Texas Instruments
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UCC38083PWG4
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UCC38083PWG4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High-performance current mode PWM controller
  • Package: TSSOP-20
  • Essence: Efficient power conversion and control
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 8V to 18V
  • Output Voltage Range: 0.8V to 7.5V
  • Operating Temperature Range: -40°C to 85°C
  • Switching Frequency: Adjustable up to 1MHz
  • Maximum Duty Cycle: 100%
  • Protection Features: Overvoltage, undervoltage, overcurrent, and thermal shutdown

Detailed Pin Configuration

  1. COMP: Compensation pin for loop stability
  2. CS: Current sense input for current limit protection
  3. FB: Feedback pin for output voltage regulation
  4. VREF: Reference voltage output
  5. RT/CT: Timing components for oscillator frequency control
  6. SS/TR: Soft-start and tracking control pin
  7. GND: Ground reference
  8. VDD: Supply voltage input
  9. DRVH: High-side gate driver output
  10. DRVL: Low-side gate driver output
  11. SYNC: Synchronization input for multiple ICs
  12. OSC: Oscillator timing capacitor connection
  13. UVLO: Undervoltage lockout threshold setting
  14. EN/UV: Enable and undervoltage lockout control
  15. PGND: Power ground reference
  16. VSENSE: Voltage sense input for feedback compensation
  17. ISENSE: Current sense input for feedback compensation
  18. VCC: Internal regulator output
  19. VREFN: Negative reference voltage output
  20. VREFP: Positive reference voltage output

Functional Features

  • Current mode control for improved line and load regulation
  • Adjustable switching frequency for optimization of efficiency and component size
  • Soft-start and tracking capability for controlled startup and sequencing
  • Integrated high-side and low-side gate drivers for driving external MOSFETs
  • Protection features for enhanced system reliability

Advantages and Disadvantages

Advantages

  • High-performance power management solution
  • Efficient power conversion and control
  • Wide input voltage range
  • Adjustable switching frequency
  • Comprehensive protection features
  • Compact TSSOP-20 package

Disadvantages

  • Limited to applications requiring a maximum output voltage of 7.5V
  • Not suitable for extreme temperature environments

Working Principles

The UCC38083PWG4 is a current mode PWM controller designed for power management applications. It operates by comparing the sensed current with a reference signal to regulate the output voltage. The switching frequency can be adjusted to optimize efficiency and component size. The integrated gate drivers drive external MOSFETs, enabling efficient power conversion.

Detailed Application Field Plans

The UCC38083PWG4 is widely used in various power management applications, including:

  1. Switching Power Supplies
  2. DC-DC Converters
  3. LED Lighting Systems
  4. Battery Chargers
  5. Industrial Control Systems

Detailed and Complete Alternative Models

  1. UCC28083PWG4
  2. UCC38084PWG4
  3. UCC38085PWG4
  4. UCC38086PWG4
  5. UCC38087PWG4

These alternative models offer similar functionality and characteristics, providing flexibility in design choices.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de UCC38083PWG4 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of UCC38083PWG4 in technical solutions:

  1. Q: What is UCC38083PWG4? A: UCC38083PWG4 is a pulse width modulation (PWM) controller IC used for controlling power converters in various applications.

  2. Q: What are the key features of UCC38083PWG4? A: Some key features include adjustable frequency, soft-start capability, cycle-by-cycle current limiting, and integrated high-voltage startup circuitry.

  3. Q: What is the typical operating voltage range for UCC38083PWG4? A: The typical operating voltage range is between 8V and 18V.

  4. Q: Can UCC38083PWG4 be used in both buck and boost converter topologies? A: Yes, UCC38083PWG4 can be used in both buck and boost converter topologies.

  5. Q: How does UCC38083PWG4 provide protection against overcurrent conditions? A: UCC38083PWG4 provides cycle-by-cycle current limiting, which helps protect against overcurrent conditions.

  6. Q: Does UCC38083PWG4 have built-in protection against overvoltage or undervoltage conditions? A: No, UCC38083PWG4 does not have built-in protection against overvoltage or undervoltage conditions. Additional external circuitry may be required for such protection.

  7. Q: Can UCC38083PWG4 operate in a wide temperature range? A: Yes, UCC38083PWG4 can operate in a temperature range of -40°C to +125°C.

  8. Q: Is UCC38083PWG4 suitable for high-frequency applications? A: Yes, UCC38083PWG4 is suitable for high-frequency applications as it supports adjustable frequency up to 1MHz.

  9. Q: What is the maximum duty cycle that UCC38083PWG4 can support? A: The maximum duty cycle that UCC38083PWG4 can support is typically around 90%.

  10. Q: Can UCC38083PWG4 be used in automotive applications? A: Yes, UCC38083PWG4 is suitable for automotive applications as it meets the necessary automotive standards and requirements.

Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.