Overview
The MC7808ABD2T is a 3-terminal positive voltage regulator produced by onsemi. This component is part of the MC78XX series, known for its reliability and stability in providing a fixed output voltage. The MC7808ABD2T specifically offers an output voltage of 8 volts and is capable of delivering up to 1 ampere of current. It is widely used in various electronic systems that require a stable and regulated voltage supply.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | 7.7 | 8.0 | 8.3 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | 7.6 | 8.0 | 8.4 | Vdc |
| Input Voltage Range | 10.5 | - | 23 | Vdc |
| Line Regulation (TJ = 25°C, IO = 500 mA) | - | - | 10 | mV |
| Load Regulation (5.0 mA ≤ IO ≤ 1.0 A) | - | - | 20 | mV |
| Quiescent Current | 3.2 | - | 8.0 | mA |
| Peak Output Current (TJ = 25°C) | - | - | 2.2 | A |
| Average Temperature Coefficient of Output Voltage | - | - | -0.3 | mV/°C |
Key Features
- Fixed Output Voltage: The MC7808ABD2T provides a stable output voltage of 8 volts.
- High Current Capability: It can deliver up to 1 ampere of current, making it suitable for a variety of applications.
- Line and Load Regulation: The component offers good line and load regulation, ensuring minimal voltage variation under different input and load conditions.
- Thermal Protection: Internal thermal overload protection helps prevent damage due to overheating.
- Short Circuit Protection: The regulator includes short circuit current limiting to protect against overcurrent conditions.
- Compact Package: Available in D2PAK-3 and other compact packages, making it suitable for space-constrained designs.
Applications
- Power Supplies: Used in linear power supplies to regulate output voltage.
- Embedded Systems: Suitable for use in embedded systems requiring a stable voltage supply.
- Industrial Control Systems: Employed in industrial control systems where reliable voltage regulation is crucial.
- Consumer Electronics: Found in various consumer electronics such as audio equipment, medical devices, and more.
- Automotive Systems: Used in automotive systems that require stable voltage regulation.
Q & A
- What is the output voltage of the MC7808ABD2T?
The output voltage of the MC7808ABD2T is 8 volts.
- What is the maximum current that the MC7808ABD2T can deliver?
The MC7808ABD2T can deliver up to 1 ampere of current.
- What is the input voltage range for the MC7808ABD2T?
The input voltage range for the MC7808ABD2T is from 10.5 Vdc to 23 Vdc.
- Does the MC7808ABD2T have thermal protection?
Yes, the MC7808ABD2T includes internal thermal overload protection.
- What type of package is the MC7808ABD2T available in?
The MC7808ABD2T is available in D2PAK-3 and other compact packages.
- What are some common applications of the MC7808ABD2T?
The MC7808ABD2T is commonly used in power supplies, embedded systems, industrial control systems, consumer electronics, and automotive systems.
- How does the MC7808ABD2T regulate output voltage?
The MC7808ABD2T regulates output voltage through its internal voltage regulation circuitry, ensuring a stable output voltage despite variations in input voltage and load current.
- Does the MC7808ABD2T require external capacitors for stability?
While not strictly necessary for stability, external capacitors can improve the transient response of the regulator.
- What is the quiescent current of the MC7808ABD2T?
The quiescent current of the MC7808ABD2T ranges from 3.2 mA to 8.0 mA.
- How does the MC7808ABD2T protect against short circuits?
The MC7808ABD2T includes short circuit current limiting to protect against overcurrent conditions.
