ON Semiconductor
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MC34163DW
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MC34163DW

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low Dropout, Adjustable Output, Current Limiting
  • Package: SOIC-8 (Small Outline Integrated Circuit)
  • Essence: Efficient and reliable voltage regulation
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 40V
  • Output Voltage Range: 1.25V to 37V
  • Output Current: Up to 1.5A
  • Dropout Voltage: 1.3V typical at 1A load
  • Quiescent Current: 2.5mA typical
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MC34163DW is an 8-pin IC with the following pin configuration:

  1. Feedback (FB) - Connects to an external resistor divider network for setting the output voltage.
  2. Error Amplifier Input (EA-) - Inverting input of the internal error amplifier.
  3. Error Amplifier Output (EA+) - Output of the internal error amplifier.
  4. Ground (GND) - Common ground reference for the IC.
  5. Output (OUT) - Regulated output voltage.
  6. Shutdown (SD) - Active low shutdown pin.
  7. Input (IN) - Input voltage supply.
  8. Error Amplifier Compensation (COMP) - External compensation capacitor connection.

Functional Features

  • Adjustable Output: The output voltage can be set using an external resistor divider network.
  • Current Limiting: The IC incorporates current limiting protection to prevent damage to the circuit.
  • Low Dropout: The dropout voltage is minimal, ensuring efficient power conversion even with low input-output voltage differentials.
  • Shutdown Mode: The IC can be put into a low-power shutdown mode by pulling the Shutdown (SD) pin low.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - Adjustable output voltage provides flexibility. - Low dropout voltage ensures efficient power conversion. - Current limiting protection enhances circuit reliability.

Disadvantages: - Limited output current capability compared to higher-rated regulators. - Requires external components for proper operation.

Working Principles

The MC34163DW is a voltage regulator that uses a feedback mechanism to maintain a stable output voltage. It compares the output voltage with a reference voltage and adjusts the internal error amplifier accordingly. By adjusting the duty cycle of an internal oscillator, it controls the switching of an internal power transistor to regulate the output voltage.

Detailed Application Field Plans

The MC34163DW finds applications in various fields, including but not limited to: - Power supplies for industrial equipment - Automotive electronics - Battery-powered devices - Telecommunications equipment - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the MC34163DW include: - LM317: Adjustable voltage regulator with higher output current capability. - LM7805: Fixed 5V voltage regulator. - LT1084: Adjustable voltage regulator with low dropout voltage.

These alternative models offer different features and specifications, providing options based on specific application requirements.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van MC34163DW in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of MC34163DW in technical solutions:

  1. Q: What is MC34163DW? A: MC34163DW is a voltage regulator IC (integrated circuit) that can be used to regulate and control the output voltage in various electronic applications.

  2. Q: What is the input voltage range for MC34163DW? A: The input voltage range for MC34163DW is typically between 3V and 40V.

  3. Q: What is the output voltage range for MC34163DW? A: The output voltage range for MC34163DW can be adjusted from 1.25V to 37V, depending on the external components used.

  4. Q: Can MC34163DW handle high current loads? A: Yes, MC34163DW can handle high current loads up to 1.5A, making it suitable for a wide range of applications.

  5. Q: Is MC34163DW suitable for battery-powered applications? A: Yes, MC34163DW is suitable for battery-powered applications as it has low quiescent current and can operate efficiently with low input voltages.

  6. Q: Does MC34163DW have built-in protection features? A: Yes, MC34163DW has built-in protection features such as thermal shutdown, overcurrent protection, and short-circuit protection.

  7. Q: Can MC34163DW be used in automotive applications? A: Yes, MC34163DW is suitable for automotive applications as it can withstand high temperatures and has a wide operating temperature range.

  8. Q: How does MC34163DW achieve voltage regulation? A: MC34163DW uses a feedback mechanism along with an external resistor and capacitor to regulate the output voltage.

  9. Q: Can MC34163DW be used in both step-up and step-down configurations? A: Yes, MC34163DW can be used in both step-up (boost) and step-down (buck) configurations, providing flexibility in various applications.

  10. Q: Are there any application notes or reference designs available for MC34163DW? A: Yes, the manufacturer of MC34163DW provides application notes and reference designs that can help users understand and implement the IC in their technical solutions.

Please note that these answers are general and may vary depending on specific application requirements and circuit design considerations.