LTC4006EGN-6#TRPBF

Product Overview

Category

LTC4006EGN-6#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 LTC4006EGN-6#TRPBF offers high charging efficiency, ensuring maximum power transfer to the battery.
• Fast charging: It supports fast charging protocols, allowing for quick replenishment of battery capacity.
• Safety features: The IC incorporates multiple safety mechanisms to prevent overcharging, overcurrent, and overheating, ensuring safe and reliable battery charging.
• Compact package: The LTC4006EGN-6#TRPBF comes in a small form factor package, making it suitable for space-constrained applications.
• Low standby power consumption: It consumes minimal power when not actively charging, optimizing energy efficiency.

Package and Quantity

The LTC4006EGN-6#TRPBF is available in a 16-pin SSOP (Shrink Small Outline Package) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Input Voltage Range: 4.5V - 32V
• Charging Current Range: Up to 3A
• Charging Voltage: Programmable from 2.5V to 4.2V
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 95%
• Standby Power Consumption: Less than 10µA

Pin Configuration

The LTC4006EGN-6#TRPBF features a 16-pin SSOP package with the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. VCC: Supply voltage for internal circuitry
4. PROG: Charging current programming pin
5. STAT: Charging status indicator output
6. FLT: Fault indicator output
7. BAT: Battery connection
8. TS: Temperature sense input
9. ISET: Current limit setting pin
10. ILIM: Input current limit programming pin
11. NTC: Negative temperature coefficient thermistor input
12. SCL: I2C serial clock input
13. SDA: I2C serial data input/output
14. INTVCC: Internal supply voltage for I2C interface
15. NC: No connection
16. NC: No connection

Functional Features

• Constant current/constant voltage (CC/CV) charging algorithm
• Programmable charging current and voltage
• Automatic recharge feature after battery discharge
• Thermal regulation to prevent overheating
• Charge termination based on battery voltage and current thresholds
• I2C interface for advanced control and monitoring capabilities

Advantages and Disadvantages

Advantages

• High charging efficiency ensures optimal use of power.
• Fast charging capability reduces charging time.
• Multiple safety features protect the battery and device from damage.
• Compact package allows for easy integration into various applications.
• Low standby power consumption minimizes energy waste.

Disadvantages

• Limited to lithium-ion battery charging applications.
• Requires additional external components for complete charging system implementation.
• Advanced control and monitoring features may require expertise in I2C communication.

Working Principles

The LTC4006EGN-6#TRPBF operates based on a CC/CV charging algorithm commonly used for lithium-ion batteries. It starts by delivering a constant current to the battery until it reaches a predefined voltage threshold. At this point, the charger switches to a constant voltage mode, maintaining the battery voltage at the desired level while gradually reducing the charging current. Once the charging current drops below a specified threshold, the charger terminates the charging process.

The IC continuously monitors battery voltage, current, and temperature to ensure safe and efficient charging. It incorporates various protection mechanisms to prevent overcharging, overcurrent, and overheating, safeguarding both the battery and the device.

Detailed Application Field Plans

The LTC4006EGN-6#TRPBF finds applications in a wide range of portable electronic devices that utilize lithium-ion batteries. Some specific application fields include:

1. Smartphones and tablets
2. Laptops and ultrabooks
3. Portable power banks
4. Wearable devices (smartwatches, fitness trackers)
5. Portable medical devices
6. Handheld gaming consoles
7. Digital cameras and camcorders
8. Electric vehicles (for battery management systems)

Detailed and Complete Alternative Models

1. LTC4006EGN-4.2#TRPBF: Similar to LTC4006EGN-6#TRPBF but with a fixed charging voltage of 4.2V.
2. LTC4006EGN-5