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LTC3851AEMSE#PBF
Product Overview
Category
LTC3851AEMSE#PBF belongs to the category of integrated circuits (ICs).
Use
This product is commonly used in power management applications.
Characteristics
- High efficiency
- Wide input voltage range
- Adjustable output voltage
- Current mode control
- Synchronous rectification
- Overcurrent protection
- Thermal shutdown
Package
LTC3851AEMSE#PBF is available in a 16-pin MSOP package.
Essence
The essence of this product lies in its ability to efficiently regulate and control power in various electronic devices.
Packaging/Quantity
LTC3851AEMSE#PBF is typically packaged in reels, with 250 units per reel.
Specifications
- Input Voltage Range: 4.5V to 38V
- Output Voltage Range: 0.6V to 24V
- Maximum Output Current: 10A
- Switching Frequency: Up to 2MHz
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
- VIN: Input voltage pin
- GND: Ground pin
- FB: Feedback pin for output voltage regulation
- COMP: Compensation pin for loop stability
- SS: Soft-start pin for controlled startup
- SYNC: Synchronization pin for external clock synchronization
- VCC: Supply voltage pin
- PGND: Power ground pin
- SW: Switch node pin for power transfer
- BOOT: Bootstrap capacitor pin for high-side MOSFET driver
- BST: Boost capacitor pin for high-side MOSFET driver
- SS/TRK: Soft-start/tracking pin for controlled startup or tracking operation
- OCSET: Overcurrent protection threshold setting pin
- SS/TRK: Soft-start/tracking pin for controlled startup or tracking operation
- VOUT: Output voltage pin
- PGND: Power ground pin
Functional Features
- High efficiency power conversion
- Accurate output voltage regulation
- Fast transient response
- Adjustable soft-start time
- Synchronization capability with external clock
- Overcurrent protection for enhanced safety
- Thermal shutdown to prevent overheating
Advantages and Disadvantages
Advantages
- High efficiency leads to energy savings
- Wide input voltage range allows for versatile applications
- Adjustable output voltage provides flexibility
- Current mode control ensures stable operation
- Synchronous rectification improves overall efficiency
Disadvantages
- Limited maximum output current of 10A
- Requires careful thermal management at high operating temperatures
Working Principles
LTC3851AEMSE#PBF operates on the principle of current mode control, where the inductor current is sensed and used to regulate the output voltage. It utilizes a synchronous rectification scheme to minimize power losses. The integrated circuit incorporates various protection features such as overcurrent protection and thermal shutdown to ensure safe and reliable operation.
Detailed Application Field Plans
LTC3851AEMSE#PBF finds applications in a wide range of electronic devices, including but not limited to: - Industrial power supplies - Telecom infrastructure equipment - Automotive electronics - Portable devices - LED lighting systems
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to LTC3851AEMSE#PBF include: - LT8610ABEMSE#PBF - LT3845EMSE#PBF - LT8609EMSE#PBF - LT8640SIVEMSE#PBF
These alternative models can be considered based on specific requirements and design constraints.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC3851AEMSE#PBF v technických řešeních
Sure! Here are 10 common questions and answers related to the application of LTC3851AEMSE#PBF in technical solutions:
Q1: What is LTC3851AEMSE#PBF? A1: LTC3851AEMSE#PBF is a specific model number for a power management integrated circuit (PMIC) manufactured by Linear Technology (now part of Analog Devices). It is designed for high-performance applications requiring multiple power rails.
Q2: What are the key features of LTC3851AEMSE#PBF? A2: Some key features of LTC3851AEMSE#PBF include wide input voltage range, high efficiency, programmable output voltage, adjustable switching frequency, and various protection features like overcurrent and overvoltage protection.
Q3: What are the typical applications of LTC3851AEMSE#PBF? A3: LTC3851AEMSE#PBF is commonly used in applications such as telecom and networking equipment, industrial automation, automotive electronics, and other systems that require efficient power management with multiple power rails.
Q4: How many power rails can LTC3851AEMSE#PBF support? A4: LTC3851AEMSE#PBF can support up to four independent power rails, making it suitable for complex systems with different voltage requirements.
Q5: Can LTC3851AEMSE#PBF handle high current loads? A5: Yes, LTC3851AEMSE#PBF is capable of handling high current loads. It has a built-in synchronous buck controller that can deliver high currents efficiently.
Q6: Is LTC3851AEMSE#PBF compatible with both step-down and step-up voltage conversion? A6: No, LTC3851AEMSE#PBF is primarily designed for step-down (buck) voltage conversion. It is not suitable for step-up (boost) applications.
Q7: What is the input voltage range of LTC3851AEMSE#PBF? A7: The input voltage range of LTC3851AEMSE#PBF is typically between 4.5V and 60V, making it suitable for a wide range of power supply sources.
Q8: Can I program the output voltage of LTC3851AEMSE#PBF? A8: Yes, LTC3851AEMSE#PBF allows you to program the output voltage using external resistors or through a digital interface, depending on the specific configuration.
Q9: Does LTC3851AEMSE#PBF have any protection features? A9: Yes, LTC3851AEMSE#PBF includes various protection features such as overcurrent protection, overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe operation.
Q10: Is there any evaluation board available for LTC3851AEMSE#PBF? A10: Yes, Analog Devices provides an evaluation board for LTC3851AEMSE#PBF, which can help in testing and prototyping the PMIC in different applications.
Please note that these answers are general and may vary based on the specific requirements and configurations of your technical solution.