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LTC4098EPDC
Product Overview
Category
LTC4098EPDC belongs to the category of power management integrated circuits (PMICs).
Use
It is primarily used for managing and charging lithium-ion/polymer batteries in portable electronic devices.
Characteristics
- High efficiency power path management
- Integrated battery charger with thermal regulation
- Wide input voltage range
- Programmable charge current
- Automatic recharge
- Low battery disconnect
- Overvoltage protection
- Undervoltage lockout
- Small package size
Package
LTC4098EPDC is available in a small 12-pin DFN (Dual Flat No-Lead) package.
Essence
The essence of LTC4098EPDC lies in its ability to efficiently manage and charge lithium-ion/polymer batteries, ensuring optimal performance and safety.
Packaging/Quantity
The product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.
Specifications
- Input Voltage Range: 2.7V to 5.5V
- Charge Current Range: Up to 1.2A
- Battery Float Voltage: 4.2V
- Battery Regulation Voltage: 4.1V
- Operating Temperature Range: -40°C to 85°C
Detailed Pin Configuration
- VIN: Input voltage pin
- GND: Ground pin
- PROG: Charge current programming pin
- STAT: Status output pin
- BAT: Battery voltage sense pin
- TS: Thermal shutdown pin
- EN: Enable pin
- VOUT: Output voltage pin
- ISET: Output current limit programming pin
- PGND: Power ground pin
- ILIM: Input current limit programming pin
- FLT: Fault indicator pin
Functional Features
- Power path management: Allows the device to power the load directly from the input source while simultaneously charging the battery.
- Thermal regulation: Prevents overheating during charging by adjusting the charge current based on the junction temperature.
- Programmable charge current: Provides flexibility in setting the desired charge current for different battery capacities.
- Automatic recharge: Initiates a new charging cycle when the battery voltage drops below a certain threshold.
- Low battery disconnect: Protects the battery from deep discharge by disconnecting it from the load when the voltage falls below a specified level.
- Overvoltage protection: Safeguards the battery and load from excessive voltage levels.
- Undervoltage lockout: Prevents operation when the input voltage is below a certain threshold.
Advantages
- High efficiency power management
- Compact package size
- Wide input voltage range
- Programmable charge current for flexibility
- Integrated thermal regulation for safe charging
- Protection features ensure battery and load safety
Disadvantages
- Limited to lithium-ion/polymer battery charging applications
- Not suitable for other battery chemistries
Working Principles
LTC4098EPDC operates by managing the power flow between the input source, load, and battery. It utilizes a power path controller to allow the load to be powered directly from the input source while simultaneously charging the battery. The charge current is regulated based on the junction temperature to prevent overheating. The device also incorporates various protection mechanisms to ensure safe operation and prevent damage to the battery and load.
Detailed Application Field Plans
LTC4098EPDC finds extensive application in portable electronic devices such as smartphones, tablets, digital cameras, and portable media players. It is particularly useful in scenarios where efficient battery charging and power management are crucial.
Detailed and Complete Alternative Models
- LTC4162-L: Similar functionality with additional power path control options.
- MAX1555: Basic battery charger with integrated power path management.
- BQ24075: Integrated single-cell Li-Ion battery charger with power path management.
These alternative models offer similar features and can be considered based on specific application requirements.
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기술 솔루션에 LTC4098EPDC 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of LTC4098EPDC in technical solutions:
Q: What is LTC4098EPDC? A: LTC4098EPDC is a high-efficiency power manager IC designed for energy harvesting applications.
Q: What are the key features of LTC4098EPDC? A: Some key features include MPPT (Maximum Power Point Tracking), battery charger, and LDO (Low Dropout Regulator) functionality.
Q: How does LTC4098EPDC perform MPPT? A: LTC4098EPDC uses an internal algorithm to track the maximum power point of the energy source and optimize power transfer efficiency.
Q: Can LTC4098EPDC charge different types of batteries? A: Yes, LTC4098EPDC supports various battery chemistries such as Li-Ion, Li-Polymer, and LiFePO4.
Q: What is the input voltage range supported by LTC4098EPDC? A: The input voltage range is typically between 4V and 18V, making it suitable for a wide range of energy harvesting sources.
Q: Does LTC4098EPDC have any protection features? A: Yes, LTC4098EPDC provides overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe operation.
Q: Can LTC4098EPDC operate in low light conditions? A: Yes, LTC4098EPDC has a low-power mode that allows it to operate efficiently even in low light or low power situations.
Q: Is LTC4098EPDC suitable for IoT applications? A: Yes, LTC4098EPDC is commonly used in IoT devices that rely on energy harvesting from sources like solar panels or vibration sensors.
Q: What is the efficiency of LTC4098EPDC? A: The efficiency can vary depending on the input and output conditions, but it typically achieves high conversion efficiency above 90%.
Q: Are there any evaluation boards available for LTC4098EPDC? A: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and reference designs to help developers quickly prototype their applications.
Please note that these answers are general and may vary based on specific application requirements. It's always recommended to refer to the datasheet and application notes for detailed information.