ON Semiconductor
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MC33067P
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MC33067P

Product Overview

Category

MC33067P belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a pulse width modulation (PWM) controller.

Characteristics

  • MC33067P is a versatile PWM controller that can be used in various applications.
  • It operates over a wide voltage range, making it suitable for different power supply systems.
  • The device offers high efficiency and precise control over the output waveform.
  • It has built-in protection features such as overcurrent and overtemperature protection.

Package

MC33067P is available in a standard 16-pin dual in-line package (DIP).

Essence

The essence of MC33067P lies in its ability to generate accurate and stable PWM signals for controlling power electronic devices.

Packaging/Quantity

MC33067P is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

  • Input Voltage Range: 8V to 40V
  • Output Voltage Range: 0V to VCC
  • Maximum Output Current: 1A
  • Operating Temperature Range: -40°C to 85°C
  • Frequency Range: 100Hz to 500kHz

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground reference
  3. COMP: Error amplifier output
  4. CS: Current sense input
  5. RT/CT: Timing components connection
  6. OSC: Oscillator timing capacitor connection
  7. SYNC: Synchronization input
  8. DIS: Disable input
  9. DRVH: High-side gate driver output
  10. DRVL: Low-side gate driver output
  11. FB: Feedback input
  12. SS/TR: Soft-start/tracking time constant connection
  13. VREF: Reference voltage output
  14. UVLO: Undervoltage lockout input
  15. VSENSE: Voltage sense input
  16. VREF2: Secondary reference voltage output

Functional Features

  • Accurate and stable PWM signal generation
  • Adjustable duty cycle and frequency
  • Overcurrent protection
  • Overtemperature protection
  • Soft-start function for smooth power-up
  • Synchronization capability with external clock source

Advantages and Disadvantages

Advantages

  • Wide operating voltage range allows for versatile applications.
  • High efficiency and precise control result in optimal performance.
  • Built-in protection features enhance system reliability.
  • Synchronization capability enables integration into complex systems.

Disadvantages

  • Limited maximum output current may restrict usage in high-power applications.
  • The 16-pin DIP package may not be suitable for space-constrained designs.

Working Principles

MC33067P operates by comparing the feedback voltage with a reference voltage to generate an error signal. This error signal is then amplified and used to control the duty cycle of the PWM signal. By adjusting the duty cycle, the average output voltage can be regulated. The device also incorporates various protection mechanisms to ensure safe operation under different conditions.

Detailed Application Field Plans

MC33067P finds applications in various fields, including but not limited to: - Switching power supplies - Motor control systems - LED lighting - Battery charging circuits - Audio amplifiers

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to MC33067P are: - UC3843 - SG3525 - TL494 - IRS2153D

These alternatives can be considered based on specific requirements and availability.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MC33067P v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MC33067P in technical solutions:

  1. Q: What is MC33067P? A: MC33067P is a high-performance pulse width modulation (PWM) controller IC used for controlling power electronics applications.

  2. Q: What are the typical applications of MC33067P? A: MC33067P is commonly used in applications such as DC-DC converters, motor control circuits, and power supply units.

  3. Q: What is the operating voltage range of MC33067P? A: The operating voltage range of MC33067P is typically between 8V and 40V.

  4. Q: Can MC33067P handle high currents? A: Yes, MC33067P can handle high currents up to several amps, depending on the external components used in the circuit.

  5. Q: Does MC33067P have built-in protection features? A: Yes, MC33067P has built-in protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout.

  6. Q: How does MC33067P generate PWM signals? A: MC33067P generates PWM signals by comparing a sawtooth waveform with a control voltage input.

  7. Q: Can MC33067P operate at high frequencies? A: Yes, MC33067P can operate at high frequencies up to several hundred kilohertz, making it suitable for various switching applications.

  8. Q: What type of feedback can be used with MC33067P? A: MC33067P supports both voltage mode and current mode feedback control techniques.

  9. Q: Is MC33067P easy to use in circuit designs? A: Yes, MC33067P is relatively easy to use as it requires minimal external components and has a straightforward pin configuration.

  10. Q: Are there any application notes or reference designs available for MC33067P? A: Yes, the manufacturer of MC33067P provides application notes and reference designs that can help users understand and implement the IC in their circuits effectively.

Please note that the answers provided here are general and may vary depending on specific circuit requirements and design considerations.