LTC4065LXEDC#TRMPBF

Product Overview

Category

The LTC4065LXEDC#TRMPBF belongs to the category of integrated circuits (ICs) and specifically falls under the battery charger ICs.

Use

This product is primarily used for charging lithium-ion batteries. It provides a reliable and efficient charging solution for various applications such as portable electronics, medical devices, and industrial equipment.

Characteristics

• High charging efficiency
• Wide input voltage range
• Fast charging capability
• Overvoltage protection
• Thermal regulation
• Low quiescent current

Package

The LTC4065LXEDC#TRMPBF comes in a small 12-pin DFN (Dual Flat No-Lead) package. This package offers excellent thermal performance and compact size, making it suitable for space-constrained designs.

Essence

The essence of the LTC4065LXEDC#TRMPBF lies in its ability to provide a complete charging solution for lithium-ion batteries with high efficiency and advanced safety features.

Packaging/Quantity

This product is typically available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.35V - 6V
• Charging Current: Up to 1A
• Charge Termination Voltage: 4.2V ± 1%
• Preconditioning Current: 10% of programmed charge current
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 50µA (typical)

Detailed Pin Configuration

1. VBAT: Battery Voltage Input
2. PROG: Charge Current Programming Pin
3. STAT: Status Output Pin
4. TS: Thermistor Input Pin
5. GND: Ground
6. ISET: Input Current Limit Programming Pin
7. CE: Charger Enable Pin
8. VCC: Supply Voltage Input
9. NTC: Negative Temperature Coefficient Input
10. BAT: Battery Connection
11. VOUT: Regulated Output Voltage
12. PGND: Power Ground

Functional Features

• Constant-current/constant-voltage charging
• Automatic recharge
• Charge termination based on voltage and current thresholds
• Thermal regulation to prevent overheating
• Reverse battery protection
• LED status indication
• Programmable charge current

Advantages and Disadvantages

Advantages

• High charging efficiency ensures faster charging times.
• Wide input voltage range allows compatibility with various power sources.
• Advanced safety features protect the battery from overcharging and overheating.
• Compact package size enables space-saving designs.
• LED status indication provides visual feedback on the charging process.

Disadvantages

• Limited maximum charging current of 1A may not be suitable for high-capacity batteries.
• Lack of built-in USB interface for direct device connection.

Working Principles

The LTC4065LXEDC#TRMPBF operates based on a constant-current/constant-voltage charging algorithm. It starts by delivering a constant current to the battery until the programmed charge termination voltage is reached. At this point, the charger switches to a constant-voltage mode, maintaining the battery voltage at the termination level while reducing the charging current. The charger continuously monitors the battery voltage and current to ensure safe and efficient charging.

Detailed Application Field Plans

The LTC4065LXEDC#TRMPBF finds applications in various fields, including:

1. Portable Electronics: Smartphones, tablets, portable gaming devices.
2. Medical Devices: Portable medical equipment, wearable health monitors.
3. Industrial Equipment: Handheld measurement tools, wireless sensors.

Detailed and Complete Alternative Models

1. MCP73831: Similar battery charger IC with a lower charging current capability.
2. BQ24075: Battery charger IC with integrated USB interface for direct device connection.
3. MAX1555: Compact battery charger IC with thermal regulation and reverse battery protection.

These alternative models offer similar functionality to the LTC4065LXEDC#TRMPBF and can be considered based on specific application requirements.

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