LT3652HVIDD#PBF

Product Overview

Category

LT3652HVIDD#PBF 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, portable media players, and other portable electronic devices.

Characteristics

• High efficiency charging: The LT3652HVIDD#PBF offers high charging efficiency, ensuring faster and more efficient battery charging.
• Wide input voltage range: It can accept a wide range of input voltages, making it suitable for use with different power sources.
• Multiple charging modes: This IC supports multiple charging modes, including constant current (CC) and constant voltage (CV) modes, allowing for flexible charging options.
• Thermal regulation: The LT3652HVIDD#PBF incorporates thermal regulation features to prevent overheating during the charging process.
• Safety features: It includes built-in safety features such as overvoltage protection, overcurrent protection, and reverse polarity protection to ensure safe and reliable charging.

Package and Quantity

The LT3652HVIDD#PBF is available in a compact and industry-standard 16-pin TSSOP package. It is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4.95V to 32V
• Charging Current Range: Up to 2A
• Charging Voltage Range: 4.1V to 8.4V
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 94%
• Quiescent Current: 50µA

Pin Configuration

The LT3652HVIDD#PBF has a total of 16 pins. Here is the detailed pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VFB: Feedback voltage pin
4. ISET: Current set pin
5. STAT: Status indicator pin
6. SS: Soft-start pin
7. EN: Enable pin
8. PGND: Power ground pin
9. BAT: Battery connection pin
10. TS: Temperature sense pin
11. PROG: Programming pin
12. ILIM: Current limit pin
13. VOUT: Output voltage pin
14. FB: Feedback pin
15. COMP: Compensation pin
16. LX: Switching node pin

Functional Features

• Constant current (CC) and constant voltage (CV) charging modes
• Programmable charge current and voltage
• Thermal regulation for temperature control
• Automatic recharge feature
• Charge termination based on battery voltage and current thresholds
• Fault detection and protection features

Advantages and Disadvantages

Advantages

• High charging efficiency ensures faster charging times.
• Wide input voltage range allows compatibility with various power sources.
• Multiple charging modes provide flexibility in charging options.
• Built-in safety features ensure safe and reliable charging.
• Compact package size enables space-saving designs.

Disadvantages

• Limited to lithium-ion battery charging applications.
• Requires careful consideration of thermal management due to high efficiency.

Working Principles

The LT3652HVIDD#PBF operates as a switch-mode battery charger. It utilizes a combination of constant current and constant voltage charging modes to efficiently charge lithium-ion batteries. The IC regulates the charging current and voltage based on the feedback received from the battery and other external components. It also incorporates thermal regulation to prevent overheating during the charging process.

Detailed Application Field Plans

The LT3652HVIDD#PBF is widely used in various portable electronic devices that require lithium-ion battery charging capabilities. Some common application fields include:

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

Detailed and Complete Alternative Models

1. LT3652IDD#PBF: Similar to LT3652HVIDD#PBF, but with a different package option (12-pin DFN).
2. LTC4000-1: A high-power battery charger IC suitable for charging multiple lithium-ion cells in series.
3. MCP73871: A compact and cost-effective battery charger IC designed for single-cell lithium-ion batteries.

These alternative models offer similar functionality and can be considered as alternatives to the LT3652HVIDD#PBF depending on specific design requirements.

In conclusion, the LT3652HVIDD#PBF is an integrated circuit specifically designed for efficient lithium-ion battery charging in various portable electronic devices. Its high efficiency, wide input voltage range, and built-in safety features make it a popular choice among designers. With its compact package and versatile functionality, it is widely used in