MC7905ACD2TR4G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • Fixed output voltage of -5V
  • Low dropout voltage
  • Thermal shutdown protection
  • Short circuit current limiting
• Package: D2PAK-3
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: -7V to -35V
• Output Voltage: -5V
• Output Current: Up to 1A
• Dropout Voltage: 2V (maximum)
• Line Regulation: 0.2% (typical)
• Load Regulation: 0.4% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MC7905ACD2TR4G has three pins: 1. Input Pin (IN): Connects to the input voltage source. 2. Ground Pin (GND): Connected to the ground reference. 3. Output Pin (OUT): Provides the regulated -5V output.

Functional Features

• Voltage Regulation: The MC7905ACD2TR4G maintains a constant -5V output voltage regardless of changes in the input voltage or load conditions.
• Thermal Shutdown Protection: If the temperature exceeds the safe operating limit, the device shuts down to prevent damage.
• Short Circuit Current Limiting: In case of a short circuit, the device limits the output current to protect itself and the connected components.

Advantages

• Stable Output: The MC7905ACD2TR4G provides a stable -5V output, ensuring reliable operation of downstream components.
• Easy to Use: With its fixed output voltage, the regulator simplifies circuit design and eliminates the need for external voltage dividers.
• Thermal Protection: The thermal shutdown feature protects the device from overheating, enhancing its reliability.

Disadvantages

• Limited Output Current: The MC7905ACD2TR4G can supply a maximum output current of 1A, which may not be sufficient for high-power applications.
• Dropout Voltage: The regulator requires a minimum input-output voltage difference of 2V to maintain regulation, which may limit its use in low voltage applications.

Working Principles

The MC7905ACD2TR4G is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor's resistance to maintain a constant -5V output.

Detailed Application Field Plans

The MC7905ACD2TR4G is commonly used in various electronic devices and systems, including: - Power supplies for audio amplifiers - Battery chargers - Industrial control systems - Automotive electronics - Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models to the MC7905ACD2TR4G include: - LM340-5: Fixed -5V voltage regulator by Texas Instruments - L4940V5: 5V fixed voltage regulator by STMicroelectronics - UA7905: Negative voltage regulator by Fairchild Semiconductor - NCV7905: -5V voltage regulator by ON Semiconductor

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