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LM5115AMT/NOPB

LM5115AMT/NOPB

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Voltage Synchronous Buck Controller
  • Package: 16-TSSOP
  • Essence: Efficient power conversion and management
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 100V
  • Output Voltage Range: 0.8V to 90V
  • Maximum Switching Frequency: 1 MHz
  • Operating Temperature Range: -40°C to +125°C
  • Features:
    • Adjustable output voltage
    • Synchronous rectification
    • Programmable soft-start
    • Overcurrent protection
    • Thermal shutdown protection

Pin Configuration

The LM5115AMT/NOPB has a 16-pin TSSOP package with the following pin configuration:

  1. VIN: Input voltage
  2. BOOT: Bootstrap capacitor connection
  3. PH: High-side MOSFET gate drive
  4. LX: Switch node connection
  5. PGND: Power ground
  6. COMP: Compensation pin for loop stability
  7. SS/TR: Soft-start/Tracking input
  8. FB: Feedback voltage input
  9. VCC: Supply voltage for internal circuitry
  10. EN: Enable pin
  11. AGND: Analog ground
  12. RT: Oscillator timing resistor
  13. CT: Oscillator timing capacitor
  14. SS/TR: Soft-start/Tracking input
  15. UVLO: Undervoltage lockout
  16. PG: Power good indicator

Functional Features

  • Wide input voltage range allows for versatile applications
  • High efficiency due to synchronous rectification
  • Adjustable output voltage provides flexibility
  • Programmable soft-start enables controlled startup
  • Overcurrent protection ensures safe operation
  • Thermal shutdown protection prevents overheating

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for use in various systems - High efficiency results in reduced power loss - Adjustable output voltage provides flexibility for different loads - Programmable soft-start prevents excessive inrush current - Overcurrent and thermal shutdown protection enhance system safety

Disadvantages: - Limited maximum switching frequency may not be suitable for certain applications - 16-pin TSSOP package may require additional space on the PCB

Working Principles

The LM5115AMT/NOPB is a high voltage synchronous buck controller. It regulates the output voltage by controlling the duty cycle of the high-side and low-side MOSFETs. The controller uses a feedback loop to adjust the duty cycle based on the difference between the desired output voltage and the actual output voltage. Synchronous rectification improves efficiency by reducing power losses during switching.

Application Field Plans

The LM5115AMT/NOPB is commonly used in the following applications:

  1. Industrial power supplies
  2. Telecom infrastructure
  3. Automotive electronics
  4. Renewable energy systems
  5. LED lighting

Alternative Models

  1. LM5116: Similar functionality with higher maximum switching frequency
  2. LM5122: Dual-channel synchronous buck controller
  3. LM25066: Integrated power management IC with multiple channels

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Énumérez 10 questions et réponses courantes liées à l'application de LM5115AMT/NOPB dans les solutions techniques

  1. Question: What is the maximum input voltage for LM5115AMT/NOPB?
    Answer: The maximum input voltage for LM5115AMT/NOPB is 100V.

  2. Question: What is the typical switching frequency of LM5115AMT/NOPB?
    Answer: The typical switching frequency of LM5115AMT/NOPB is 200 kHz.

  3. Question: Can LM5115AMT/NOPB be used in automotive applications?
    Answer: Yes, LM5115AMT/NOPB is suitable for automotive applications.

  4. Question: What is the maximum output current of LM5115AMT/NOPB?
    Answer: The maximum output current of LM5115AMT/NOPB is 1.5A.

  5. Question: Is LM5115AMT/NOPB suitable for use in industrial power supplies?
    Answer: Yes, LM5115AMT/NOPB is well-suited for industrial power supply applications.

  6. Question: Does LM5115AMT/NOPB have built-in overcurrent protection?
    Answer: Yes, LM5115AMT/NOPB features built-in overcurrent protection.

  7. Question: What is the operating temperature range of LM5115AMT/NOPB?
    Answer: The operating temperature range of LM5115AMT/NOPB is -40°C to 125°C.

  8. Question: Can LM5115AMT/NOPB be used in battery charging applications?
    Answer: Yes, LM5115AMT/NOPB can be utilized in battery charging applications.

  9. Question: What type of package does LM5115AMT/NOPB come in?
    Answer: LM5115AMT/NOPB is available in a PowerPAD™ MSOP-10 package.

  10. Question: Is LM5115AMT/NOPB suitable for use in LED lighting applications?
    Answer: Yes, LM5115AMT/NOPB is suitable for use in LED lighting applications.