Overview
The MC7812CD2TR4G is a linear voltage regulator produced by onsemi. This component is part of the MC78XX series, known for its high performance and reliability in voltage regulation applications. The MC7812CD2TR4G is specifically designed to provide a stable output voltage of 12 volts, making it suitable for a wide range of electronic systems that require a regulated power supply.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 11.5 | 12 | 12.5 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | VO | 11.4 | 12 | 12.6 | Vdc |
| Line Regulation (TJ = 25°C) | Regline | - | - | 7.5 | mV |
| Load Regulation (TJ = 25°C) | Regload | - | - | 1.6 | mV |
| Quiescent Current | IB | 3.4 | - | 8.0 | mA |
| Dropout Voltage (IO = 1.0 A, TJ = 25°C) | VI - VO | - | - | 2.0 | Vdc |
| 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
- Stable Output Voltage: The MC7812CD2TR4G provides a stable output voltage of 12 volts, ensuring consistent power supply to the connected circuitry.
- High Line and Load Regulation: Excellent line and load regulation capabilities ensure minimal variation in output voltage despite changes in input voltage or load current.
- Low Dropout Voltage: A dropout voltage of 2.0 Vdc at 1.0 A output current minimizes power loss and heat generation.
- Low Output Noise: The component features low output noise, making it suitable for applications requiring high signal integrity.
- Short Circuit Protection: Built-in short circuit current limit protects the device from damage due to overcurrent conditions.
- Wide Operating Temperature Range: The device operates over a junction temperature range of 0°C to 125°C, making it versatile for various environmental conditions.
Applications
- Power Supplies: Used in linear power supplies to regulate output voltage and ensure stable power delivery.
- Embedded Systems: Suitable for use in embedded systems that require a regulated 12V power supply.
- Industrial Control Systems: Employed in industrial control systems where stable voltage is crucial for reliable operation.
- Consumer Electronics: Found in various consumer electronics such as audio equipment, medical devices, and other applications requiring regulated power.
Q & A
- What is the output voltage of the MC7812CD2TR4G?
The output voltage of the MC7812CD2TR4G is 12 volts.
- What is the typical quiescent current of the MC7812CD2TR4G?
The typical quiescent current is 3.4 mA.
- What is the dropout voltage of the MC7812CD2TR4G at 1.0 A output current?
The dropout voltage is 2.0 Vdc at 1.0 A output current.
- Does the MC7812CD2TR4G have short circuit protection?
Yes, it has built-in short circuit current limit protection.
- What is the operating temperature range of the MC7812CD2TR4G?
The operating temperature range is from 0°C to 125°C.
- What is the peak output current of the MC7812CD2TR4G?
The peak output current is 2.2 A.
- What is the output noise voltage of the MC7812CD2TR4G?
The output noise voltage is 10 μV/VO at 10 Hz to 100 kHz.
- What is the line regulation of the MC7812CD2TR4G?
The line regulation is typically 7.5 mV.
- What is the load regulation of the MC7812CD2TR4G?
The load regulation is typically 1.6 mV.
- What are some common applications of the MC7812CD2TR4G?
Common applications include power supplies, embedded systems, industrial control systems, and consumer electronics.
