Linear Technology/QD Devices
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LTC4058EDD-4.2#TRPBF
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LTC4058EDD-4.2#TRPBF

Product Overview

Category

The LTC4058EDD-4.2#TRPBF belongs to the category of battery charger ICs.

Use

This product is primarily used for charging lithium-ion batteries.

Characteristics

The LTC4058EDD-4.2#TRPBF has several notable characteristics: - It provides a constant current and constant voltage charging algorithm. - The charging current can be programmed using an external resistor. - It offers a programmable charge termination timer. - This IC includes a thermal regulation feature to prevent overheating during charging.

Package

The LTC4058EDD-4.2#TRPBF comes in a DFN (Dual Flat No-Lead) package.

Essence

The essence of this product lies in its ability to efficiently and safely charge lithium-ion batteries.

Packaging/Quantity

The LTC4058EDD-4.2#TRPBF is typically packaged in reels and is available in quantities suitable for mass production.

Specifications

  • Input Voltage Range: 4.5V to 6V
  • Charging Current Range: 50mA to 1A
  • Charge Termination Current: 10% of the programmed charge current
  • Charge Termination Timer Range: 4 hours to 16 hours
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC4058EDD-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 pin indicating charging status
  5. EN: Enable pin for enabling or disabling the charging process
  6. BAT: Battery connection pin

Functional Features

The LTC4058EDD-4.2#TRPBF offers the following functional features:

  1. Constant Current and Constant Voltage Charging: The IC provides a charging algorithm that maintains a constant current until the battery voltage reaches the programmed voltage, after which it switches to constant voltage mode.
  2. Programmable Charging Current: The charging current can be set using an external resistor connected to the PROG pin.
  3. Charge Termination Timer: A programmable timer allows for automatic termination of the charging process after a specified duration.
  4. Thermal Regulation: The IC includes thermal regulation to prevent overheating during charging.

Advantages and Disadvantages

Advantages

  • Efficient and safe charging of lithium-ion batteries
  • Programmable charging current and termination timer
  • Thermal regulation prevents overheating

Disadvantages

  • Limited input voltage range (4.5V to 6V)
  • Requires external resistor for programming charging current

Working Principles

The LTC4058EDD-4.2#TRPBF operates based on a constant current and constant voltage charging algorithm. When the battery is connected, the IC initially charges the battery with a constant current until the battery voltage reaches the programmed voltage. At this point, the IC switches to constant voltage mode, maintaining a steady voltage while reducing the charging current. Once the charge termination conditions are met (e.g., reaching the programmed charge termination current or timer expiration), the charging process is automatically terminated.

Detailed Application Field Plans

The LTC4058EDD-4.2#TRPBF finds applications in various fields, including: 1. Portable electronic devices: Used for charging lithium-ion batteries in smartphones, tablets, and portable media players. 2. Wearable devices: Enables efficient charging of lithium-ion batteries in smartwatches, fitness trackers, and other wearable gadgets. 3. IoT devices: Suitable for charging batteries in Internet of Things (IoT) devices such as sensors, smart home devices, and wireless communication modules. 4. Medical devices: Used in medical equipment that relies on lithium-ion batteries, including portable monitors, infusion pumps, and diagnostic devices.

Detailed and Complete Alternative Models

  1. LTC4058EDD-4.1#TRPBF: Similar to LTC4058EDD-4.2#TRPBF but with a different programmed voltage.
  2. LTC4058EDD-4.3#TRPBF: Similar to LTC4058EDD-4.2#TRPBF but with a different programmed voltage.
  3. LTC4058EDD-4.4#TRPBF: Similar to LTC4058EDD-4.2#TRPBF but with a different programmed voltage.
  4. LTC4058EDD-4.5#TRPBF: Similar to LTC4058EDD-4.2#TRPBF but with a different programmed voltage.

These alternative models provide options for charging lithium-ion batteries with different voltage requirements.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням LTC4058EDD-4.2#TRPBF у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of LTC4058EDD-4.2#TRPBF in technical solutions:

  1. Q: What is LTC4058EDD-4.2#TRPBF? A: LTC4058EDD-4.2#TRPBF is a specific model number for a battery charger IC manufactured by Linear Technology (now part of Analog Devices). It is designed to charge single-cell lithium-ion/polymer batteries.

  2. Q: What is the input voltage range for LTC4058EDD-4.2#TRPBF? A: The input voltage range for LTC4058EDD-4.2#TRPBF is typically between 4.75V and 6V.

  3. Q: What is the output voltage of LTC4058EDD-4.2#TRPBF? A: The output voltage of LTC4058EDD-4.2#TRPBF is fixed at 4.2V, which is suitable for charging lithium-ion/polymer batteries.

  4. Q: Can LTC4058EDD-4.2#TRPBF charge multiple batteries simultaneously? A: No, LTC4058EDD-4.2#TRPBF is designed to charge a single-cell battery at a time.

  5. Q: What is the maximum charging current supported by LTC4058EDD-4.2#TRPBF? A: The maximum charging current supported by LTC4058EDD-4.2#TRPBF is typically 800mA.

  6. Q: Does LTC4058EDD-4.2#TRPBF have built-in overvoltage protection? A: Yes, LTC4058EDD-4.2#TRPBF has built-in overvoltage protection to prevent the battery from being charged beyond its safe voltage limit.

  7. Q: Can LTC4058EDD-4.2#TRPBF be used for fast charging applications? A: No, LTC4058EDD-4.2#TRPBF is not specifically designed for fast charging. It follows a constant current/constant voltage charging profile.

  8. Q: What is the typical efficiency of LTC4058EDD-4.2#TRPBF? A: The typical efficiency of LTC4058EDD-4.2#TRPBF is around 85-90%, depending on the input and output conditions.

  9. Q: Does LTC4058EDD-4.2#TRPBF have thermal shutdown protection? A: Yes, LTC4058EDD-4.2#TRPBF has built-in thermal shutdown protection to prevent overheating during operation.

  10. Q: Can LTC4058EDD-4.2#TRPBF be used in portable electronic devices? A: Yes, LTC4058EDD-4.2#TRPBF is commonly used in various portable electronic devices like smartphones, tablets, and wearable devices for charging their lithium-ion/polymer batteries.

Please note that the answers provided here are general and may vary based on specific application requirements and datasheet specifications.