LTC4162EUFD-FFSM#TRPBF

Product Overview

Category

The LTC4162EUFD-FFSM#TRPBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is primarily used for battery charging and power delivery in various electronic devices, such as smartphones, tablets, portable gaming consoles, and other portable consumer electronics.

Characteristics

• High efficiency: The LTC4162EUFD-FFSM#TRPBF is known for its high charging efficiency, ensuring optimal use of power and reducing energy waste.
• Fast charging capability: It supports fast charging protocols, enabling quick and efficient charging of batteries.
• Wide input voltage range: This IC can handle a wide range of input voltages, making it suitable for different power sources.
• Advanced protection features: The LTC4162EUFD-FFSM#TRPBF incorporates various protection mechanisms, including overvoltage protection, overcurrent protection, and thermal shutdown, ensuring safe operation and preventing damage to the device and battery.

Package and Quantity

The LTC4162EUFD-FFSM#TRPBF is available in a small form factor package, specifically the 24-pin QFN (Quad Flat No-Lead) package. It is typically sold in reels or trays, with a standard quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4V to 38V
• Charging Current Range: Up to 3A
• Output Voltage Range: Programmable from 2.5V to 14.4V
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 85°C
• Control Interface: I2C-compatible

Pin Configuration

The LTC4162EUFD-FFSM#TRPBF has a total of 24 pins, each serving a specific function. The pin configuration is as follows:

1. VIN: Input voltage pin
2. VOUT: Output voltage pin
3. GND: Ground reference pin
4. SDA: I2C data line
5. SCL: I2C clock line
6. BAT: Battery connection pin
7. PROG: Programming pin for setting charging parameters
8. FLT: Fault indicator pin
9. STAT: Status indicator pin
10. EN: Enable pin for device control
11. TS: Temperature sense pin
12. ILIM: Current limit programming pin
13. INTVCC: Internal voltage supply pin
14. VREF: Reference voltage output pin
15. COMP: Compensation pin for loop stability
16. FB: Feedback pin for voltage regulation
17. PGND: Power ground pin
18. BST: Boost converter input pin
19. SW: Switching node pin
20. SS: Soft-start pin
21. PGOOD: Power good indicator pin
22. ADIN: Analog input pin
23. NC: No connect pin
24. NC: No connect pin

Functional Features

The LTC4162EUFD-FFSM#TRPBF offers several functional features that enhance its performance and usability:

1. Battery Charging: It provides a comprehensive charging algorithm that supports various battery chemistries, including lithium-ion, lithium-polymer, and lead-acid batteries.
2. Power Path Management: The IC allows simultaneous charging of the battery while powering the load, ensuring uninterrupted operation of the device.
3. Dynamic Power Management: It dynamically adjusts the power delivery based on the load requirements, optimizing efficiency and extending battery life.
4. I2C Interface: The LTC4162EUFD-FFSM#TRPBF can be controlled and monitored through an I2C interface, enabling easy integration into existing systems and providing real-time status information.
5. Fault Protection: It incorporates multiple protection mechanisms, such as overvoltage, overcurrent, and thermal shutdown, ensuring safe operation and preventing damage to the device and battery.

Advantages and Disadvantages

Advantages

• High charging efficiency leads to reduced energy waste.
• Fast charging capability enables quick battery replenishment.
• Wide input voltage range allows compatibility with various power sources.
• Advanced protection features ensure safe operation.
• I2C interface provides easy control and monitoring.

Disadvantages

• Limited availability in small quantities for prototyping purposes.
• Requires knowledge of power management principles for optimal usage.

Working Principles

The LTC4162EUFD-FFSM#TRPBF operates based on a switching regulator architecture combined with advanced charging algorithms. It utilizes a high-frequency switching converter to efficiently regulate the output voltage and current. The integrated charging algorithm dynamically adjusts the charging parameters based on the battery type and condition, ensuring optimal charging performance while protecting the battery from overcharging or undercharging.

The IC also incorporates power path management, allowing it to simultaneously charge the battery and power