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L7808CD2T-TR
Product Overview
Category
L7808CD2T-TR belongs to the category of voltage regulators.
Use
It is primarily used to regulate and stabilize voltage in electronic circuits.
Characteristics
- Input Voltage Range: 10V - 35V
- Output Voltage: 8V
- Maximum Output Current: 1.5A
- Dropout Voltage: 2V
- Operating Temperature Range: -40°C to +125°C
- Package Type: D2PAK
- Mounting Style: Surface Mount
- RoHS Compliant: Yes
Packaging/Quantity
The L7808CD2T-TR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.
Specifications
- Input Voltage Range: 10V - 35V
- Output Voltage: 8V
- Output Current: Up to 1.5A
- Dropout Voltage: 2V (maximum)
- Line Regulation: 0.04% (typical)
- Load Regulation: 0.3% (typical)
- Ripple Rejection Ratio: 62dB (typical)
- Quiescent Current: 6mA (typical)
- Thermal Shutdown Protection: Yes
- Short Circuit Protection: Yes
Pin Configuration
The L7808CD2T-TR has three pins:
- Input Pin (VIN): Connects to the input voltage source.
- Ground Pin (GND): Connected to the ground reference.
- Output Pin (VOUT): Provides the regulated output voltage.
Functional Features
- Voltage Regulation: The L7808CD2T-TR ensures a stable output voltage of 8V, regardless of variations in the input voltage.
- Overcurrent Protection: It incorporates short circuit protection, preventing damage to the device and the connected circuit in case of a short circuit.
- Thermal Shutdown Protection: The regulator has built-in thermal shutdown protection, which activates when the temperature exceeds the safe operating limit, preventing overheating and potential damage.
Advantages and Disadvantages
Advantages
- Wide input voltage range allows for flexibility in various applications.
- High output current capability of up to 1.5A.
- Excellent line and load regulation characteristics ensure stable performance.
- Built-in overcurrent and thermal shutdown protection enhance reliability and safety.
Disadvantages
- Dropout voltage of 2V may limit its use in low voltage applications.
- Higher quiescent current compared to some other voltage regulators may impact power efficiency in certain scenarios.
Working Principles
The L7808CD2T-TR is a linear voltage regulator that utilizes a series pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage from a voltage divider network. Any difference between the two voltages is amplified and used to control the series pass transistor, adjusting its resistance to maintain a constant output voltage.
Detailed Application Field Plans
The L7808CD2T-TR finds application in various electronic devices and systems, including but not limited to: - Power supplies for industrial equipment - Automotive electronics - Audio amplifiers - Battery charging circuits - Embedded systems - Consumer electronics
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to the L7808CD2T-TR include: - LM7808: A popular general-purpose voltage regulator with similar specifications. - MC7808: Another widely used voltage regulator offering comparable performance. - UA7808: A low dropout voltage regulator suitable for low voltage applications.
These alternative models provide similar functionality and can be used as substitutes depending on specific requirements.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de L7808CD2T-TR en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of L7808CD2T-TR in technical solutions:
Q: What is the L7808CD2T-TR? A: The L7808CD2T-TR is a voltage regulator IC that provides a fixed output voltage of +8V.
Q: What is the input voltage range for the L7808CD2T-TR? A: The input voltage range for the L7808CD2T-TR is typically between 10V and 35V.
Q: What is the maximum output current of the L7808CD2T-TR? A: The maximum output current of the L7808CD2T-TR is 1.5A.
Q: Can the L7808CD2T-TR be used to regulate negative voltages? A: No, the L7808CD2T-TR can only regulate positive voltages.
Q: Is the L7808CD2T-TR suitable for battery-powered applications? A: Yes, the L7808CD2T-TR can be used in battery-powered applications as long as the input voltage is within the specified range.
Q: Does the L7808CD2T-TR require any external components for operation? A: Yes, the L7808CD2T-TR requires input and output capacitors for stability and filtering.
Q: Can the L7808CD2T-TR handle high temperatures? A: The L7808CD2T-TR has a maximum operating temperature of 125°C, so it can handle relatively high temperatures.
Q: Can multiple L7808CD2T-TR regulators be connected in parallel to increase the output current? A: Yes, multiple L7808CD2T-TR regulators can be connected in parallel to increase the overall output current.
Q: What is the dropout voltage of the L7808CD2T-TR? A: The dropout voltage of the L7808CD2T-TR is typically around 2V.
Q: Can the L7808CD2T-TR be used in automotive applications? A: Yes, the L7808CD2T-TR is suitable for automotive applications as it meets the necessary standards and requirements.
Please note that these answers are general and may vary depending on specific application requirements and conditions. It's always recommended to refer to the datasheet and consult with an expert when designing technical solutions.