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LTC3851AEGN#TRPBF
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LTC3851AEGN#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Wide input voltage range - Low quiescent current - Adjustable output voltage - Current mode control - Synchronous rectification - Overcurrent protection - Thermal shutdown

Package: 16-Lead SSOP

Essence: The LTC3851AEGN#TRPBF is a high-performance power management IC designed for various applications that require efficient power conversion.

Packaging/Quantity: The LTC3851AEGN#TRPBF is available in a 16-Lead SSOP package. It is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Input Voltage Range: 4.5V to 38V
  • Output Voltage Range: 0.6V to VIN
  • Maximum Continuous Output Current: 10A
  • Switching Frequency Range: 100kHz to 750kHz
  • Quiescent Current: 50µA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3851AEGN#TRPBF features the following pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. FB: Feedback pin for output voltage regulation
  4. SYNC/SS: Synchronization and soft-start pin
  5. VCC: Supply voltage pin for internal circuitry
  6. PGND: Power ground pin
  7. SW: Switch node pin
  8. BOOT: Bootstrap capacitor connection pin
  9. SS/TR: Soft-start and tracking pin
  10. COMP: Compensation pin for loop stability
  11. RT/CLKOUT: External resistor connection for frequency synchronization or clock output
  12. CLKIN: External clock input pin
  13. SS/TR2: Second soft-start and tracking pin
  14. VCCSENSE: Supply voltage sense pin
  15. OCSET: Overcurrent protection threshold setting pin
  16. VOUT: Output voltage pin

Functional Features

The LTC3851AEGN#TRPBF offers the following functional features:

  • Wide input voltage range allows for versatile applications.
  • High efficiency power conversion minimizes energy loss.
  • Current mode control provides stable and accurate regulation.
  • Synchronous rectification improves overall efficiency.
  • Overcurrent protection ensures safe operation.
  • Thermal shutdown protects the IC from overheating.

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Wide input voltage range - Accurate output voltage regulation - Overcurrent protection - Thermal shutdown for added safety

Disadvantages: - Limited maximum continuous output current (10A)

Working Principles

The LTC3851AEGN#TRPBF operates based on a current mode control architecture. It regulates the output voltage by adjusting the duty cycle of the internal power switch. The synchronous rectification mechanism further enhances efficiency by reducing power losses during switching transitions. The IC also incorporates overcurrent protection and thermal shutdown features to ensure safe and reliable operation.

Detailed Application Field Plans

The LTC3851AEGN#TRPBF is suitable for various power management applications, including but not limited to: - Industrial equipment - Telecommunications systems - Automotive electronics - Renewable energy systems - Consumer electronics - Medical devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LTC3851AEGN#TRPBF include: - LTC3850AEGN#TRPBF - LTC3862AEGN#TRPBF - LTC3872AEGN#TRPBF - LTC3890AEGN#TRPBF

These alternative models can be considered based on specific application requirements and design constraints.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi LTC3851AEGN#TRPBF dalam penyelesaian teknikal

  1. Question: What is the maximum input voltage for LTC3851AEGN#TRPBF?
    Answer: The maximum input voltage for LTC3851AEGN#TRPBF is 80V.

  2. Question: What is the typical switching frequency of LTC3851AEGN#TRPBF?
    Answer: The typical switching frequency of LTC3851AEGN#TRPBF is 500kHz.

  3. Question: What is the maximum duty cycle supported by LTC3851AEGN#TRPBF?
    Answer: The maximum duty cycle supported by LTC3851AEGN#TRPBF is 90%.

  4. Question: Can LTC3851AEGN#TRPBF be used in automotive applications?
    Answer: Yes, LTC3851AEGN#TRPBF is suitable for automotive applications.

  5. Question: What is the operating temperature range for LTC3851AEGN#TRPBF?
    Answer: The operating temperature range for LTC3851AEGN#TRPBF is -40°C to 125°C.

  6. Question: Does LTC3851AEGN#TRPBF have built-in overcurrent protection?
    Answer: Yes, LTC3851AEGN#TRPBF features built-in overcurrent protection.

  7. Question: What type of package does LTC3851AEGN#TRPBF come in?
    Answer: LTC3851AEGN#TRPBF is available in a 16-lead SSOP package.

  8. Question: Can LTC3851AEGN#TRPBF be synchronized to an external clock?
    Answer: Yes, LTC3851AEGN#TRPBF can be synchronized to an external clock signal.

  9. Question: What is the typical efficiency of LTC3851AEGN#TRPBF?
    Answer: The typical efficiency of LTC3851AEGN#TRPBF is 95%.

  10. Question: Is there a minimum input voltage requirement for LTC3851AEGN#TRPBF?
    Answer: Yes, the minimum input voltage requirement for LTC3851AEGN#TRPBF is 4.5V.