Overview
The L7808CD2T from STMicroelectronics is a three-terminal positive voltage regulator, part of the L78 series. This component is designed to provide stable and regulated output voltage, making it suitable for a wide range of applications. The L7808CD2T is specifically configured to deliver an output voltage of 8V and can handle up to 1 A of output current. It is available in various packages, including TO-220, TO-220FP, D²PAK, and DPAK, ensuring flexibility in design and implementation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 7.84 - 8.16 | V |
| Output Current | Up to 1.5 A | A |
| Input Voltage Range | 10.5 to 25 V | V |
| Dropout Voltage | 2 V | V |
| Line Regulation | 12 - 80 mV | mV |
| Load Regulation | 25 - 100 mV | mV |
| Quiescent Current | 8 mA | mA |
| Thermal Resistance (Junction to Case) | 3 - 5 °C/W | °C/W |
| Thermal Resistance (Junction to Ambient) | 50 - 62.5 °C/W | °C/W |
| Operating Junction Temperature Range | 0 to 125 °C | °C |
| Storage Temperature Range | -65 to 150 °C | °C |
Key Features
- Fixed Output Voltage: The L7808CD2T provides a stable output voltage of 8V.
- High Output Current: Capable of delivering up to 1.5 A of output current.
- Thermal Overload Protection: Internal thermal shutdown protects the device from overheating.
- Short Circuit Protection: Built-in short circuit current limiting and safe area protection.
- Low Dropout Voltage: Dropout voltage of 2V ensures efficient operation.
- High Accuracy: Output voltage tolerance of ±2% (for A version).
- Wide Operating Temperature Range: Operating junction temperature range from 0 to 125 °C.
- Multiple Package Options: Available in TO-220, TO-220FP, D²PAK, and DPAK packages.
Applications
- Local On-Card Regulation: Useful for eliminating distribution problems associated with single point regulation.
- Power Supplies: Suitable for use in various power supply designs requiring stable and regulated output voltages.
- Industrial Control Systems: Can be used in industrial control systems where reliable voltage regulation is critical.
- Consumer Electronics: Applicable in consumer electronics such as audio equipment, TVs, and other devices requiring stable power supply.
- Automotive Systems: Can be used in automotive systems where robust and reliable voltage regulation is necessary.
Q & A
- What is the output voltage of the L7808CD2T?
The output voltage of the L7808CD2T is 8V.
- What is the maximum output current of the L7808CD2T?
The maximum output current of the L7808CD2T is up to 1.5 A.
- What are the package options available for the L7808CD2T?
The L7808CD2T is available in TO-220, TO-220FP, D²PAK, and DPAK packages.
- Does the L7808CD2T have thermal overload protection?
Yes, the L7808CD2T has internal thermal shutdown protection.
- What is the dropout voltage of the L7808CD2T?
The dropout voltage of the L7808CD2T is 2V.
- What is the operating junction temperature range of the L7808CD2T?
The operating junction temperature range of the L7808CD2T is from 0 to 125 °C.
- Does the L7808CD2T have short circuit protection?
Yes, the L7808CD2T has built-in short circuit current limiting and safe area protection.
- What is the quiescent current of the L7808CD2T?
The quiescent current of the L7808CD2T is approximately 8 mA.
- What is the thermal resistance (junction to case) of the L7808CD2T?
The thermal resistance (junction to case) of the L7808CD2T is between 3 to 5 °C/W depending on the package.
- What are some common applications of the L7808CD2T?
The L7808CD2T is commonly used in power supplies, industrial control systems, consumer electronics, and automotive systems.
