LTC4155EUFD#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Charger
• Characteristics: High Efficiency, Precision Current and Voltage Regulation
• Package: 16-Lead QFN (Quad Flat No-Lead)
• Essence: Power Management IC for Battery Charging Applications
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.95V to 32V
• Charge Current Range: Up to 2A
• Programmable Charge Voltage: 3.5V to 20V
• Maximum System Load Current: 2.5A
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 94%
• Battery Float Voltage Accuracy: ±0.5%
• Battery Charge Current Accuracy: ±5%
• Battery Charge Voltage Accuracy: ±0.5%

Detailed Pin Configuration

1. VIN: Input Voltage
2. GND: Ground
3. ISET: Charge Current Programming
4. PROG: Charge Voltage Programming
5. TS: Thermal Shutdown
6. STAT: Status Output
7. INTVCC: Internal Voltage Regulator Output
8. VBAT: Battery Voltage Sense
9. ILIM: System Load Current Limit
10. PGND: Power Ground
11. BAT: Battery Connection
12. VOUT: Output Voltage
13. SDA: I2C Data Line
14. SCL: I2C Clock Line
15. FLT: Fault Indicator
16. NC: No Connect

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• Precision current and voltage regulation ensures accurate charging of batteries.
• Integrated thermal shutdown protects the device from overheating.
• I2C interface enables communication with external microcontrollers.
• Fault indicator provides visual indication of any system faults.

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption. - Precision regulation ensures optimal battery charging. - Integrated thermal shutdown protects the device from damage. - I2C interface allows for advanced control and monitoring capabilities.

Disadvantages: - Limited charge current range may not be suitable for high-power applications. - Requires external microcontroller for full functionality.

Working Principles

The LTC4155EUFD#TRPBF is a power management IC designed for battery charging applications. It operates by regulating the input voltage and current to charge the connected battery with precision. The device incorporates a thermal shutdown feature to prevent overheating and damage. It also includes an I2C interface for communication with external microcontrollers, enabling advanced control and monitoring of the charging process.

Detailed Application Field Plans

The LTC4155EUFD#TRPBF is widely used in various battery-powered systems, including:

1. Portable Electronics: It can be employed in smartphones, tablets, and portable gaming devices to efficiently charge their batteries.
2. Wearable Devices: The IC is suitable for wearable technology such as smartwatches and fitness trackers, ensuring reliable and accurate battery charging.
3. IoT Devices: It finds application in Internet of Things (IoT) devices like sensors, smart home devices, and wireless modules, providing efficient power management.
4. Automotive Systems: The LTC4155EUFD#TRPBF can be utilized in electric vehicles and hybrid cars for charging their battery packs effectively.
5. Industrial Equipment: It is suitable for powering and charging batteries in industrial equipment, such as handheld tools and measurement devices.

Detailed and Complete Alternative Models

1. LTC4150: Similar power management IC with lower charge current capability.
2. LTC4156: Offers higher charge current capability and additional features like USB On-The-Go (OTG) support.
3. LTC4157: Designed specifically for solar-powered applications, providing efficient charging from solar panels.

These alternative models offer different specifications and features to cater to various application requirements.

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