Overview
The MC7815ACT is a linear voltage regulator produced by ON Semiconductor. It is designed as a fixed-voltage regulator, providing a stable output voltage of 15 volts. This device is part of the 78XX series, known for its reliability and versatility in various electronic applications. The MC7815ACT is a monolithic integrated circuit, containing 22 active transistors, which ensures robust performance and stability across a wide range of operating conditions.
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 | 8.5 | mV |
| Load Regulation (5.0 mA ≤ IO ≤ 1.0 A) | Regload | - | 25 | - | mV |
| Quiescent Current | IB | 3.3 | 6.0 | - | mA |
| Dropout Voltage (IO = 1.0 A, TJ = 25°C) | VI - VO | - | 2.0 | - | V |
| Output Noise Voltage (TA = 25°C) | Vn | - | 10 | - | μV/VO |
| Output Resistance (f = 1.0 kHz) | rO | - | 1.1 | - | mΩ |
| Short Circuit Current Limit (TA = 25°C) | ISC | - | 0.2 | - | A |
| Peak Output Current (TJ = 25°C) | Imax | - | 2.2 | - | A |
| Average Temperature Coefficient of Output Voltage | TCVO | - | -0.8 | - | mV/°C |
Key Features
- Fixed Output Voltage: Provides a stable output voltage of 15 volts.
- High Current Capability: Can supply up to 1.5 amps of output current.
- Low Dropout Voltage: Dropout voltage of 2.0 volts at 1.0 amp output current.
- Good Line and Load Regulation: Ensures stable output voltage across a range of input voltages and load conditions.
- Low Output Noise: Output noise voltage of 10 μV/VO, making it suitable for noise-sensitive applications.
- Short Circuit Protection: Includes a short circuit current limit to protect the device from overcurrent conditions.
- Thermal Stability: Operates reliably over a wide temperature range from 0°C to 125°C.
Applications
- Power Supplies: Used in various power supply designs to provide a stable and regulated output voltage.
- Electronic Instruments: Suitable for use in electronic instruments, such as multimeters, oscilloscopes, and signal generators.
- Industrial Control Systems: Employed in industrial control systems for powering sensors, actuators, and other control devices.
- Consumer Electronics: Found in consumer electronics like audio equipment, televisions, and other household appliances.
- Automotive Systems: Used in automotive systems for powering various electronic components.
Q & A
- What is the output voltage of the MC7815ACT?
The output voltage of the MC7815ACT is 15 volts.
- What is the maximum output current of the MC7815ACT?
The maximum output current of the MC7815ACT is 1.5 amps.
- What is the dropout voltage of the MC7815ACT at 1.0 amp output current?
The dropout voltage of the MC7815ACT at 1.0 amp output current is 2.0 volts.
- How does the MC7815ACT regulate line and load variations?
The MC7815ACT ensures stable output voltage through good line and load regulation, maintaining the output voltage across a range of input voltages and load conditions.
- What is the output noise voltage of the MC7815ACT?
The output noise voltage of the MC7815ACT is 10 μV/VO.
- Does the MC7815ACT have short circuit protection?
Yes, the MC7815ACT includes a short circuit current limit to protect the device from overcurrent conditions.
- What is the operating temperature range of the MC7815ACT?
The operating temperature range of the MC7815ACT is from 0°C to 125°C.
- In what types of applications is the MC7815ACT commonly used?
The MC7815ACT is commonly used in power supplies, electronic instruments, industrial control systems, consumer electronics, and automotive systems.
- How many active transistors does the MC7815ACT contain?
The MC7815ACT contains 22 active transistors.
- What is the quiescent current of the MC7815ACT?
The quiescent current of the MC7815ACT is between 3.3 mA and 6.0 mA.
