Overview
The MC7805CD2TR4 is a fixed-voltage regulator from onsemi, designed to provide a stable 5V output voltage. This monolithic integrated circuit is part of the 78XX series, known for its reliability and versatility in various electronic applications. The MC7805CD2TR4 is suitable for use in a wide range of systems requiring a regulated 5V supply, including consumer electronics, industrial control systems, and automotive applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 4.8 | 5.0 | 5.2 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | VO | 4.75 | 5.0 | 5.25 | Vdc |
| Line Regulation (7.5 Vdc ≤ Vin ≤ 20 Vdc, IO = 1.0 A) | Regline | - | 0.5 | 1.3 | mV |
| Load Regulation (5.0 mA ≤ IO ≤ 1.0 A) | Regload | - | 0.15 | 1.3 | mV |
| Quiescent Current | IB | 3.2 | 6.5 | - | mA |
| Peak Output Current (TJ = 25°C) | Imax | - | - | 2.2 | A |
| Average Temperature Coefficient of Output Voltage | TCVO | - | - | -0.3 | mV/°C |
| Dropout Voltage (IO = 1.0 A, TJ = 25°C) | VI - VO | - | - | 2.0 | Vdc |
| Output Noise Voltage (10 Hz ≤ f ≤ 100 kHz) | Vn | - | - | 10 | μV/VO |
| Output Resistance (f = 1.0 kHz) | rO | - | - | 0.9 | mΩ |
| Short Circuit Current Limit (TA = 25°C) | ISC | - | - | 0.2 | A |
Key Features
- Fixed Output Voltage: Provides a stable 5V output voltage.
- High Current Capability: Can supply up to 1.5 A of output current.
- Low Dropout Voltage: Dropout voltage of 2.0 Vdc at IO = 1.0 A.
- Good Line and Load Regulation: Ensures stable output voltage over a range of input voltages and load conditions.
- Low Quiescent Current: Quiescent current of 3.2 mA to 6.5 mA.
- Short Circuit Protection: Includes a short circuit current limit to protect the device.
- Thermal Stability: Average temperature coefficient of output voltage ensures minimal drift with temperature changes.
Applications
- Consumer Electronics: Suitable for use in TVs, radios, and other consumer devices requiring a stable 5V supply.
- Industrial Control Systems: Used in control systems, automation, and industrial instrumentation.
- Automotive Systems: Can be used in automotive electronics where a reliable 5V supply is necessary.
- Embedded Systems: Ideal for microcontroller-based projects and other embedded systems.
- Power Supplies: Can be used as a building block in more complex power supply designs.
Q & A
- What is the output voltage of the MC7805CD2TR4?
The output voltage of the MC7805CD2TR4 is 5V.
- What is the maximum output current of the MC7805CD2TR4?
The maximum output current is 1.5 A.
- What is the dropout voltage of the MC7805CD2TR4?
The dropout voltage is 2.0 Vdc at IO = 1.0 A.
- What is the quiescent current of the MC7805CD2TR4?
The quiescent current ranges from 3.2 mA to 6.5 mA.
- Does the MC7805CD2TR4 have short circuit protection?
Yes, it includes a short circuit current limit.
- What is the average temperature coefficient of output voltage for the MC7805CD2TR4?
The average temperature coefficient of output voltage is -0.3 mV/°C.
- What are some common applications of the MC7805CD2TR4?
Common applications include consumer electronics, industrial control systems, automotive systems, embedded systems, and power supplies.
- What is the input voltage range for the MC7805CD2TR4?
The input voltage range is typically from 7.5 Vdc to 20 Vdc.
- How does the MC7805CD2TR4 handle line and load regulation?
The device ensures good line and load regulation, maintaining a stable output voltage over a range of input voltages and load conditions.
- What is the output noise voltage of the MC7805CD2TR4?
The output noise voltage is 10 μV/VO over the frequency range of 10 Hz to 100 kHz.
