Overview
The MC7818CD2TR4G is a fixed-voltage regulator from onsemi, designed to provide a stable output voltage of 18 volts. This monolithic integrated circuit is part of the MC78XX series, known for its reliability and versatility in various electronic applications. The device is capable of delivering output currents in excess of 1.0 A with adequate heatsinking, making it suitable for high-current requirements.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 17.4 | 18 | 18.6 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | VO | 17.3 | 18 | 18.7 | Vdc |
| Input Voltage Range | VI | 20.5 | - | 35 | Vdc |
| Peak Output Current (TJ = 25°C) | Imax | - | - | 2.2 | A |
| Short Circuit Current Limit (TA = 25°C) | ISC | - | - | 0.2 | A |
| 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 | - | - | 1.0 | mΩ |
| Thermal Resistance, Junction-to-Ambient | RJA | - | - | 92 | °C/W |
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.
- Pb-free devices; NCV prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q100 qualified and PPAP capable.
Applications
The MC7818CD2TR4G is suitable for a wide variety of applications, including local, on-card regulation in electronic devices. It can be used in power supplies, battery chargers, and other systems requiring stable voltage regulation. The device is particularly useful in automotive and industrial environments due to its robust features and compliance with automotive standards.
Q & A
- What is the output voltage of the MC7818CD2TR4G?
The output voltage of the MC7818CD2TR4G is 18 volts. - What is the maximum output current of the MC7818CD2TR4G?
The maximum output current is in excess of 1.0 A with adequate heatsinking. - Does the MC7818CD2TR4G require external components for operation?
No, the MC7818CD2TR4G does not require external components for operation. - What are the package options for the MC7818CD2TR4G?
The device is available in surface mount D2PAK-3, DPAK-3, and standard 3-lead transistor packages. - Is the MC7818CD2TR4G Pb-free?
Yes, the MC7818CD2TR4G is a Pb-free device. - What are the thermal protection features of the MC7818CD2TR4G?
The device features internal thermal overload protection and short circuit current limiting. - What is the dropout voltage of the MC7818CD2TR4G?
The dropout voltage is 2.0 Vdc at an output current of 1.0 A and a junction temperature of 25°C. - What is the output noise voltage of the MC7818CD2TR4G?
The output noise voltage is 10 μV/VO at a temperature of 25°C. - What is the thermal resistance, junction-to-ambient, of the MC7818CD2TR4G?
The thermal resistance, junction-to-ambient, is 92 °C/W. - Is the MC7818CD2TR4G AEC-Q100 qualified?
Yes, the MC7818CD2TR4G is AEC-Q100 qualified and PPAP capable.
