Viz Specifikace pro podrobnosti o produktu.
L4938EDTR-E
Product Overview
Category
L4938EDTR-E belongs to the category of voltage regulators.
Use
It is primarily used for regulating voltage in electronic circuits.
Characteristics
- High precision and stability
- Low dropout voltage
- Wide input voltage range
- Overcurrent and thermal protection
- Adjustable output voltage
Package
L4938EDTR-E comes in a small outline package (SOP) with 8 pins.
Essence
The essence of L4938EDTR-E lies in its ability to provide a stable and regulated output voltage, ensuring proper functioning of electronic devices.
Packaging/Quantity
L4938EDTR-E is typically packaged in reels containing a quantity of 2500 units.
Specifications
- Input Voltage Range: 4.5V to 40V
- Output Voltage Range: 1.2V to 37V
- Dropout Voltage: 0.45V at 1A
- Output Current: Up to 1.5A
- Quiescent Current: 50µA
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
- GND (Ground)
- Vout (Output Voltage)
- Vin (Input Voltage)
- NC (No Connection)
- NC (No Connection)
- NC (No Connection)
- NC (No Connection)
- ADJ (Adjustment)
Functional Features
- Overcurrent Protection: The regulator shuts down when the output current exceeds a certain threshold.
- Thermal Protection: It prevents the device from overheating by shutting down when the temperature exceeds a safe limit.
- Adjustable Output Voltage: The output voltage can be adjusted using an external resistor.
Advantages
- High precision and stability ensure reliable voltage regulation.
- Low dropout voltage minimizes power dissipation.
- Wide input voltage range allows for versatile applications.
- Overcurrent and thermal protection enhance the safety of the circuit.
Disadvantages
- Limited output current capacity (up to 1.5A).
- Requires an external resistor for adjusting the output voltage.
Working Principles
L4938EDTR-E operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The regulator compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.
Detailed Application Field Plans
L4938EDTR-E finds applications in various electronic devices and systems, including: - Power supplies - Battery chargers - Automotive electronics - Industrial control systems - Audio amplifiers - LED lighting
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to L4938EDTR-E are: - LM317 - LM7805 - LT1083 - LM1117 - TPS7A4700
These models offer similar functionality and can be used as substitutes depending on specific requirements.
Word count: 346 words
Seznam 10 běžných otázek a odpovědí souvisejících s aplikací L4938EDTR-E v technických řešeních
What is the maximum input voltage for L4938EDTR-E?
- The maximum input voltage for L4938EDTR-E is 40V.What is the typical output current of L4938EDTR-E?
- The typical output current of L4938EDTR-E is 3A.Can L4938EDTR-E be used in automotive applications?
- Yes, L4938EDTR-E is suitable for automotive applications.What is the operating temperature range of L4938EDTR-E?
- The operating temperature range of L4938EDTR-E is -40°C to 150°C.Does L4938EDTR-E have built-in overcurrent protection?
- Yes, L4938EDTR-E features built-in overcurrent protection.Is L4938EDTR-E compatible with low ESR ceramic capacitors?
- Yes, L4938EDTR-E is compatible with low ESR ceramic capacitors.Can L4938EDTR-E be used in industrial control systems?
- Yes, L4938EDTR-E is suitable for use in industrial control systems.What is the typical dropout voltage of L4938EDTR-E?
- The typical dropout voltage of L4938EDTR-E is 0.5V at 1A.Does L4938EDTR-E require an external compensation network?
- No, L4938EDTR-E does not require an external compensation network.Is L4938EDTR-E available in a surface-mount package?
- Yes, L4938EDTR-E is available in a surface-mount package.