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LTC4162IUFD-FST#PBF
Product Overview
Category
The LTC4162IUFD-FST#PBF belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.
Use
This product is primarily used for charging and managing lithium-ion batteries in various electronic devices such as smartphones, tablets, portable media players, and other portable electronic devices.
Characteristics
- High efficiency: The LTC4162IUFD-FST#PBF offers high charging efficiency, ensuring maximum power transfer from the power source to the battery.
- Fast charging: This IC supports fast charging protocols, allowing for quick and efficient battery charging.
- Advanced protection features: It incorporates various protection mechanisms like overvoltage protection, overcurrent protection, and thermal shutdown, ensuring safe and reliable battery charging.
- Wide input voltage range: The LTC4162IUFD-FST#PBF can accept a wide range of input voltages, making it suitable for different power sources.
Package and Quantity
The LTC4162IUFD-FST#PBF is available in a small form factor package, typically a 32-pin QFN (Quad Flat No-Lead) package. It is supplied in tape and reel packaging, with a standard quantity of 250 units per reel.
Specifications
- Input Voltage Range: 4.5V to 35V
- Charging Current Range: Up to 3A
- Battery Voltage Range: 2.5V to 4.5V
- Operating Temperature Range: -40°C to 85°C
- Efficiency: Up to 95%
- Charging Modes: Constant Current/Constant Voltage (CC/CV)
- Communication Interface: I2C
Pin Configuration
The LTC4162IUFD-FST#PBF has a total of 32 pins. Below is the detailed pin configuration:
- VIN: Input voltage pin
- GND: Ground pin
- VBAT: Battery voltage pin
- ISET: Charging current set pin
- PROG: Programming pin
- TS: Temperature sense pin
- INTVCC: Internal voltage supply pin
- SDA: I2C data pin
- SCL: I2C clock pin
- STAT: Status output pin
- FLT: Fault output pin
- EN: Enable pin
- BATTEMP: Battery temperature sense pin
- VOUT: Output voltage pin
- PGND: Power ground pin
- ILIM: Input current limit pin
- VREF: Reference voltage pin
- COMP: Compensation pin
- FB: Feedback pin
- SS: Soft-start pin
- BST: Boost pin
- SW: Switching node pin
- LX: Inductor connection pin
- CBOOT: Bootstrap capacitor pin
- VCC: Supply voltage pin
- VCC1: Supply voltage pin
- VCC2: Supply voltage pin
- VCC3: Supply voltage pin
- VCC4: Supply voltage pin
- VCC5: Supply voltage pin
- VCC6: Supply voltage pin
- VCC7: Supply voltage pin
Functional Features
- Constant Current/Constant Voltage (CC/CV) charging mode for optimal battery charging.
- Programmable charging current and voltage limits to accommodate different battery types and capacities.
- Integrated power path management allows simultaneous charging and system operation.
- Advanced thermal management ensures safe operation by monitoring and controlling the IC's temperature.
- I2C communication interface enables configuration and monitoring of charging parameters.
Advantages and Disadvantages
Advantages
- High charging efficiency ensures maximum power transfer.
- Fast charging capability reduces charging time.
- Advanced protection features ensure safe and reliable battery charging.
- Wide input voltage range allows compatibility with various power sources.
Disadvantages
- Limited to lithium-ion battery charging applications.
- Requires additional external components for a complete charging solution.
Working Principles
The LTC4162IUFD-FST#PBF operates based on the principle of constant current/constant voltage (CC/CV) charging. In the CC phase, it delivers a constant charging current to the battery until the battery voltage reaches a predetermined threshold. Then, it switches to the CV phase, where it maintains a constant voltage across the battery terminals while reducing the charging current gradually. This approach ensures efficient and controlled charging, preventing overcharging and damage to the battery.
Detailed Application Field Plans
The LTC4162IUFD-FST#PBF is widely used in various portable electronic devices that require lithium-ion battery charging capabilities. Some common application fields include:
- Smartphones and Tablets: Enables fast and efficient charging of the built-in lithium-ion batteries in smartphones and tablets.
- Portable Media Players: Provides a reliable
Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng LTC4162IUFD-FST#PBF trong giải pháp kỹ thuật
Sure! Here are 10 common questions and answers related to the application of LTC4162IUFD-FST#PBF in technical solutions:
Q: What is the LTC4162IUFD-FST#PBF? A: The LTC4162IUFD-FST#PBF is a high-efficiency, multi-chemistry battery charger controller with PowerPath™ instant-on operation.
Q: What types of batteries can be charged using LTC4162IUFD-FST#PBF? A: The LTC4162IUFD-FST#PBF can charge a wide range of battery chemistries, including Li-Ion, LiFePO4, and lead-acid batteries.
Q: What is PowerPath™ instant-on operation? A: PowerPath™ instant-on operation allows the system to power up instantly from an input source, even if the battery is deeply discharged or missing.
Q: Can the LTC4162IUFD-FST#PBF charge multiple batteries simultaneously? A: Yes, the LTC4162IUFD-FST#PBF supports charging multiple batteries in series or parallel configurations.
Q: Does the LTC4162IUFD-FST#PBF have built-in protection features? A: Yes, the LTC4162IUFD-FST#PBF includes various protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.
Q: What is the maximum charging current supported by LTC4162IUFD-FST#PBF? A: The LTC4162IUFD-FST#PBF can support charging currents up to 3A.
Q: Can the LTC4162IUFD-FST#PBF operate in a wide input voltage range? A: Yes, the LTC4162IUFD-FST#PBF can operate with input voltages ranging from 4.5V to 35V.
Q: Does the LTC4162IUFD-FST#PBF have a programmable charging profile? A: Yes, the LTC4162IUFD-FST#PBF allows for flexible programming of charging profiles through its I2C interface.
Q: Is the LTC4162IUFD-FST#PBF suitable for automotive applications? A: Yes, the LTC4162IUFD-FST#PBF is designed to meet the stringent requirements of automotive applications.
Q: Are evaluation boards available for the LTC4162IUFD-FST#PBF? A: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and reference designs for the LTC4162IUFD-FST#PBF to facilitate easy prototyping and testing.
Please note that the answers provided here are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and application notes for detailed information.