Overview
The L7808ABD2T-TR is a three-terminal positive voltage regulator from STMicroelectronics, part of the L78 series. This regulator is available in various packages, including the D²PAK package for this specific model. It is designed to provide stable and regulated output voltage, making it suitable for a wide range of applications. The L7808ABD2T-TR offers a fixed output voltage of 8 volts and can handle input voltages from 10.6 to 21 volts. It features internal current limiting, thermal shut-down, and safe area protection, ensuring robust and reliable operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 7.84 to 8.16 | V |
| Input Voltage Range | 10.6 to 21 | V |
| Output Current | Up to 1.5 A | A |
| Operating Temperature Range | -40 to 125 | °C |
| Output Voltage Tolerance | ±2% | % |
| Dropout Voltage | 2 | V |
| Short Circuit Current | 0.2 A | A |
| Thermal Resistance Junction-Case | 3 | °C/W |
| Thermal Resistance Junction-Ambient | 62.5 | °C/W |
Key Features
- Internal Current Limiting: The regulator has built-in current limiting to prevent excessive current draw.
- Thermal Shut-Down: It features thermal shut-down protection to prevent overheating.
- Safe Area Protection: The device includes safe area protection to ensure operation within safe limits.
- High Accuracy: The output voltage has a tolerance of ±2%, ensuring stable and accurate voltage regulation.
- Low Dropout Voltage: The dropout voltage is 2 volts, which is relatively low, making it efficient in power management.
- Wide Operating Temperature Range: The regulator operates over a temperature range of -40 to 125°C, making it suitable for various environmental conditions.
Applications
The L7808ABD2T-TR is versatile and can be used in a variety of applications, including:
- Local On-Card Regulation: It can provide local voltage regulation on PCBs, eliminating distribution problems associated with single-point regulation.
- Power Supplies: Suitable for use in power supply units where stable and regulated output voltage is required.
- Industrial Control Systems: Can be used in industrial control systems that require reliable and stable voltage regulation.
- Consumer Electronics: Applicable in consumer electronics such as audio equipment, medical devices, and other electronic appliances.
Q & A
- What is the output voltage of the L7808ABD2T-TR?
The output voltage of the L7808ABD2T-TR is 8 volts with a tolerance of ±2%.
- What is the input voltage range for the L7808ABD2T-TR?
The input voltage range is from 10.6 to 21 volts.
- What is the maximum output current of the L7808ABD2T-TR?
The maximum output current is up to 1.5 amps.
- What are the operating temperature ranges for the L7808ABD2T-TR?
The operating temperature range is from -40 to 125°C.
- Does the L7808ABD2T-TR have built-in protection features?
Yes, it has internal current limiting, thermal shut-down, and safe area protection.
- What is the dropout voltage of the L7808ABD2T-TR?
The dropout voltage is 2 volts.
- What is the thermal resistance junction-case for the D²PAK package?
The thermal resistance junction-case is 3°C/W.
- Can the L7808ABD2T-TR be used in industrial applications?
Yes, it is suitable for use in industrial control systems due to its reliability and stable voltage regulation.
- What is the minimum load current required for regulation?
The minimum load current required for regulation is 5 mA.
- Is the L7808ABD2T-TR suitable for consumer electronics?
Yes, it can be used in various consumer electronics that require stable and regulated voltage.
