LTC4015IUHF#TRPBF

Product Overview

Category

LTC4015IUHF#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 in various electronic devices such as smartphones, tablets, laptops, and portable power banks.

Characteristics

• High efficiency: The LTC4015IUHF#TRPBF offers high charging efficiency, ensuring maximum power transfer to the battery.
• Wide input voltage range: It can accept a wide range of input voltages, making it suitable for use with different power sources.
• Fast charging capability: This IC supports fast charging protocols, enabling quick charging of batteries.
• Advanced safety features: It incorporates multiple safety mechanisms to protect the battery from overcharging, overvoltage, and overheating.

Package

LTC4015IUHF#TRPBF is available in a compact and industry-standard 38-lead QFN (Quad Flat No-leads) package.

Essence

The essence of LTC4015IUHF#TRPBF lies in its ability to efficiently charge lithium-ion batteries while providing advanced safety features.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 35V
• Charging Current Range: Up to 4A
• Maximum Charging Voltage: 4.2V per cell
• Operating Temperature Range: -40°C to 125°C
• Control Interface: I2C-compatible

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. VBAT: Battery voltage pin
4. TS: Temperature sense pin
5. PROG: Programming pin
6. SDA: I2C data pin
7. SCL: I2C clock pin
8. STAT: Status output pin
9. INTVCC: Internal voltage reference pin
10. VREF: Reference voltage output pin
11. BAT: Battery temperature sense pin
12. ILIM: Current limit programming pin
13. CHRG: Charging status indicator pin
14. FLT: Fault indicator pin
15. TIMER: Timer control pin
16. VOUT: Output voltage pin

Functional Features

• Constant current/constant voltage charging
• Programmable charging current and voltage limits
• Temperature-compensated charging
• Automatic recharge feature
• Charge termination based on various criteria (voltage, current, time)
• Battery temperature monitoring and protection
• Fault detection and reporting

Advantages and Disadvantages

Advantages

• High charging efficiency leads to reduced charging times.
• Wide input voltage range allows compatibility with different power sources.
• Advanced safety features protect the battery from damage.
• Programmable charging parameters offer flexibility for various battery types.

Disadvantages

• Requires additional external components for a complete charging solution.
• Limited to lithium-ion battery charging applications.

Working Principles

LTC4015IUHF#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 IC continuously monitors the battery's voltage, current, and temperature to prevent overcharging, overvoltage, and overheating. It terminates the charging process when the battery reaches its full capacity or if any fault condition is detected.

Detailed Application Field Plans

LTC4015IUHF#TRPBF finds extensive application in various portable electronic devices, including: - Smartphones and tablets - Laptops and ultrabooks - Portable power banks - Wearable devices - Digital cameras and camcorders - Portable gaming consoles

Detailed and Complete Alternative Models

1. LTC4000: A similar IC with a higher charging current capability.
2. LTC4010: Offers additional features such as battery balancing and fuel gauge functionality.
3. MCP73871: An alternative IC from Microchip Technology with comparable specifications.

These alternative models provide similar functionality and can be considered as substitutes for LTC4015IUHF#TRPBF in specific applications.

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