Overview
The MC7815ECT is a three-terminal positive linear voltage regulator from onsemi, designed for local, on-card voltage regulation. It is part of the MC7800 series but specified for half the output current, making it suitable for applications requiring up to 500 mA of output current. This regulator is known for its ruggedness and reliability under various operating conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (TJ = 25°C) | 14.4 - 15.6 | Vdc |
| Output Current | Up to 500 mA | A |
| Input Voltage Range | 17.5 - 30 Vdc | Vdc |
| Operating Temperature Range | 0°C to +125°C (for MC7815C), -40°C to +125°C (for MC7815B) | °C |
| Package Type | DPAK-3, TO-220-3 | |
| Line Regulation | Typically 8.5 mV (for MC7815B) | mV |
| Thermal Overload Protection | Yes | |
| Short Circuit Current Limiting | Yes | |
| Output Transistor Safe-Area Compensation | Yes |
Key Features
- No external components required for operation.
- Internal thermal overload protection and short circuit current limiting.
- Output transistor safe-area compensation.
- High accuracy output voltage available (e.g., +/-2% for certain models).
- Pb-free packages available.
- Internal current limiting and safe-area compensation for the internal pass transistor.
Applications
The MC7815ECT is suitable for a wide variety of applications, including:
- Local, on-card voltage regulation in industrial and commercial systems.
- Power supplies for electronic equipment.
- Battery chargers and power management systems.
- Aerospace and automotive systems where reliable voltage regulation is critical.
Q & A
- What is the maximum output current of the MC7815ECT?
The maximum output current is up to 500 mA with adequate heatsinking.
- What are the available output voltages for the MC7815ECT?
The MC7815ECT is specifically designed to provide a fixed output voltage of 15 V.
- Does the MC7815ECT require external components for operation?
No, the MC7815ECT does not require external components for operation.
- What is the operating temperature range for the MC7815ECT?
The operating temperature range is 0°C to +125°C for the MC7815C and -40°C to +125°C for the MC7815B.
- Does the MC7815ECT have thermal overload protection?
Yes, the MC7815ECT includes internal thermal overload protection.
- What types of packages are available for the MC7815ECT?
The MC7815ECT is available in DPAK-3 and TO-220-3 packages.
- Is the MC7815ECT suitable for high-reliability applications?
Yes, the MC7815ECT is designed with features such as internal current limiting, thermal shutdown, and safe-area compensation, making it suitable for high-reliability applications.
- Can the MC7815ECT be used in adjustable voltage configurations?
Although primarily designed as a fixed voltage regulator, the MC7815ECT can be used with external components to obtain adjustable voltages and currents.
- What is the typical line regulation of the MC7815ECT?
The typical line regulation is around 8.5 mV for the MC7815B.
- Is the MC7815ECT Pb-free?
Yes, Pb-free packages are available for the MC7815ECT.
