LTC4090EDJC-3#PBF
Product Overview
Category
The LTC4090EDJC-3#PBF 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 LTC4090EDJC-3#PBF offers a complete power management solution for portable devices.
- It integrates a linear battery charger, a low-loss PowerPath manager, and a high-efficiency synchronous buck-boost converter.
- This PMIC provides efficient power conversion and charging capabilities in a compact package.
Package
The LTC4090EDJC-3#PBF is available in a 16-pin DFN (3mm x 3mm) package.
Essence
The essence of this product lies in its ability to efficiently manage power and charge lithium-ion/polymer batteries in portable devices.
Packaging/Quantity
The LTC4090EDJC-3#PBF is typically sold in tape and reel packaging. The exact quantity per reel may vary depending on the supplier.
Specifications
- Input Voltage Range: 2.7V to 5.5V
- Maximum Charge Current: 1A
- Programmable Charge Current Limit
- Battery Float Voltage: 4.2V
- Buck-Boost Output Voltage Range: 2.5V to 5.25V
- Efficiency: Up to 94%
- Operating Temperature Range: -40°C to 85°C
Detailed Pin Configuration
- VIN: Input voltage pin
- GND: Ground pin
- VBAT: Battery voltage pin
- PROG: Charge current programming pin
- STAT: Status output pin
- CE: Enable pin
- ISET: Buck-boost output current setting pin
- PGND: Power ground pin
- LX: Buck-boost switch node pin
- BST: Buck-boost supply input pin
- VOUT: Buck-boost output voltage pin
- FB: Buck-boost feedback pin
- SS: Soft-start pin
- INTVCC: Internal voltage regulator output pin
- FLT: Fault indicator pin
- TS: Thermal shutdown pin
Functional Features
Integrated Linear Battery Charger:
- Constant-current/constant-voltage charging algorithm
- Programmable charge current limit
- Automatic recharge
- Charge status indication
Low-Loss PowerPath Manager:
- Seamless transition between input power and battery power
- Ideal diode operation for minimal voltage drop
- Reverse leakage protection
High-Efficiency Synchronous Buck-Boost Converter:
- Wide input voltage range
- Adjustable output voltage
- High efficiency across a wide load range
- Overcurrent and overvoltage protection
Advantages and Disadvantages
Advantages
- Compact and integrated power management solution
- Efficient charging and power conversion capabilities
- Seamless transition between input power and battery power
- Wide input voltage range
- Adjustable output voltage
Disadvantages
- Limited to single-cell lithium-ion/polymer batteries
- May require additional external components for specific applications
Working Principles
The LTC4090EDJC-3#PBF operates by efficiently managing the power flow between the input source, the battery, and the load. It uses a constant-current/constant-voltage charging algorithm to safely charge the connected lithium-ion/polymer battery. The low-loss PowerPath manager ensures seamless transition between the input power and the battery power, minimizing voltage drops. The high-efficiency synchronous buck-boost converter provides adjustable output voltage and efficient power conversion across a wide load range.
Detailed Application Field Plans
The LTC4090EDJC-3#PBF is suitable for various portable devices that require single-cell lithium-ion/polymer battery management and charging. Some potential application fields include: - Smartphones and tablets - Portable medical devices - Wearable devices - Portable audio/video players - GPS navigation systems - Handheld gaming consoles
Detailed and Complete Alternative Models
- LTC4162-L: Similar PMIC with additional features like I²C interface and fuel gauge functionality.
- MCP73871: PMIC with similar charging capabilities but in a different package.
- BQ24075: PMIC with integrated USB OTG support and similar charging characteristics.
These alternative models offer similar functionalities to the LTC4090EDJC-3#PBF and can be considered based on specific requirements and preferences.
Word count: 607 words
Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LTC4090EDJC-3#PBF i tekniska lösningar
Sure! Here are 10 common questions and answers related to the application of LTC4090EDJC-3#PBF in technical solutions:
Q: What is LTC4090EDJC-3#PBF? A: LTC4090EDJC-3#PBF is a specific model of a battery charger IC manufactured by Linear Technology (now part of Analog Devices). It is designed for charging single-cell lithium-ion/polymer batteries.
Q: What is the input voltage range supported by LTC4090EDJC-3#PBF? A: The input voltage range supported by LTC4090EDJC-3#PBF is typically between 4.95V and 6.5V.
Q: Can LTC4090EDJC-3#PBF charge multiple batteries simultaneously? A: No, LTC4090EDJC-3#PBF is designed to charge a single-cell lithium-ion/polymer battery at a time.
Q: What is the maximum charging current supported by LTC4090EDJC-3#PBF? A: The maximum charging current supported by LTC4090EDJC-3#PBF is typically 800mA.
Q: Does LTC4090EDJC-3#PBF have built-in overvoltage protection? A: Yes, LTC4090EDJC-3#PBF has built-in overvoltage protection to prevent the battery from being charged beyond its safe voltage limit.
Q: Can LTC4090EDJC-3#PBF be used in portable electronic devices? A: Yes, LTC4090EDJC-3#PBF is commonly used in portable electronic devices such as smartphones, tablets, and wearable devices.
Q: Does LTC4090EDJC-3#PBF support fast charging? A: Yes, LTC4090EDJC-3#PBF supports a programmable charge current limit, allowing for faster charging if desired.
Q: What is the typical efficiency of LTC4090EDJC-3#PBF? A: The typical efficiency of LTC4090EDJC-3#PBF is around 90%, which helps to minimize power loss during the charging process.
Q: Can LTC4090EDJC-3#PBF be used in automotive applications? A: Yes, LTC4090EDJC-3#PBF can be used in automotive applications as long as the input voltage range and other specifications are compatible with the requirements of the specific application.
Q: Are there any evaluation boards or reference designs available for LTC4090EDJC-3#PBF? A: Yes, Analog Devices provides evaluation boards and reference designs for LTC4090EDJC-3#PBF, which can help developers quickly prototype and integrate the IC into their designs.
Please note that the answers provided here are general and may vary depending on the specific datasheet and application notes provided by the manufacturer. It is always recommended to refer to the official documentation for accurate and up-to-date information.