LTC4160EUDC

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Charger
• Characteristics: High Efficiency, Wide Input Voltage Range, Programmable Charging Parameters
• Package: 16-Lead QFN (Quad Flat No-Lead)
• Essence: LTC4160EUDC is a versatile battery charger IC designed for various applications.
• Packaging/Quantity: Available in tape and reel packaging with 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 35V
• Charge Current Range: Up to 3A
• Termination Current: Programmable from 1% to 10% of the charge current
• Float Voltage Accuracy: ±0.5%
• Battery Recharge Threshold: Programmable from 2.5V to 4.1V
• Temperature Monitoring: Internal temperature sensor or external thermistor
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC4160EUDC has a 16-lead QFN package with the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. PROG: Programming pin for setting charging parameters
4. TS: Temperature sense input
5. ISET: Charge current programming pin
6. BAT: Battery connection
7. STAT: Status output pin
8. INTVCC: Internal voltage regulator output
9. SDA: I2C data input/output
10. SCL: I2C clock input
11. CE: Chip enable pin
12. ILIM: Input current limit programming pin
13. VIN: Input voltage pin
14. NTC: Negative temperature coefficient input
15. NC: No connection
16. NC: No connection

Functional Features

• Programmable charging parameters for various battery chemistries
• Wide input voltage range allows operation from a variety of power sources
• High efficiency charging with maximum power point tracking (MPPT)
• Integrated temperature monitoring for safe charging
• I2C interface for communication and control
• Fault protection features such as overvoltage, overcurrent, and thermal shutdown

Advantages and Disadvantages

Advantages

• Versatile charger suitable for a wide range of applications
• Efficient charging with MPPT technology
• Programmable charging parameters for flexibility
• Integrated temperature monitoring ensures safe charging
• I2C interface allows for easy control and monitoring

Disadvantages

• Requires external components for complete battery charging solution
• Limited to 16-lead QFN package option

Working Principles

The LTC4160EUDC is a battery charger IC that utilizes MPPT technology to maximize the power transfer from the input source to the battery. It supports various battery chemistries and provides programmable charging parameters to accommodate different requirements.

The IC continuously monitors the input voltage and adjusts the charging current to maintain the maximum power point. It also incorporates temperature monitoring to prevent overheating during charging.

The I2C interface enables communication with the IC for configuration, status monitoring, and fault detection. The LTC4160EUDC includes built-in fault protection features to safeguard against overvoltage, overcurrent, and thermal issues.

Application Field Plans

The LTC4160EUDC can be used in a wide range of applications, including:

1. Portable electronic devices
2. Solar-powered systems
3. Electric vehicles
4. Industrial equipment
5. Medical devices

Its versatility and programmability make it suitable for various battery charging scenarios.

Alternative Models

Here are some alternative models that offer similar functionality:

1. MAX8903A from Maxim Integrated
2. BQ24650 from Texas Instruments
3. MCP73871 from Microchip Technology
4. LT3652 from Analog Devices

These alternatives provide different package options and may have slightly different specifications, but they serve the same purpose of battery charging.

In conclusion, the LTC4160EUDC is a highly versatile battery charger IC with programmable charging parameters, high efficiency, and wide input voltage range. It offers various functional features and can be used in diverse applications. While it has some limitations, it provides an effective solution for battery charging needs.