Linear Technology/Analog Devices
L'image peut être une représentation.
Voir les spécifications pour les détails du produit.
LTC4012CUF-2#TRPBF
Voir les détails DataSheets

LTC4012CUF-2#TRPBF

Product Overview

Category

The LTC4012CUF-2#TRPBF belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging lithium-ion batteries, making it suitable for a wide range of portable electronic devices such as smartphones, tablets, and laptops.

Characteristics

  • Integrated circuit designed for battery charging
  • Specifically optimized for lithium-ion batteries
  • High efficiency charging algorithm
  • Wide input voltage range
  • Multiple safety features to protect the battery and device

Package

The LTC4012CUF-2#TRPBF comes in a small form factor package known as a 24-Lead QFN (Quad Flat No-Lead) package. This package offers excellent thermal performance and ease of integration into various electronic devices.

Essence

The essence of the LTC4012CUF-2#TRPBF lies in its ability to efficiently charge lithium-ion batteries while ensuring their safety and longevity.

Packaging/Quantity

This product is typically packaged in reels containing a specific quantity of units. The exact quantity may vary depending on the manufacturer's specifications and customer requirements.

Specifications

  • Input Voltage Range: 4.5V to 35V
  • Charging Current Range: Up to 4A
  • Maximum Float Voltage: 4.2V per cell
  • Operating Temperature Range: -40°C to 85°C
  • Control Interface: I2C-compatible serial interface

Detailed Pin Configuration

The LTC4012CUF-2#TRPBF has a total of 24 pins. Here is a detailed pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. VBAT: Battery voltage sense pin
  4. TS: Temperature sense pin
  5. ISET: Charging current set pin
  6. STAT1: Status indicator pin 1
  7. STAT2: Status indicator pin 2
  8. SDA: I2C data pin
  9. SCL: I2C clock pin
  10. INTVCC: Internal voltage reference pin
  11. VREF: Voltage reference output pin
  12. PROG: Programming pin
  13. BATFET: Battery FET control pin
  14. TIMER: Timer control pin
  15. ILIM: Input current limit sense pin
  16. VCC: Supply voltage pin
  17. VCCSENSE: Supply voltage sense pin
  18. VCCINT: Internal supply voltage pin
  19. VCCBAT: Battery voltage supply pin
  20. VCCIO: I/O supply voltage pin
  21. VCCSTAT: Status indicator supply voltage pin
  22. VCCPROG: Programming voltage supply pin
  23. VCCINT2: Additional internal supply voltage pin
  24. VCCBAT2: Additional battery voltage supply pin

Functional Features

  • High-efficiency switching charger
  • Constant-current/constant-voltage charging algorithm
  • Programmable charge current and voltage
  • Automatic recharge feature
  • Thermal regulation for safe operation
  • Battery temperature monitoring
  • Fault protection and indication

Advantages and Disadvantages

Advantages

  • Efficient charging algorithm ensures fast and safe charging of lithium-ion batteries.
  • Wide input voltage range allows compatibility with various power sources.
  • Multiple safety features protect the battery and device from overcharging, overheating, and other potential risks.
  • Compact package size enables easy integration into portable electronic devices.

Disadvantages

  • Limited to charging lithium-ion batteries only, not suitable for other battery chemistries.
  • Requires additional external components for complete battery charging system implementation.
  • Relatively high cost compared to simpler charging solutions.

Working Principles

The LTC4012CUF-2#TRPBF operates based on a constant-current/constant-voltage charging algorithm. It regulates the charging current and voltage to ensure optimal charging of lithium-ion batteries. The integrated circuit monitors the battery temperature, input voltage, and charging status to provide safe and efficient charging.

Detailed Application Field Plans

The LTC4012CUF-2#TRPBF is widely used in various portable electronic devices that rely on lithium-ion batteries for power. Some common application fields include:

  1. Smartphones and tablets
  2. Laptops and ultrabooks
  3. Portable gaming consoles
  4. Digital cameras and camcorders
  5. Portable medical devices
  6. Wearable technology

Detailed and Complete Alternative Models

  1. LTC4000: High-efficiency battery charger with wide input voltage range and advanced safety features.
  2. MCP73871: Integrated single-cell lithium-ion battery charger with programmable charge current and voltage.
  3. BQ24075: Compact and cost-effective lithium-ion battery charger with thermal regulation and fault protection.

These alternative models offer similar functionality and can be

Énumérez 10 questions et réponses courantes liées à l'application de LTC4012CUF-2#TRPBF dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of LTC4012CUF-2#TRPBF in technical solutions:

  1. Q: What is the LTC4012CUF-2#TRPBF? A: The LTC4012CUF-2#TRPBF is a high-performance standalone linear charger for single-cell lithium-ion batteries.

  2. Q: What is the input voltage range of the LTC4012CUF-2#TRPBF? A: The input voltage range is from 4.5V to 32V.

  3. Q: What is the maximum charge current supported by the LTC4012CUF-2#TRPBF? A: The LTC4012CUF-2#TRPBF supports a maximum charge current of 4A.

  4. Q: Can the LTC4012CUF-2#TRPBF charge multiple batteries simultaneously? A: No, the LTC4012CUF-2#TRPBF is designed to charge a single-cell lithium-ion battery.

  5. Q: Does the LTC4012CUF-2#TRPBF have built-in thermal protection? A: Yes, the LTC4012CUF-2#TRPBF has built-in thermal protection to prevent overheating.

  6. Q: What is the charging termination voltage of the LTC4012CUF-2#TRPBF? A: The charging termination voltage can be programmed between 3.9V and 4.45V.

  7. Q: Can the LTC4012CUF-2#TRPBF operate in a wide temperature range? A: Yes, the LTC4012CUF-2#TRPBF can operate in a temperature range of -40°C to 85°C.

  8. Q: Does the LTC4012CUF-2#TRPBF support battery temperature monitoring? A: Yes, the LTC4012CUF-2#TRPBF supports battery temperature monitoring for safe charging.

  9. Q: Can the LTC4012CUF-2#TRPBF be used in portable devices? A: Yes, the LTC4012CUF-2#TRPBF is suitable for various portable applications like smartphones, tablets, and wearables.

  10. Q: What are the key features of the LTC4012CUF-2#TRPBF? A: The key features include high efficiency, low quiescent current, programmable charge termination, thermal protection, and battery temperature monitoring.

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