Overview
The MC78M15BDT is a 15V, 500mA positive voltage regulator manufactured by onsemi. This device is part of the MC78M00 series, which is similar to the popular MC7800 series but specified for half the output current. It is designed for local, on-card voltage regulation and is known for its ruggedness and reliability under various operating conditions.
Key Specifications
| Characteristics | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 14.4 | 15 | 15.6 | Vdc |
| Output Voltage Variation | VO | 14.25 | - | 15.75 | Vdc |
| Line Regulation | Regline | - | 10 | 50 | mV |
| Load Regulation | Regload | - | 30 | 400 | mV |
| Peak Output Current | IO | - | 700 | - | mA |
| Input Voltage Range | VI | 17.5 | - | 30 | Vdc |
| Operating Junction Temperature Range | TJ | -40 | - | 125 | °C |
| Storage Temperature Range | Tstg | -65 | - | 150 | °C |
| Thermal Resistance, Junction-to-Air | θJA | - | 92 | - | °C/W |
| Thermal Resistance, Junction-to-Case | θJC | - | 5.0 | - | °C/W |
Key Features
- No External Components Required: The MC78M15BDT operates without the need for external components, simplifying the design process.
- Internal Thermal Overload Protection: This feature protects the device from overheating, ensuring reliable operation.
- Internal Short Circuit Current Limiting: The device includes internal current limiting to prevent damage from short circuits.
- Output Transistor Safe-Area Compensation: This ensures the output transistor operates within a safe area, enhancing reliability.
- Pb-Free Packages Available: The device is available in lead-free packages, making it compliant with environmental regulations.
Applications
The MC78M15BDT is suitable for various applications requiring local, on-card voltage regulation. These include:
- Industrial Control Systems: For stable voltage supply in industrial automation and control systems.
- Consumer Electronics: In devices such as TVs, audio equipment, and other consumer electronics requiring stable voltage regulation.
- Automotive Systems: For use in automotive electronics where reliable voltage regulation is crucial.
- Medical Devices: In medical equipment that requires stable and regulated voltage supplies.
Q & A
- What is the output voltage of the MC78M15BDT?
The output voltage of the MC78M15BDT is 15V, with a typical value of 15V and a range of 14.4V to 15.6V at TJ = 25°C.
- What is the maximum output current of the MC78M15BDT?
The maximum output current is 500mA, with a peak output current of up to 700mA.
- What is the input voltage range for the MC78M15BDT?
The input voltage range is from 17.5V to 30V.
- Does the MC78M15BDT require external components to operate?
No, the MC78M15BDT does not require external components to operate.
- What kind of thermal protection does the MC78M15BDT have?
The device includes internal thermal overload protection.
- Is the MC78M15BDT available in Pb-free packages?
- What is the thermal resistance, junction-to-air for the MC78M15BDT?
The thermal resistance, junction-to-air (θJA) is 92°C/W.
- What is the operating junction temperature range for the MC78M15BDT?
The operating junction temperature range is from -40°C to 125°C.
- What is the storage temperature range for the MC78M15BDT?
The storage temperature range is from -65°C to 150°C.
- What are some common applications for the MC78M15BDT?
