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MC7905C
MC7905C is a negative voltage regulator IC with fixed output voltage of -5V and maximum output current of 1A.
MC7905C
MC7905C is a negative voltage regulator IC with fixed output voltage of -5V and maximum output current of 1A.
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MC7905C 數據表
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詳細說明
The MC7905C is a fixed voltage regulator device manufactured by ON Semiconductor. It is a negative voltage regulator with an output voltage of -5 volts and a maximum output current of 1 amp. The regulator is designed to provide a stable and regulated output voltage when connected to a suitable input voltage source.The MC7905C operates over a wide input voltage range, typically from -7 volts to -25 volts, making it suitable for a variety of applications where a negative voltage supply is required. It is housed in a TO-220 package for easy mounting and heat dissipation.The device features built-in thermal shutdown and short-circuit protection mechanisms to ensure safe and reliable operation. It also has a low dropout voltage, which means it can regulate the output voltage even when the input voltage is close to the output voltage.
主要特徵
- Output voltage: -5V
- Maximum input voltage: -35V
- Output current: 1.5A
- Internal thermal overload protection
- Short circuit protection
- Output transistor safe-operating area protection
- Available in TO-220 package
應用
- Industrial power supplies
- Automotive power systems
- Home appliances
- Telecommunication equipment
- Audio and video equipment
- Motor controls
- Medical equipment
- Instrumentation systems
- Robotics
- Consumer electronics
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Manufacturer | onsemi | Product Category ! | Linear Voltage Regulators |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is MC7905C?
The MC7905C is a fixed voltage regulator integrated circuit (IC) designed by ON Semiconductor. It is part of the 79xx series of voltage regulators and provides a fixed output voltage of -5V. The IC is commonly used in electronic circuits to provide a stable negative voltage supply, making it suitable for a wide range of applications including power supplies, instrumentation, and audio equipment.
How Does MC7905C Work?
The MC7905C works by regulating the input voltage to produce a consistent -5V output voltage. It employs internal circuitry to compare the output voltage to a reference voltage and adjust its internal pass transistor to maintain the desired output. This regulation process ensures a stable and accurate negative voltage supply for the connected circuitry.
How Many Pins does MC7905C have and What are the Functions of the Pinout Configuration?
The MC7905C is housed in a standard 3-pin TO-220 package. The pinout configuration includes:
- Input (VIn): Pin for the input voltage.
- Common (COM): Ground reference pin.
- Output (VOut): Pin for the regulated -5V output voltage.
What are the Pros and Cons of MC7905C?
Pros:
- Stable Output: Provides a stable -5V output voltage for powering electronic circuits.
- Simple Design: Easy to use with minimal external components required for basic operation.
- Widely Available: Part of the popular 79xx series, making it readily available and commonly used in various applications.
- Overcurrent Protection: Offers overcurrent protection to safeguard connected devices.
Cons:
- Fixed Output Voltage: The output voltage of -5V is not adjustable, limiting flexibility in some applications.
- Heat Dissipation: May require a heatsink in high-current applications to dissipate heat generated by the regulator.
- Power Loss: The regulator dissipates power as heat, especially when the input voltage is significantly higher than -5V.
Are There Any Equivalents/Alternatives to MC7905C for Recommendation?
- The LM7905 from Texas Instruments is a direct alternative with similar specifications.
- Equivalent parts to the MC7905C include the UA7905 from Fairchild Semiconductor and the L7905 from STMicroelectronics.
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製造商: MOTOROLA 包裝/箱: QFP
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