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MC34163DWR2
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MC34163DWR2

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short-circuit current limiting

Package: SOIC-16

Essence: The MC34163DWR2 is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The MC34163DWR2 is available in a SOIC-16 package and is typically sold in reels of 2500 units.

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)
  • Quiescent Current: 2.5mA (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MC34163DWR2 has 16 pins, which are assigned as follows:

  1. Feedback (FB) - Connects to an external resistor divider network to set the desired output voltage.
  2. Error Amplifier Inverting Input (-) - Inverting input of the internal error amplifier.
  3. Error Amplifier Non-Inverting Input (+) - Non-inverting input of the internal error amplifier.
  4. Ground (GND) - Common ground reference for the IC.
  5. Error Amplifier Output - Output of the internal error amplifier.
  6. Compensation - Connects an external capacitor for loop stability compensation.
  7. Soft Start - Connects an external capacitor to control the soft start time.
  8. Shutdown - Active low input to disable the regulator.
  9. VCC - Power supply input for the IC.
  10. Output - Regulated output voltage.
  11. Sense - Connects to the load for remote sensing of the output voltage.
  12. Feedback (FB) - Connects to an external resistor divider network to set the desired output voltage.
  13. Error Amplifier Inverting Input (-) - Inverting input of the internal error amplifier.
  14. Error Amplifier Non-Inverting Input (+) - Non-inverting input of the internal error amplifier.
  15. Ground (GND) - Common ground reference for the IC.
  16. Error Amplifier Output - Output of the internal error amplifier.

Functional Features

  • Low Dropout Voltage: The MC34163DWR2 has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
  • High Output Current Capability: With a maximum output current of 1.5A, this voltage regulator can power a wide range of electronic devices.
  • Adjustable Output Voltage: The output voltage can be adjusted using an external resistor divider network, providing flexibility in meeting specific voltage requirements.
  • Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
  • Short-Circuit Current Limiting: The MC34163DWR2 features short-circuit current limiting to protect the regulator and the connected circuitry from excessive current.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation even with small input-output voltage differentials. - High output current capability allows for powering various electronic devices. - Adjustable output voltage provides flexibility in meeting specific voltage requirements. - Thermal shutdown protection prevents damage due to excessive temperature. - Short-circuit current limiting protects the regulator and connected circuitry.

Disadvantages: - Limited output current compared to some other voltage regulators available in the market. - Requires external components for proper operation and voltage adjustment.

Working Principles

The MC34163DWR2 is a linear voltage regulator that uses an internal error amplifier to compare the feedback voltage (set by an external resistor divider network) with a reference voltage. The error amplifier adjusts the pass transistor's base current to maintain the desired output voltage. The regulator operates in a continuous mode, ensuring a stable output voltage even under varying load conditions.

Detailed Application Field Plans

The MC34163DWR2 is commonly used in various applications, including: - Power supplies for consumer electronics - Automotive electronics - Industrial control systems - Battery-powered devices - Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models to the MC34163DWR2 include: - LM317: A popular adjustable linear voltage regulator with similar characteristics. - LT1083: A high-current adjustable linear voltage regulator suitable for demanding applications. - LM7805: A fixed 5V linear voltage regulator commonly used in low-power applications.

These alternative models offer different features and specifications, allowing designers to choose the most suitable option based on their specific requirements.

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技術ソリューションにおける MC34163DWR2 の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of MC34163DWR2 in technical solutions:

  1. Q: What is MC34163DWR2? A: MC34163DWR2 is a voltage regulator IC (integrated circuit) that can regulate input voltages ranging from 3V to 40V down to a fixed output voltage.

  2. Q: What are the typical applications of MC34163DWR2? A: MC34163DWR2 is commonly used in various technical solutions such as power supplies, battery chargers, motor control circuits, and LED drivers.

  3. Q: What is the maximum output current of MC34163DWR2? A: The maximum output current of MC34163DWR2 is 1.5A, which makes it suitable for many low to medium power applications.

  4. Q: Can MC34163DWR2 handle both step-up and step-down voltage regulation? A: No, MC34163DWR2 is primarily designed for step-down (buck) voltage regulation. For step-up (boost) applications, a different IC would be required.

  5. Q: What is the input voltage range for MC34163DWR2? A: MC34163DWR2 can accept input voltages ranging from 3V to 40V, making it compatible with a wide range of power sources.

  6. Q: Does MC34163DWR2 require any external components for operation? A: Yes, MC34163DWR2 requires a few external components such as capacitors, resistors, and an inductor to form a complete voltage regulation circuit.

  7. Q: Is MC34163DWR2 capable of providing a stable output voltage? A: Yes, MC34163DWR2 has built-in feedback control mechanisms that help maintain a stable output voltage even under varying load conditions.

  8. Q: Can MC34163DWR2 handle high-frequency switching? A: Yes, MC34163DWR2 is designed to operate at high switching frequencies, typically in the range of tens to hundreds of kilohertz.

  9. Q: What are the thermal considerations for MC34163DWR2? A: MC34163DWR2 has built-in thermal shutdown protection to prevent overheating. Adequate heat sinking and proper PCB layout should be considered for efficient heat dissipation.

  10. Q: Is MC34163DWR2 available in different package options? A: Yes, MC34163DWR2 is available in various package options, including SOIC (Small Outline Integrated Circuit) and PDIP (Plastic Dual In-line Package), providing flexibility for different application requirements.

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