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TL431ASA-7
+BOMIC VREF SHUNT ADJ 1% SOT23-3
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メーカーアナログ・デバイセズ
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メーカー品番 #TL431ASA-7
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在庫状況8366
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Part Status | Active |
| Reference Type | Shunt |
| Output Type | Adjustable |
| Voltage - Output (Min/Fixed) | 2.495V |
| Current - Output | 100 mA |
| Tolerance | ±1% |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Supplier Device Package | SOT-23-3 |
| Base Product Number | TL431 |
| Current - Cathode | 700 µA |
| Voltage - Output (Max) | 36 V |
概要
Description
The TL431ASA-7 is a precision programmable shunt voltage regulator often used in electronic circuits for voltage reference and regulation. It operates as a Zener diode with an adjustable breakdown voltage, typically ranging from 2.5V to 36V. The device is widely favored for its accuracy, stability, and low-temperature coefficient, making it suitable for applications requiring precise voltage regulation.
Key features include a wide operating current range, typically from 1 mA to 100 mA, and low dynamic output impedance, which enhances its performance as a stable reference. The TL431ASA-7 can be used in various configurations, including as a comparator with a reference, in linear regulators, or in switching power supplies.
Housed in a compact package, it is suitable for space-constrained applications. It is commonly found in power supply circuits, battery chargers, and other electronic designs requiring a reliable reference voltage. Its flexibility and reliability make it a popular choice among engineers for both consumer and industrial applications.
Key features include a wide operating current range, typically from 1 mA to 100 mA, and low dynamic output impedance, which enhances its performance as a stable reference. The TL431ASA-7 can be used in various configurations, including as a comparator with a reference, in linear regulators, or in switching power supplies.
Housed in a compact package, it is suitable for space-constrained applications. It is commonly found in power supply circuits, battery chargers, and other electronic designs requiring a reliable reference voltage. Its flexibility and reliability make it a popular choice among engineers for both consumer and industrial applications.
Equivalent
The TL431ASA-7 is a voltage reference IC. Equivalent products include:
1. LM431
2. TL431 (by other manufacturers)
3. AZ431
4. KA431
5. LMV431
6. AS431
These equivalents have similar functions and can often be used interchangeably, but always verify specific manufacturer datasheets for compatibility in your application.
1. LM431
2. TL431 (by other manufacturers)
3. AZ431
4. KA431
5. LMV431
6. AS431
These equivalents have similar functions and can often be used interchangeably, but always verify specific manufacturer datasheets for compatibility in your application.
Features
The TL431ASA-7 is a precision programmable voltage reference. It offers several key features:
1. Adjustable Output Voltage: The voltage can be set to any level between 2.5V to 36V using two external resistors.
2. Precise Voltage Reference: With a typical accuracy of 1% for the TL431A version, it ensures stable and accurate voltage regulation.
3. Wide Operating Temperature Range: It operates effectively within a temperature range of -40°C to +85°C, making it suitable for various environments.
4. Low Temperature Coefficient: It provides stable performance across temperature variations, contributing to consistent voltage references in dynamic conditions.
5. Low Output Impedance: This feature ensures excellent load regulation, which is critical for maintaining output voltage stability under varying load conditions.
6. Versatile Applications: The TL431ASA-7 can be used in various applications including switching power supplies, voltage monitoring, and precision current limiting circuits.
These features make the TL431ASA-7 a versatile and reliable component for precision voltage reference requirements in electronic circuits.
1. Adjustable Output Voltage: The voltage can be set to any level between 2.5V to 36V using two external resistors.
2. Precise Voltage Reference: With a typical accuracy of 1% for the TL431A version, it ensures stable and accurate voltage regulation.
3. Wide Operating Temperature Range: It operates effectively within a temperature range of -40°C to +85°C, making it suitable for various environments.
4. Low Temperature Coefficient: It provides stable performance across temperature variations, contributing to consistent voltage references in dynamic conditions.
5. Low Output Impedance: This feature ensures excellent load regulation, which is critical for maintaining output voltage stability under varying load conditions.
6. Versatile Applications: The TL431ASA-7 can be used in various applications including switching power supplies, voltage monitoring, and precision current limiting circuits.
These features make the TL431ASA-7 a versatile and reliable component for precision voltage reference requirements in electronic circuits.
Pinout
The TL431ASA-7 is an adjustable precision shunt regulator. It typically comes in a 3-pin package. The three pins are as follows:
1. Reference (Ref): This pin is connected to the internal voltage reference and is used to set the output voltage through an external resistor divider network.
2. Anode (A): This is the ground or negative voltage connection for the device.
3. Cathode (K): This pin functions as the output and connects to the load. It is where the regulated voltage is maintained.
The primary function of the TL431ASA-7 is to provide a stable reference voltage, which can be adjusted using external resistors. It is commonly used in voltage regulation and precision current limiting applications. The device is known for its low temperature coefficient and ease of use in various electronic circuits.
1. Reference (Ref): This pin is connected to the internal voltage reference and is used to set the output voltage through an external resistor divider network.
2. Anode (A): This is the ground or negative voltage connection for the device.
3. Cathode (K): This pin functions as the output and connects to the load. It is where the regulated voltage is maintained.
The primary function of the TL431ASA-7 is to provide a stable reference voltage, which can be adjusted using external resistors. It is commonly used in voltage regulation and precision current limiting applications. The device is known for its low temperature coefficient and ease of use in various electronic circuits.
Manufacturer
The TL431ASA-7 is manufactured by Diodes Incorporated. Diodes Incorporated is a global manufacturer and supplier of high-quality application-specific standard products within the broad discrete, logic, analog, and mixed-signal semiconductor markets. The company serves the consumer electronics, computing, communications, industrial, and automotive markets. Known for its extensive product portfolio and focus on innovation, Diodes Incorporated aims to provide customers with leading-edge technology solutions that enhance performance and energy efficiency.
Application
The TL431ASA-7 is a precision adjustable shunt regulator commonly used in various applications. These include voltage reference and regulation in power supplies, linear regulators, and switching power supplies. It is also utilized in control loops for power supply feedback circuits, adjustable voltage and current regulators, and as a precision comparator. Additionally, the TL431ASA-7 is employed in battery chargers, LED drivers, and over-voltage protection circuits. Its flexibility and accuracy make it suitable for a wide range of electronic and industrial applications requiring stable voltage regulation.
Package
The TL431ASA-7 is typically available in a SOT-23 package. This is a small, surface-mount transistor-outline package commonly used for electronic components like voltage references or regulators.
