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L7818CV
+Lista de MateriaisIC REG LINEAR 18V 1.5A TO220AB
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FabricanteSTMicroeletrônica
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Peça do Fabricante #L7818CV
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Ficha Técnica L7818CV DataSheet
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Pacote TO-220
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Especificações
| Atributo | Valor |
| Package / Case | Tube |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 35V |
| Voltage - Output (Min/Fixed) | 18V |
| Voltage Dropout (Max) | 2V @ 1A (Typ) |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 8 mA |
| PSRR | 53dB (120Hz) |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | 0°C ~ 125°C |
| Mounting Type | Through Hole |
Visão Geral
Description
To effectively introduce the course, consult the syllabus or official course description provided by the institution. This document typically outlines key details such as the course title, objectives, main topics, prerequisites, and instructor information. It may also detail the format of the class, such as whether it includes lectures, discussions, labs, or online components, and any required materials or textbooks.
For the most accurate and specific information, it is advisable to contact the relevant department or instructor directly, as they can provide insights into the course's content, focus, and expectations.
Equivalent
1. LM7818 by Texas Instruments
2. MC7818 by ON Semiconductor
3. UA7818 by Fairchild Semiconductor
4. KA7818 by Samsung
5. NTE966 by NTE Electronics
These alternatives offer similar functionality and specifications, suitable for use in various voltage regulation applications.
Features
1. Output Voltage: It provides a fixed output voltage of 18V, suitable for applications requiring this specific voltage level.
2. Output Current: Can supply up to 1.5A of load current, making it suitable for medium power applications.
3. Thermal Overload Protection: Includes a thermal shutdown feature to prevent damage due to overheating.
4. Short-circuit Protection: Protects against overcurrent conditions by limiting the output current.
5. Safe Operating Area Protection: Ensures reliable operation within specified conditions.
6. Input Voltage: Requires a higher input voltage than the output, typically a minimum of 20V for proper regulation.
7. Dropout Voltage: Generally around 2V, which is the minimum difference between input and output voltage for it to regulate properly.
This component is widely used in power supplies, battery chargers, and other electronic devices needing stable output voltage.
Pinout
1. Pin 1 (Input): This is the input terminal where the unregulated input voltage is applied. The input voltage must be higher than the desired output voltage, typically by at least 2-3 volts, to ensure proper regulation.
2. Pin 2 (Ground/Common): This pin is connected to the ground reference of both the input and output voltages. It serves as the common ground path for the regulator and the load.
3. Pin 3 (Output): This is the output terminal which provides the regulated +18V output voltage. It is connected to the load.
The L7818CV typically requires external capacitors for stability and noise reduction, with a capacitor on the input side (usually 0.33µF) and another on the output side (commonly 0.1µF).
Manufacturer
Application
1. Power Supply Circuits: Provides stable voltage output for electronic devices and systems.
2. Consumer Electronics: Used in televisions, set-top boxes, and audio equipment.
3. Industrial Controls: Regulates voltage for automation equipment and control systems.
4. Communication Equipment: Ensures reliable voltage levels in telecommunications devices.
5. Automotive Electronics: Powers components like infotainment systems and sensors.
6. Embedded Systems: Provides regulated power to microcontrollers and other components.
Its features like thermal protection and short-circuit protection make it suitable for a wide range of applications.