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LTC4098EPDC-1
Product Overview
Category
The LTC4098EPDC-1 belongs to the category of power management integrated circuits (PMICs).
Use
This PMIC is primarily used for managing and charging single-cell lithium-ion/polymer batteries.
Characteristics
- The LTC4098EPDC-1 offers a compact and efficient solution for battery charging applications.
- It provides a wide input voltage range, making it suitable for various power sources.
- This PMIC incorporates a high-efficiency step-down DC/DC converter for power delivery.
- It includes an accurate battery charger with programmable charge current and termination.
- The LTC4098EPDC-1 also features a comprehensive set of protection functions to ensure safe operation.
Package
The LTC4098EPDC-1 is available in a small 12-pin DFN package, which facilitates space-constrained designs.
Essence
The essence of the LTC4098EPDC-1 lies in its ability to efficiently manage and charge single-cell lithium-ion/polymer batteries while providing essential protection features.
Packaging/Quantity
This PMIC is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.
Specifications
- Input Voltage Range: 2.7V to 5.5V
- Charge Current Range: Up to 2A
- Programmable Charge Termination
- Battery Float Voltage: 4.2V
- Step-Down Converter Efficiency: Up to 95%
- Operating Temperature Range: -40°C to 85°C
Detailed Pin Configuration
- VIN: Input voltage pin
- GND: Ground reference pin
- VOUT: Output voltage pin
- BAT: Battery connection pin
- PROG: Charge current programming pin
- STAT: Status output pin
- FLT: Fault output pin
- EN: Enable pin
- ISET: Input current limit programming pin
- TS: Thermal shutdown pin
- SCL: I2C serial clock pin
- SDA: I2C serial data pin
Functional Features
- Integrated battery charger and step-down DC/DC converter
- Programmable charge current and termination
- Automatic recharge feature for depleted batteries
- Battery temperature monitoring and protection
- Input current limit programmability
- I2C interface for configuration and status monitoring
- Fault detection and reporting
Advantages and Disadvantages
Advantages
- Compact and efficient solution for battery charging applications
- Wide input voltage range allows compatibility with various power sources
- Comprehensive set of protection functions ensures safe operation
- Programmable charge current and termination provide flexibility
- I2C interface enables easy configuration and status monitoring
Disadvantages
- Limited to single-cell lithium-ion/polymer battery charging applications
- Requires additional external components for complete system integration
Working Principles
The LTC4098EPDC-1 integrates a battery charger and a step-down DC/DC converter. The charger utilizes a constant-current/constant-voltage (CC/CV) charging algorithm to efficiently charge the connected lithium-ion/polymer battery. The charge current and termination voltage can be programmed to suit specific battery requirements.
The step-down converter provides a regulated output voltage, which can power the load or charge the battery. It operates at high efficiency, minimizing power losses and maximizing battery life.
The PMIC includes various protection features such as overvoltage protection, undervoltage lockout, thermal shutdown, and battery temperature monitoring. These safeguards ensure safe and reliable operation of the charging system.
Detailed Application Field Plans
The LTC4098EPDC-1 finds application in various portable electronic devices that utilize single-cell lithium-ion/polymer batteries. Some common application fields include:
- Smartphones and tablets
- Wearable devices
- Portable medical devices
- Wireless communication devices
- Portable audio/video players
Detailed and Complete Alternative Models
- LTC4098EPDC-2: Similar to LTC4098EPDC-1, but with additional features for multi-cell battery charging.
- LTC4098EPDC-3: Enhanced version with higher charge current capability and extended temperature range.
- LTC4098EPDC-4: Compact variant with reduced pin count and simplified functionality.
These alternative models offer similar functionality to the LTC4098EPDC-1 but cater to specific requirements or constraints in different applications.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC4098EPDC-1 v technických řešeních
Sure! Here are 10 common questions and answers related to the application of LTC4098EPDC-1 in technical solutions:
Q1: What is LTC4098EPDC-1? A1: LTC4098EPDC-1 is a high-efficiency power manager IC designed for energy harvesting applications, specifically for use with solar cells.
Q2: What are the key features of LTC4098EPDC-1? A2: Some key features of LTC4098EPDC-1 include maximum power point tracking (MPPT), integrated battery charger, and low quiescent current.
Q3: How does LTC4098EPDC-1 help in energy harvesting applications? A3: LTC4098EPDC-1 helps in energy harvesting applications by efficiently converting the harvested energy from solar cells into usable power for charging batteries or powering devices.
Q4: Can LTC4098EPDC-1 be used with other types of energy sources besides solar cells? A4: Yes, LTC4098EPDC-1 can be used with other types of energy sources like thermoelectric generators or wind turbines, as long as they provide a suitable input voltage range.
Q5: What is maximum power point tracking (MPPT)? A5: MPPT is a technique used to maximize the power output from a solar cell by continuously adjusting the load impedance to match the varying conditions of the solar panel.
Q6: Does LTC4098EPDC-1 have built-in protection features? A6: Yes, LTC4098EPDC-1 has built-in protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe operation.
Q7: Can LTC4098EPDC-1 charge multiple batteries simultaneously? A7: Yes, LTC4098EPDC-1 supports multi-cell battery charging, allowing for the simultaneous charging of multiple batteries connected in series.
Q8: What is the typical efficiency of LTC4098EPDC-1? A8: The typical efficiency of LTC4098EPDC-1 is around 90%, which ensures efficient power conversion and minimal energy loss.
Q9: Can LTC4098EPDC-1 operate in low light conditions? A9: Yes, LTC4098EPDC-1 can operate in low light conditions, thanks to its MPPT algorithm that allows it to extract maximum power even under low illumination.
Q10: Is LTC4098EPDC-1 suitable for portable or wearable devices? A10: Yes, LTC4098EPDC-1 is suitable for portable or wearable devices as it provides a compact and efficient solution for harvesting and managing energy from solar cells.
Please note that these answers are general and may vary depending on specific application requirements.