Overview
The MC7809CD2T is a 1.0 A positive voltage regulator produced by onsemi. This monolithic integrated circuit is designed as a fixed-voltage regulator, suitable for a wide variety of applications, including local and on-card regulation. The device is part of the MC78XX series, which offers reliable and efficient voltage regulation with various output voltages.
The MC7809CD2T specifically provides a regulated output voltage of 9 volts, making it ideal for systems requiring a stable 9V supply. It features internal current limiting, thermal shutdown, and safe-area compensation, ensuring robust operation under different conditions.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 8.65 | 9.0 | 9.35 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | VO | 8.65 | 9.0 | 9.35 | Vdc |
| Line Regulation (TJ = 25°C) | Regline | - | - | 10 | mV |
| Load Regulation | - | - | - | 10 | mV |
| Peak Output Current (TJ = 25°C) | Imax | - | - | 2.2 | A |
| Average Temperature Coefficient of Output Voltage | TCVO | - | - | -0.8 | mV/°C |
| Short Circuit Current Limit (TA = 25°C) | ISC | - | - | 0.2 | A |
| Operating Temperature Range | - | -40°C to +125°C | - | - | °C |
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.
- NCV prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q100 qualified.
Applications
The MC7809CD2T is suitable for a variety of applications, including:
- Local and on-card voltage regulation.
- Power supplies for electronic equipment.
- Automotive systems (NCV prefix models).
- Industrial control systems.
- Consumer electronics requiring stable voltage supplies.
Q & A
- What is the output voltage of the MC7809CD2T?
The output voltage of the MC7809CD2T is 9.0 V, with a tolerance range of 8.65 V to 9.35 V at TJ = 25°C.
- What is the maximum output current of the MC7809CD2T?
The MC7809CD2T can deliver an output current in excess of 1.0 A with adequate heatsinking.
- Does the MC7809CD2T require external components for operation?
No, the MC7809CD2T does not require external components for operation.
- What are the key protection features of the MC7809CD2T?
The device features internal thermal overload protection and short circuit current limiting.
- What are the available package types for the MC7809CD2T?
The MC7809CD2T is available in surface mount D2PAK-3, DPAK-3, and standard 3-lead transistor packages.
- Is the MC7809CD2T suitable for automotive applications?
- What is the operating temperature range of the MC7809CD2T?
The operating temperature range of the MC7809CD2T is -40°C to +125°C.
- How does the MC7809CD2T handle line and load regulation?
The device has specified line and load regulation characteristics, ensuring stable output voltage across different input and load conditions).
- What is the average temperature coefficient of output voltage for the MC7809CD2T?
The average temperature coefficient of output voltage (TCVO) is -0.8 mV/°C).
- What is the short circuit current limit of the MC7809CD2T?
The short circuit current limit (ISC) is 0.2 A at TA = 25°C).
