사양
| 속성 | 가치 |
| Package | Tube |
| ProductStatus | Obsolete |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.2V |
| Voltage-Output(Max) | 37V |
| Current-Output | 1.5A |
| Current-Quiescent(Iq) | 10 mA |
| PSRR | 80dB ~ 65dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Through Hole |
| Package/Case | TO-220-3 |
개요
Description
The LM317BT is a popular adjustable voltage regulator used in electronic circuits for maintaining a stable output voltage. Typically packaged in a TO-220 form, it can deliver an output current of up to 1.5A with an input voltage ranging from 3V to 40V. The output voltage is adjustable between 1.25V and 37V, set by two external resistors in a voltage divider configuration. Its ease of use, reliability, and adjustable output make it suitable for a variety of applications, including power supplies and battery chargers. Additional features include thermal overload protection, short circuit protection, and safe area compensation, which enhance its durability and performance. Due to its versatility, the LM317BT is widely utilized in hobbyist and professional electronics projects alike.
Equivalent
The LM317BT is a voltage regulator IC, and its equivalent products include:
1. LM317T
2. UA7805
3. L78S05
4. LM1086
5. LM1117
6. NTE956
7. TL783
These alternatives typically offer similar functionality, adjustable output voltage, and dropout characteristics. When selecting an equivalent, always check the datasheet for specific electrical specifications and compatibility with your application.
1. LM317T
2. UA7805
3. L78S05
4. LM1086
5. LM1117
6. NTE956
7. TL783
These alternatives typically offer similar functionality, adjustable output voltage, and dropout characteristics. When selecting an equivalent, always check the datasheet for specific electrical specifications and compatibility with your application.
Features
The LM317BT is a versatile linear voltage regulator from the LM317 series, designed to provide an adjustable output voltage. Key features include:
1. Adjustable Output Voltage: It can regulate output voltage from 1.25V to 37V, allowing flexibility across various applications.
2. Output Current: The device can deliver a maximum output current of 1.5A, suitable for moderate power applications.
3. Line Regulation: Offers excellent line regulation, typically 0.01%/V, ensuring stable output despite fluctuations in input voltage.
4. Load Regulation: It provides good load regulation, typically 0.1%, maintaining consistent output with varying load conditions.
5. Thermal Overload Protection: Equipped with internal thermal overload protection to prevent overheating and damage.
6. Short-Circuit Protection: Features current limiting protection to safeguard against short-circuit conditions.
7. Safe Area Protection: Ensures reliable operation over a wide range of conditions.
8. Package Type: Housed in a TO-220 package, facilitating heat dissipation and easy mounting.
These features make the LM317BT suitable for applications requiring a stable and adjustable power supply.
1. Adjustable Output Voltage: It can regulate output voltage from 1.25V to 37V, allowing flexibility across various applications.
2. Output Current: The device can deliver a maximum output current of 1.5A, suitable for moderate power applications.
3. Line Regulation: Offers excellent line regulation, typically 0.01%/V, ensuring stable output despite fluctuations in input voltage.
4. Load Regulation: It provides good load regulation, typically 0.1%, maintaining consistent output with varying load conditions.
5. Thermal Overload Protection: Equipped with internal thermal overload protection to prevent overheating and damage.
6. Short-Circuit Protection: Features current limiting protection to safeguard against short-circuit conditions.
7. Safe Area Protection: Ensures reliable operation over a wide range of conditions.
8. Package Type: Housed in a TO-220 package, facilitating heat dissipation and easy mounting.
These features make the LM317BT suitable for applications requiring a stable and adjustable power supply.
Pinout
The LM317BT is a popular adjustable voltage regulator used for voltage regulation in electronic circuits. It typically comes in a TO-220 package and has three pins:
1. Input (IN): This pin receives the unregulated input voltage, which can range from 3V to 40V.
2. Output (OUT): The regulated output voltage is provided through this pin. The voltage level is adjustable from 1.25V to 37V, depending on the external resistor configuration.
3. Adjust (ADJ): This pin is used to set the output voltage. By connecting a pair of resistors between the output and adjust pins, users can determine the desired output voltage.
The LM317BT can deliver an output current of up to 1.5A and features internal current limiting, thermal overload protection, and safe area compensation, making it robust and reliable for various applications.
1. Input (IN): This pin receives the unregulated input voltage, which can range from 3V to 40V.
2. Output (OUT): The regulated output voltage is provided through this pin. The voltage level is adjustable from 1.25V to 37V, depending on the external resistor configuration.
3. Adjust (ADJ): This pin is used to set the output voltage. By connecting a pair of resistors between the output and adjust pins, users can determine the desired output voltage.
The LM317BT can deliver an output current of up to 1.5A and features internal current limiting, thermal overload protection, and safe area compensation, making it robust and reliable for various applications.
Manufacturer
The LM317BT is a voltage regulator, and it is manufactured by several companies, including Texas Instruments and ON Semiconductor. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, and they are one of the largest semiconductor manufacturers in the world. ON Semiconductor, now known as onsemi, is also a prominent American semiconductor supplier that focuses on energy-efficient electronics and solutions for automotive, industrial, and consumer applications.
Both companies are well-established in the semiconductor industry, providing a wide range of components for various electronic applications. They specialize in creating products that support advancements in technology, including power management, analog devices, and signal processing.
Both companies are well-established in the semiconductor industry, providing a wide range of components for various electronic applications. They specialize in creating products that support advancements in technology, including power management, analog devices, and signal processing.
Application
The LM317BT is a versatile three-terminal adjustable voltage regulator used in various applications. It is commonly employed in power supply circuits to provide a stable output voltage ranging from 1.25V to 37V, making it ideal for battery chargers, adjustable power supplies, and voltage reference circuits. Additionally, it is used in current regulation applications, such as LED drivers and constant current sources. The LM317BT is also popular in hobbyist and DIY projects for building custom voltage regulation solutions due to its ease of use and reliable performance. Its robust features and thermal protection make it suitable for consumer electronics, industrial, and automotive applications.
Package
The LM317BT is a voltage regulator typically available in a TO-220 package. The TO-220 is a type of package commonly used for power semiconductors, featuring a metal tab for heat dissipation and three leads for electrical connections.
