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LTC4002EDD-4.2#PBF
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LTC4002EDD-4.2#PBF

Product Overview

Category

LTC4002EDD-4.2#PBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in battery charging applications.

Characteristics

The LTC4002EDD-4.2#PBF is known for its high efficiency and precision in charging lithium-ion batteries. It offers a wide input voltage range and supports fast charging.

Package

The LTC4002EDD-4.2#PBF comes in a DFN-8 package, which stands for Dual Flat No-leads. This package provides a compact form factor and efficient heat dissipation.

Essence

The essence of LTC4002EDD-4.2#PBF lies in its ability to efficiently charge lithium-ion batteries while ensuring safety and reliability.

Packaging/Quantity

This product is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Input Voltage Range: 4.5V to 36V
  • Charging Voltage: 4.2V
  • Charging Current: Up to 2A
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. PROG: Programming pin for setting charging current
  4. STAT: Status pin indicating charging status
  5. CE: Enable pin for controlling charging operation
  6. VBAT: Battery voltage pin
  7. TS: Temperature sense pin for thermal management
  8. VOUT: Output voltage pin

Functional Features

  • Wide input voltage range allows compatibility with various power sources.
  • High charging efficiency minimizes energy loss during the charging process.
  • Precision charging voltage ensures optimal battery performance.
  • Fast charging capability reduces charging time.
  • Temperature sensing enables thermal management for safe operation.

Advantages and Disadvantages

Advantages

  • High efficiency charging
  • Wide input voltage range
  • Fast charging capability
  • Compact form factor
  • Precise charging voltage control

Disadvantages

  • Limited to lithium-ion battery charging applications
  • Requires external programming for charging current adjustment

Working Principles

The LTC4002EDD-4.2#PBF operates based on a switching regulator topology. It utilizes a high-frequency switching circuit to convert the input voltage to a regulated charging voltage suitable for lithium-ion batteries. The charging current is controlled through an external resistor connected to the PROG pin. The device monitors the battery voltage and adjusts the charging process accordingly, ensuring safe and efficient charging.

Detailed Application Field Plans

The LTC4002EDD-4.2#PBF finds extensive use in various battery-powered applications, including:

  1. Portable electronic devices such as smartphones, tablets, and laptops.
  2. Electric vehicles and hybrid electric vehicles.
  3. Power tools and cordless equipment.
  4. Energy storage systems and backup power supplies.
  5. Medical devices and wearable electronics.

Detailed and Complete Alternative Models

  1. LTC4002EDD-4.1#PBF: Similar to LTC4002EDD-4.2#PBF but with a charging voltage of 4.1V.
  2. LTC4002EDD-4.3#PBF: Similar to LTC4002EDD-4.2#PBF but with a charging voltage of 4.3V.
  3. LTC4002EDD-4.2I#PBF: Industrial-grade version of LTC4002EDD-4.2#PBF with extended temperature range.

These alternative models provide flexibility in charging voltage selection and cater to specific application requirements.

In conclusion, the LTC4002EDD-4.2#PBF is a highly efficient and precise lithium-ion battery charger. Its wide input voltage range, fast charging capability, and compact form factor make it suitable for various battery-powered applications. While it requires external programming for charging current adjustment, its advantages outweigh the disadvantages. The detailed pin configuration, functional features, working principles, application field plans, and alternative models provide a comprehensive understanding of this product.

Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng LTC4002EDD-4.2#PBF sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of LTC4002EDD-4.2#PBF in technical solutions:

  1. Q: What is LTC4002EDD-4.2#PBF? A: LTC4002EDD-4.2#PBF is a specific model number for a battery charger IC manufactured by Linear Technology (now part of Analog Devices). It is designed for charging single-cell lithium-ion batteries.

  2. Q: What is the input voltage range for LTC4002EDD-4.2#PBF? A: The input voltage range for LTC4002EDD-4.2#PBF is typically between 4.5V and 28V.

  3. Q: What is the maximum charge current supported by LTC4002EDD-4.2#PBF? A: LTC4002EDD-4.2#PBF can support a maximum charge current of up to 2A.

  4. Q: Can LTC4002EDD-4.2#PBF be used for fast charging applications? A: Yes, LTC4002EDD-4.2#PBF supports fast charging with its high charge current capability.

  5. Q: Does LTC4002EDD-4.2#PBF have built-in thermal protection? A: Yes, LTC4002EDD-4.2#PBF has built-in thermal protection to prevent overheating during charging.

  6. Q: Can LTC4002EDD-4.2#PBF be used for charging other types of batteries? A: No, LTC4002EDD-4.2#PBF is specifically designed for charging single-cell lithium-ion batteries and may not be suitable for other battery chemistries.

  7. Q: What is the purpose of the "PROG" pin on LTC4002EDD-4.2#PBF? A: The "PROG" pin is used to set the charge current limit by connecting an external resistor.

  8. Q: Does LTC4002EDD-4.2#PBF have overvoltage protection? A: Yes, LTC4002EDD-4.2#PBF has built-in overvoltage protection to prevent the battery from being charged beyond its safe voltage limit.

  9. Q: Can LTC4002EDD-4.2#PBF be used in portable electronic devices? A: Yes, LTC4002EDD-4.2#PBF can be used in various portable electronic devices that require lithium-ion battery charging.

  10. Q: Are there any evaluation boards or reference designs available for LTC4002EDD-4.2#PBF? A: Yes, Analog Devices provides evaluation boards and reference designs for LTC4002EDD-4.2#PBF, which can help with the implementation of the IC in different applications.

Please note that these answers are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.