Overview
The MC7812CD2TR4 is a fixed-voltage regulator produced by ON Semiconductor. It is part of the MC78XX series, which are monolithic integrated circuits designed as fixed-voltage regulators for a wide variety of applications. This specific model is configured to provide a stable output voltage of 12 volts and is capable of handling high current demands up to 1 ampere. The MC7812CD2TR4 is known for its reliability, low dropout voltage, and robust thermal performance, making it suitable for use in various electronic systems that require stable voltage regulation.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | 11.5 | 12 | 12.5 | Vdc |
| Input Voltage (Max) | 35 | Vdc | ||
| Output Current (Max) | 1.0 | A | ||
| Dropout Voltage (IO = 1.0 A, TJ = 25°C) | 2.0 | Vdc | ||
| Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz) | 10 | μV/VO | ||
| Output Resistance (f = 1.0 kHz) | 0.9 | mΩ | ||
| Short Circuit Current Limit (TA = 25°C, Vin = 35 Vdc) | 0.2 | A | ||
| Peak Output Current (TJ = 25°C) | 2.2 | A | ||
| Average Temperature Coefficient of Output Voltage | -0.8 | mV/°C |
Key Features
- Fixed Output Voltage: Provides a stable output voltage of 12 volts.
- High Current Capability: Can handle output currents up to 1 ampere.
- Low Dropout Voltage: Dropout voltage of 2.0 Vdc at 1.0 A output current.
- Low Output Noise: Output noise voltage of 10 μV/VO over the frequency range of 10 Hz to 100 kHz.
- High Ripple Rejection: Effective ripple rejection ratio, ensuring stable output voltage under varying input conditions.
- Thermal Stability: Robust thermal performance with an average temperature coefficient of output voltage.
- Short Circuit Protection: Built-in short circuit current limit to protect the device from overcurrent conditions.
Applications
- Power Supplies: Used in various power supply designs to provide stable and regulated output voltages.
- Electronic Systems: Suitable for use in electronic systems that require reliable voltage regulation, such as in industrial control systems, medical devices, and consumer electronics.
- Automotive Systems: Can be used in automotive applications where stable voltage regulation is critical.
- Telecommunications: Used in telecommunications equipment to ensure stable power supply to sensitive components.
Q & A
- What is the output voltage of the MC7812CD2TR4?
The output voltage of the MC7812CD2TR4 is 12 volts.
- What is the maximum input voltage for the MC7812CD2TR4?
The maximum input voltage for the MC7812CD2TR4 is 35 Vdc.
- What is the maximum output current of the MC7812CD2TR4?
The maximum output current of the MC7812CD2TR4 is 1.0 ampere.
- What is the dropout voltage of the MC7812CD2TR4 at 1.0 A output current?
The dropout voltage of the MC7812CD2TR4 at 1.0 A output current is 2.0 Vdc.
- What is the output noise voltage of the MC7812CD2TR4?
The output noise voltage of the MC7812CD2TR4 is 10 μV/VO over the frequency range of 10 Hz to 100 kHz.
- What is the output resistance of the MC7812CD2TR4 at 1.0 kHz?
The output resistance of the MC7812CD2TR4 at 1.0 kHz is 0.9 mΩ.
- Does the MC7812CD2TR4 have short circuit protection?
Yes, the MC7812CD2TR4 has a built-in short circuit current limit to protect the device from overcurrent conditions.
- What is the peak output current of the MC7812CD2TR4?
The peak output current of the MC7812CD2TR4 is 2.2 amperes.
- What is the average temperature coefficient of output voltage for the MC7812CD2TR4?
The average temperature coefficient of output voltage for the MC7812CD2TR4 is -0.8 mV/°C.
- In what types of applications is the MC7812CD2TR4 commonly used?
The MC7812CD2TR4 is commonly used in power supplies, electronic systems, automotive systems, and telecommunications equipment.
