Overview
The MC7815BT is a monolithic integrated circuit designed as a fixed-voltage regulator, produced by ON Semiconductor. This device is part of the MC78XX series, which is widely used for local, on-card voltage regulation. The MC7815BT 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.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 14.4 | 15 | 15.6 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | VO | 14.25 | 15 | 15.75 | Vdc |
| Line Regulation (TJ = 25°C) | Regline | - | 3.0 | 300 | mV |
| Load Regulation (5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C) | Regload | - | - | - | mV |
| Peak Output Current (TJ = 25°C) | Imax | - | - | 2.2 | A |
| Average Temperature Coefficient of Output Voltage | TCVO | - | -0.8 | - | mV/°C |
| 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 thermal overload protection and short circuit current limiting.
- Output transistor safe-area compensation.
- Output voltage offered in 1.5%, 2%, and 4% tolerance.
- Available in surface mount D2PAK-3, DPAK-3, and standard 3-lead transistor packages.
- NCV prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q100 qualified.
Applications
The MC7815BT is suitable for a wide variety of applications, including:
- Local, on-card voltage regulation.
- Power supplies for electronic equipment.
- Automotive systems (NCV prefix models).
- Industrial control systems.
- Consumer electronics.
Q & A
- What is the typical output voltage of the MC7815BT?
The typical output voltage of the MC7815BT is 15 Vdc.
- What is the maximum output current of the MC7815BT?
The MC7815BT can deliver output currents in excess of 1.0 A with adequate heatsinking.
- Does the MC7815BT require external components for operation?
No, the MC7815BT does not require external components for operation.
- What kind of thermal protection does the MC7815BT have?
The MC7815BT has internal thermal overload protection.
- What is the average temperature coefficient of output voltage for the MC7815BT?
The average temperature coefficient of output voltage (TCVO) is -0.8 mV/°C.
- What is the short circuit current limit for the MC7815BT?
The short circuit current limit (ISC) at TA = 25°C is 0.2 A.
- In what packages is the MC7815BT available?
The MC7815BT is available in surface mount D2PAK-3, DPAK-3, and standard 3-lead transistor packages.
- Is the MC7815BT suitable for automotive applications?
- What is the line regulation of the MC7815BT?
The line regulation (Regline) at TJ = 25°C is typically 3.0 mV.
- What is the load regulation of the MC7815BT?
The load regulation (Regload) for 5.0 mA ≤ IO ≤ 1.5 A at TJ = 25°C is specified but varies based on the input voltage and current conditions.
