

  1. Q: What is the LT3650IDD-4.2#TRPBF? A: The LT3650IDD-4.2#TRPBF is a specific model of a battery charger IC designed for charging single-cell lithium-ion/polymer batteries.

  2. Q: What is the input voltage range of the LT3650IDD-4.2#TRPBF? A: The input voltage range of the LT3650IDD-4.2#TRPBF is typically between 4.95V and 32V.

  3. Q: What is the output voltage of the LT3650IDD-4.2#TRPBF? A: The LT3650IDD-4.2#TRPBF provides a fixed output voltage of 4.2V, suitable for charging a single-cell lithium-ion/polymer battery.

  4. Q: Can the LT3650IDD-4.2#TRPBF charge other types of batteries? A: No, the LT3650IDD-4.2#TRPBF is specifically designed for charging single-cell lithium-ion/polymer batteries and may not be suitable for other battery chemistries.

  5. Q: What is the maximum charging current supported by the LT3650IDD-4.2#TRPBF? A: The LT3650IDD-4.2#TRPBF supports a maximum charging current of up to 2A.

  6. Q: Does the LT3650IDD-4.2#TRPBF have built-in thermal protection? A: Yes, the LT3650IDD-4.2#TRPBF includes built-in thermal protection to prevent overheating during charging.

  7. Q: Can the LT3650IDD-4.2#TRPBF be used in portable devices? A: Yes, the LT3650IDD-4.2#TRPBF is suitable for use in portable devices due to its compact size and low power consumption.

  8. Q: Does the LT3650IDD-4.2#TRPBF support trickle charging? A: Yes, the LT3650IDD-4.2#TRPBF supports trickle charging to maintain the battery at a fully charged state without overcharging it.

  9. Q: Is the LT3650IDD-4.2#TRPBF programmable? A: No, the LT3650IDD-4.2#TRPBF does not have programmable features. It operates based on its fixed specifications.

  10. Q: What are some typical applications of the LT3650IDD-4.2#TRPBF? A: The LT3650IDD-4.2#TRPBF is commonly used in applications such as portable electronics, wireless devices, and battery-powered systems that require single-cell lithium-ion/polymer battery charging.

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