Overview
The MC7808CDTRKG is a part of the MC7800 Series of positive linear voltage regulators produced by ON Semiconductor. These regulators are monolithic integrated circuits designed to serve as fixed-voltage regulators for a wide range of applications, including local and on-card regulation. They are particularly useful in scenarios where stable voltage output is crucial, and they 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 | 7.7 | 8.0 | 8.3 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | VO | 7.6 | 8.0 | 8.4 | Vdc |
| Line Regulation (TJ = 25°C) | Regline | - | 0.5 | 1.3 | mV |
| Load Regulation (5.0 mA ≤ IO ≤ 1.0 A) | Regload | - | 1.3 | 25 | mV |
| Quiescent Current | IB | - | 3.2 | 8.0 | mA |
| Peak Output Current (TJ = 25°C) | Imax | - | - | 2.2 | A |
| Short Circuit Current Limit (TA = 25°C) | ISC | - | - | 0.2 | A |
| Output Noise Voltage (TA = 25°C) | Vn | - | - | 10 | μV/VO |
| Output Resistance (f = 1.0 kHz) | rO | - | - | 0.9 | mΩ |
| Average Temperature Coefficient of Output Voltage | TCVO | - | - | -0.4 | mV/°C |
Key Features
- High Output Current: Capable of delivering output currents in excess of 1.0 A with adequate heatsinking.
- Internal Current Limiting: Built-in current limiting to protect the device from overcurrent conditions.
- Thermal Shutdown: Automatic shutdown in case of overheating to prevent damage.
- Safe-Area Compensation: Ensures stable operation over a wide range of conditions.
- No External Components Required: Can operate without external components, simplifying circuit design.
- Adjustable Voltage and Current: Can be used with external components to achieve adjustable voltage and current outputs.
Applications
- Local and On-Card Regulation: Ideal for providing stable voltage to components on the same PCB.
- Power Supplies: Used in various power supply designs where a fixed output voltage is required.
- Industrial Control Systems: Suitable for use in industrial control systems that require reliable voltage regulation.
- Consumer Electronics: Found in various consumer electronics where stable power is essential.
- Automotive Systems: Used in automotive systems that require robust and reliable voltage regulation.
Q & A
- What is the output voltage of the MC7808CDTRKG?
The output voltage of the MC7808CDTRKG is 8.0 V, with a range of 7.7 V to 8.3 V at TJ = 25°C.
- What is the maximum output current of the MC7808CDTRKG?
The MC7808CDTRKG can deliver output currents in excess of 1.0 A with adequate heatsinking.
- Does the MC7808CDTRKG require external components to operate?
No, the MC7808CDTRKG can operate without external components, simplifying circuit design.
- What are the key protection features of the MC7808CDTRKG?
The device features internal current limiting, thermal shutdown, and safe-area compensation.
- What is the quiescent current of the MC7808CDTRKG?
The quiescent current (IB) is typically 3.2 mA to 8.0 mA.[
- What is the short circuit current limit of the MC7808CDTRKG?
The short circuit current limit (ISC) is 0.2 A at TA = 25°C.[
- What is the output noise voltage of the MC7808CDTRKG?
The output noise voltage (Vn) is 10 μV/VO at 10 Hz ≤ f ≤ 100 kHz.[
- What is the output resistance of the MC7808CDTRKG?
The output resistance (rO) is 0.9 mΩ at f = 1.0 kHz.[
- What is the average temperature coefficient of output voltage for the MC7808CDTRKG?
The average temperature coefficient of output voltage (TCVO) is -0.4 mV/°C.[
- In what types of applications is the MC7808CDTRKG commonly used?
The MC7808CDTRKG is commonly used in local and on-card regulation, power supplies, industrial control systems, consumer electronics, and automotive systems.
