LTC4085EDE-4#PBF

Product Overview

Category

The LTC4085EDE-4#PBF belongs to the category of integrated circuits (ICs).

Use

This IC is primarily used for battery charging applications.

Characteristics

The LTC4085EDE-4#PBF is known for its high efficiency and versatility in charging various types of batteries. It offers a wide input voltage range and supports multiple charging modes, making it suitable for a range of portable electronic devices.

Package

The LTC4085EDE-4#PBF comes in a small 12-pin DFN package, which allows for compact designs and easy integration into electronic systems.

Essence

The essence of the LTC4085EDE-4#PBF lies in its ability to efficiently charge batteries while providing protection against overvoltage, overcurrent, and overheating.

Packaging/Quantity

This product is typically sold in reels or tubes, with each reel or tube containing a specific quantity of LTC4085EDE-4#PBF ICs.

Specifications

The LTC4085EDE-4#PBF has the following specifications:

• Input Voltage Range: 2.7V to 5.5V
• Charging Current: Up to 1A
• Charging Modes: Constant Current/Constant Voltage (CC/CV)
• Battery Types Supported: Li-Ion, Li-Polymer, LiFePO4
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC4085EDE-4#PBF features a 12-pin DFN package with the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. PROG: Charge Current Programming Pin
4. STAT: Status Output Pin
5. CE: Enable Pin
6. TS: Temperature Sense Input
7. VBAT: Battery Voltage Output
8. ISET: Charge Current Set Pin
9. ILIM: Input Current Limit Programming Pin
10. VOUT: Output Voltage
11. SCL: I2C Serial Clock Input
12. SDA: I2C Serial Data Input/Output

Functional Features

The LTC4085EDE-4#PBF offers the following functional features:

1. High Efficiency Charging: The IC provides efficient charging for various battery types, ensuring optimal power transfer and minimizing energy loss.

2. Multiple Charging Modes: It supports both constant current and constant voltage charging modes, allowing for flexible charging profiles based on battery requirements.

3. Integrated Protection: The LTC4085EDE-4#PBF incorporates built-in protection mechanisms to safeguard against overvoltage, overcurrent, and overheating, ensuring safe and reliable charging.

4. Programmable Charge Current: The charge current can be easily programmed using the PROG pin, providing flexibility in charging different battery capacities.

Advantages and Disadvantages

Advantages

• High efficiency charging
• Versatile compatibility with various battery types
• Compact package size for space-constrained designs
• Integrated protection features ensure safe charging

Disadvantages

• Limited charging current capacity (up to 1A)
• Requires external components for complete charging system implementation

Working Principles

The LTC4085EDE-4#PBF operates by regulating the charging current and voltage according to the selected charging mode. It monitors the battery voltage and adjusts the charging parameters accordingly to ensure optimal charging performance while protecting the battery from potential damage.

Detailed Application Field Plans

The LTC4085EDE-4#PBF finds applications in a wide range of portable electronic devices, including but not limited to:

1. Smartphones and tablets
2. Wearable devices
3. Portable medical devices
4. Wireless headphones and earbuds
5. GPS navigation systems
6. Portable gaming consoles

Detailed and Complete Alternative Models

1. LTC4085EDE-2#PBF: Similar to LTC4085EDE-4#PBF, but with a different charging current capacity (up to 2A).
2. LTC4085EDE-1#PBF: Similar to LTC4085EDE-4#PBF, but with a different charging current capacity (up to 500mA).
3. LTC4085EDE-3#PBF: Similar to LTC4085EDE-4#PBF, but with a different charging current capacity (up to 3A).

These alternative models offer varying charging current capacities to cater to different application requirements.

In conclusion, the LTC4085EDE-4#PBF is a versatile integrated circuit designed for efficient battery charging in portable electronic devices. With its compact package, integrated protection features, and compatibility with various battery types, it offers a reliable solution for charging applications.