LT3650EMSE-4.2#TRPBF

Product Overview

Category

LT3650EMSE-4.2#TRPBF belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for battery charging applications, providing a reliable and efficient solution for charging lithium-ion batteries.

Characteristics

• Input Voltage Range: 4V to 8V
• Output Voltage: 4.2V
• Charging Current: Up to 2A
• Package Type: MSOP-10E
• Operating Temperature Range: -40°C to 85°C

Package and Quantity

The LT3650EMSE-4.2#TRPBF is available in an MSOP-10E package. It is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 4V to 8V
• Output Voltage: 4.2V ±1%
• Maximum Charging Current: 2A
• Charge Termination Current: 10% of the programmed charge current
• Precharge Current: 10% of the programmed charge current
• Battery Float Voltage: 4.1V ±1%
• Operating Temperature Range: -40°C to 85°C
• Shutdown Current: <1µA
• Quiescent Current: 100µA

Pin Configuration

The LT3650EMSE-4.2#TRPBF has the following pin configuration:

Pin 1: VCC Pin 2: GND Pin 3: PROG Pin 4: STAT Pin 5: BAT Pin 6: FB Pin 7: ISET Pin 8: ILIM Pin 9: SS Pin 10: VIN

Functional Features

• Constant-current/constant-voltage charging
• Programmable charge current and termination current
• Automatic recharge
• Battery temperature monitoring
• Charge status indication through STAT pin
• Soft-start feature to limit inrush current
• Thermal shutdown protection

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications
• High charging current capability enables faster charging times
• Programmable charge current and termination current offer flexibility
• Battery temperature monitoring ensures safe charging
• Automatic recharge feature enhances user convenience

Disadvantages

• Limited output voltage options (only 4.2V)
• Relatively high quiescent current compared to some alternative models

Working Principles

The LT3650EMSE-4.2#TRPBF operates on the principle of constant-current/constant-voltage charging. It regulates the charging current to a programmed value until the battery voltage reaches the programmed float voltage. At this point, it switches to a constant-voltage mode, maintaining the battery voltage at the float voltage level while reducing the charging current.

The device continuously monitors the battery temperature to ensure safe charging. It also provides various protection features such as thermal shutdown and overvoltage protection.

Detailed Application Field Plans

The LT3650EMSE-4.2#TRPBF is commonly used in portable electronic devices that require lithium-ion battery charging, including smartphones, tablets, digital cameras, and portable gaming consoles. It can also be utilized in power banks and other battery-powered systems.

Detailed and Complete Alternative Models

1. LTC4054-4.2
2. MCP73831-4.2
3. MAX1555
4. BQ24075RGTT
5. TPS61085DGKR

These alternative models offer similar functionality and can be considered as substitutes for the LT3650EMSE-4.2#TRPBF in battery charging applications.

In conclusion, the LT3650EMSE-4.2#TRPBF is a power management IC designed for lithium-ion battery charging. With its programmable features, wide input voltage range, and various protection mechanisms, it provides an efficient and reliable solution for charging applications in portable electronic devices.