LTC4009IUF-1#PBF
Product Overview
Category
The LTC4009IUF-1#PBF belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.
Use
This product is primarily used for battery charging applications, providing a comprehensive solution for charging single-cell lithium-ion/polymer batteries.
Characteristics
- The LTC4009IUF-1#PBF offers high efficiency charging with its synchronous buck topology.
- It supports a wide input voltage range, making it suitable for various power sources.
- This IC incorporates a constant-current/constant-voltage (CC/CV) charge algorithm, ensuring optimal charging performance.
- It includes multiple safety features such as thermal shutdown, reverse battery protection, and battery temperature monitoring.
Package
The LTC4009IUF-1#PBF is available in a compact 16-lead QFN (Quad Flat No-Lead) package, which facilitates easy integration into space-constrained designs.
Essence
The essence of the LTC4009IUF-1#PBF lies in its ability to efficiently and safely charge lithium-ion/polymer batteries, enabling reliable power supply for portable electronic devices.
Packaging/Quantity
This product is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.
Specifications
- Input Voltage Range: 4.5V to 28V
- Charge Current Range: Up to 2A
- Charge Voltage Range: 4.1V to 4.2V
- Operating Temperature Range: -40°C to 85°C
- Efficiency: Up to 95%
- Battery Temperature Monitoring Accuracy: ±1°C
Detailed Pin Configuration
- VIN: Input voltage pin
- GND: Ground reference pin
- PROG: Charge current programming pin
- STAT: Charge status indicator pin
- TS: Battery temperature sense pin
- VBAT: Battery voltage sense pin
- ILIM: Input current limit programming pin
- SS: Soft-start capacitor pin
- FB: Feedback voltage regulation pin
- EN: Enable pin
- PGND: Power ground reference pin
- SW: Switching node pin
- SW: Switching node pin
- SW: Switching node pin
- SW: Switching node pin
- SW: Switching node pin
Functional Features
- Constant-current/constant-voltage (CC/CV) charging algorithm
- High efficiency synchronous buck topology
- Thermal shutdown protection
- Reverse battery protection
- Battery temperature monitoring
- Programmable charge current and input current limit
- Charge status indication
Advantages and Disadvantages
Advantages
- High charging efficiency ensures faster charging times.
- Wide input voltage range allows compatibility with various power sources.
- Comprehensive safety features protect the battery and the charging circuitry.
- Compact package facilitates integration into space-constrained designs.
Disadvantages
- Limited to single-cell lithium-ion/polymer battery charging applications.
- May require additional external components for certain applications.
Working Principles
The LTC4009IUF-1#PBF operates on a constant-current/constant-voltage (CC/CV) charging algorithm. It regulates the charging current until the battery voltage reaches the programmed charge voltage. Once the battery voltage reaches this level, the IC switches to constant-voltage mode, maintaining a steady voltage while reducing the charging current. This approach ensures efficient and safe charging of lithium-ion/polymer batteries.
Detailed Application Field Plans
The LTC4009IUF-1#PBF finds extensive application in portable electronic devices such as smartphones, tablets, digital cameras, and portable gaming consoles. It is also suitable for battery-powered medical devices, handheld instruments, and other portable equipment requiring reliable battery charging.
Detailed and Complete Alternative Models
- LTC4009IUFD-1#PBF: Similar to LTC4009IUF-1#PBF but with a higher charge current capability of up to 3A.
- LTC4009IUF-2#PBF: Variant with a different pin configuration, suitable for alternate PCB layouts.
- LTC4009IUF-3#PBF: Enhanced version with additional safety features such as overvoltage protection and short-circuit protection.
These alternative models provide flexibility in choosing the most suitable option based on specific application requirements.
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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LTC4009IUF-1#PBF i tekniska lösningar
Sure! Here are 10 common questions and answers related to the application of LTC4009IUF-1#PBF in technical solutions:
Q1: What is LTC4009IUF-1#PBF? A1: LTC4009IUF-1#PBF is a specific model number for a battery charger IC manufactured by Linear Technology (now part of Analog Devices). It is designed for charging single-cell lithium-ion/polymer batteries.
Q2: What is the input voltage range for LTC4009IUF-1#PBF? A2: The input voltage range for LTC4009IUF-1#PBF is typically between 4.5V and 32V.
Q3: What is the maximum charge current supported by LTC4009IUF-1#PBF? A3: LTC4009IUF-1#PBF can support a maximum charge current of up to 4A.
Q4: Can LTC4009IUF-1#PBF charge multiple batteries simultaneously? A4: No, LTC4009IUF-1#PBF is designed to charge a single-cell lithium-ion/polymer battery at a time.
Q5: Does LTC4009IUF-1#PBF have built-in thermal protection? A5: Yes, LTC4009IUF-1#PBF has built-in thermal protection to prevent overheating during charging.
Q6: What is the typical efficiency of LTC4009IUF-1#PBF? A6: The typical efficiency of LTC4009IUF-1#PBF is around 90%.
Q7: Can LTC4009IUF-1#PBF be used for fast charging applications? A7: Yes, LTC4009IUF-1#PBF supports fast charging and can be configured for different charge profiles.
Q8: What is the maximum battery voltage that LTC4009IUF-1#PBF can handle? A8: LTC4009IUF-1#PBF can handle a maximum battery voltage of up to 4.2V.
Q9: Does LTC4009IUF-1#PBF have overvoltage protection? A9: Yes, LTC4009IUF-1#PBF has built-in overvoltage protection to prevent the battery from being charged beyond its safe limit.
Q10: Can LTC4009IUF-1#PBF be used in portable electronic devices? A10: Yes, LTC4009IUF-1#PBF is commonly used in portable electronic devices such as smartphones, tablets, and wearable devices for battery charging applications.
Please note that these answers are general and may vary depending on the specific application and configuration of LTC4009IUF-1#PBF. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information and guidelines.