Overview
The MC7815CDT is a monolithic integrated circuit designed as a fixed-voltage regulator by onsemi. This device is part of the 78XX series, which is widely used for local, on-card voltage regulation in various applications. The MC7815CDT is specifically designed to provide a stable output voltage of 15 volts and can deliver output currents in excess of 1.0 A with adequate heatsinking. It features internal current limiting, thermal shutdown, and safe-area compensation, making it a reliable choice for power supply systems.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 14.7 | 15 | 15.3 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | VO | 14.6 | 15 | 15.4 | Vdc |
| Line Regulation (7.5 Vdc ≤ Vin ≤ 20 Vdc, IO = 1.0 A) | Regline | - | 3.8 | 6.0 | mV |
| Load Regulation (5.0 mA ≤ IO ≤ 1.0 A) | Regload | - | 1.6 | 8.1 | mV |
| Quiescent Current | IB | 3.4 | - | 8.0 | mA |
| Peak Output Current (TJ = 25°C) | Imax | - | - | 2.2 | A |
| Average Temperature Coefficient of Output Voltage | TCVO | - | - | -0.8 | mV/°C |
| Dropout Voltage (IO = 1.0 A, TJ = 25°C) | VI - VO | - | - | 2.0 | V |
| Short Circuit Current Limit (TA = 25°C) | ISC | - | - | 0.2 | A |
Key Features
- Output current in excess of 1.0 A with adequate heatsinking.
- No external components required for operation.
- Internal current limiting and thermal shutdown for protection.
- Safe-area compensation to prevent output transistor failure.
- Low dropout voltage of 2.0 V at 1.0 A output current.
- High ripple rejection ratio.
- Low output noise voltage.
- Compact TO-220 and TO-263 packages available.
Applications
- Local, on-card voltage regulation in various electronic systems.
- Power supplies for industrial, automotive, and consumer electronics.
- Regulation of voltage in embedded systems and microcontrollers.
- Use in adjustable voltage regulators with external components.
- Battery chargers and power management systems.
Q & A
- What is the output voltage of the MC7815CDT?
The output voltage of the MC7815CDT is 15 volts.
- What is the maximum output current of the MC7815CDT?
The MC7815CDT can deliver output currents in excess of 1.0 A with adequate heatsinking.
- Does the MC7815CDT require external components for operation?
No, the MC7815CDT does not require external components for operation.
- What are the protective features of the MC7815CDT?
The MC7815CDT features internal current limiting, thermal shutdown, and safe-area compensation.
- What is the dropout voltage of the MC7815CDT?
The dropout voltage of the MC7815CDT is 2.0 V at 1.0 A output current.
- What is the typical quiescent current of the MC7815CDT?
The typical quiescent current of the MC7815CDT is 3.4 mA.
- What is the short circuit current limit of the MC7815CDT?
The short circuit current limit of the MC7815CDT is 0.2 A.
- What are common applications of the MC7815CDT?
Common applications include local, on-card voltage regulation, power supplies, and regulation in embedded systems and microcontrollers.
- What are the available packages for the MC7815CDT?
The MC7815CDT is available in TO-220 and TO-263 packages.
- How does the MC7815CDT handle thermal issues?
The MC7815CDT includes thermal shutdown to protect against overheating.
