仕様
| 属性 | 値 |
| Package / Case | Tube |
| Part Status | Active |
| Function | Step-Up, Step-Down |
| Output Configuration | Positive or Negative |
| Topology | Buck, Boost |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 12V |
| Voltage - Output (Min/Fixed) | ±1.2V |
| Voltage - Output (Max) | 30V, -25V |
| Current - Output | 500mA (Switch) |
| Synchronous Rectifier | No |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole |
概要
Description
The TL497ACN is a versatile switching voltage regulator IC designed by Texas Instruments. It is primarily used to convert input voltages into regulated output voltages, suitable for both step-up (boost) and step-down (buck) configurations. The device operates efficiently over a wide input voltage range, typically from 1.5V to 40V, making it ideal for battery-powered applications as well as other electronic devices requiring a stable power supply.
Key features of the TL497ACN include its ability to provide a fixed output voltage or be configured for adjustable outputs using external resistors. Its switching frequency can be adjusted, which allows for optimization between efficiency and size of external components. The IC also includes protection features such as current limiting and thermal shutdown, enhancing its reliability.
The TL497ACN is housed in a standard dual in-line package (DIP), making it easy to integrate into various circuit designs. Its combination of flexibility, efficiency, and protection features make it a popular choice for designers looking to implement cost-effective and reliable power supply solutions.
Key features of the TL497ACN include its ability to provide a fixed output voltage or be configured for adjustable outputs using external resistors. Its switching frequency can be adjusted, which allows for optimization between efficiency and size of external components. The IC also includes protection features such as current limiting and thermal shutdown, enhancing its reliability.
The TL497ACN is housed in a standard dual in-line package (DIP), making it easy to integrate into various circuit designs. Its combination of flexibility, efficiency, and protection features make it a popular choice for designers looking to implement cost-effective and reliable power supply solutions.
Equivalent
The TL497ACN chip, a switching voltage regulator, can be replaced with several alternatives depending on the application requirements. Equivalent products include:
1. LM2575 - A step-down voltage regulator.
2. MC34063 - A versatile DC-DC converter.
3. LM2596 - A buck converter IC.
4. LT1073 - A micropower DC-DC converter.
5. L4970 - A monolithic power switching regulator.
These alternatives provide similar functionality with variations in efficiency, output current, and input voltage range. Always verify the specifications to ensure compatibility.
1. LM2575 - A step-down voltage regulator.
2. MC34063 - A versatile DC-DC converter.
3. LM2596 - A buck converter IC.
4. LT1073 - A micropower DC-DC converter.
5. L4970 - A monolithic power switching regulator.
These alternatives provide similar functionality with variations in efficiency, output current, and input voltage range. Always verify the specifications to ensure compatibility.
Features
The TL497ACN is a versatile DC-DC converter integrated circuit designed for efficient voltage regulation and power management. Key features include:
1. Adjustable Output Voltage: Allows customization of the output voltage to meet specific application requirements.
2. Wide Input Voltage Range: Supports a broad range of input voltages, making it suitable for various power supply configurations.
3. High Efficiency: Designed to minimize power loss during conversion, ensuring efficient operation and reduced heat generation.
4. Current Limiting: Provides built-in current limiting to protect against overcurrent conditions, enhancing the reliability of the circuit.
5. Compact Design: Available in a DIP package, facilitating easy integration into circuit boards with limited space.
6. Temperature Stability: Exhibits stable performance across a wide temperature range, ensuring reliability in different environmental conditions.
7. Low Quiescent Current: Consumes minimal current when in standby, aiding in power conservation, especially in battery-powered applications.
These features make the TL497ACN suitable for various applications, including battery chargers, power supplies, and other electronic devices requiring efficient voltage regulation.
1. Adjustable Output Voltage: Allows customization of the output voltage to meet specific application requirements.
2. Wide Input Voltage Range: Supports a broad range of input voltages, making it suitable for various power supply configurations.
3. High Efficiency: Designed to minimize power loss during conversion, ensuring efficient operation and reduced heat generation.
4. Current Limiting: Provides built-in current limiting to protect against overcurrent conditions, enhancing the reliability of the circuit.
5. Compact Design: Available in a DIP package, facilitating easy integration into circuit boards with limited space.
6. Temperature Stability: Exhibits stable performance across a wide temperature range, ensuring reliability in different environmental conditions.
7. Low Quiescent Current: Consumes minimal current when in standby, aiding in power conservation, especially in battery-powered applications.
These features make the TL497ACN suitable for various applications, including battery chargers, power supplies, and other electronic devices requiring efficient voltage regulation.
Pinout
The TL497ACN is a voltage regulator IC that is commonly used in switching power supply applications. It is designed for step-up, step-down, and inverting power supply applications. The TL497ACN comes in an 8-pin dual in-line package (DIP).
Here is a brief overview of the pin functions:
1. Pin 1 (VCC): Positive supply voltage input.
2. Pin 2 (CT): Timing capacitor connection. This pin is used to set the frequency of the internal oscillator.
3. Pin 3 (GND): Ground connection.
4. Pin 4 (VREF): Reference voltage output.
5. Pin 5 (Feedback/Compensation): Used for voltage feedback and error compensation.
6. Pin 6 (Output Transistor Emitter/Collector): Part of the internal power transistor for switching. Works with Pin 7.
7. Pin 7 (Output Transistor Collector/Emitter): Part of the internal power transistor for switching. Works with Pin 6.
8. Pin 8 (Enable): Used to enable or disable the oscillator.
The combination of these pins allows the TL497ACN to regulate voltage in various configurations, making it versatile for different power supply designs.
Here is a brief overview of the pin functions:
1. Pin 1 (VCC): Positive supply voltage input.
2. Pin 2 (CT): Timing capacitor connection. This pin is used to set the frequency of the internal oscillator.
3. Pin 3 (GND): Ground connection.
4. Pin 4 (VREF): Reference voltage output.
5. Pin 5 (Feedback/Compensation): Used for voltage feedback and error compensation.
6. Pin 6 (Output Transistor Emitter/Collector): Part of the internal power transistor for switching. Works with Pin 7.
7. Pin 7 (Output Transistor Collector/Emitter): Part of the internal power transistor for switching. Works with Pin 6.
8. Pin 8 (Enable): Used to enable or disable the oscillator.
The combination of these pins allows the TL497ACN to regulate voltage in various configurations, making it versatile for different power supply designs.
Manufacturer
The TL497ACN is manufactured by Texas Instruments (TI), a leading American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, which are used in a wide array of electronic applications. TI's products are foundational in devices ranging from consumer electronics to automotive systems and more. As a major player in the semiconductor industry, Texas Instruments is known for its innovation, extensive product portfolio, and commitment to providing solutions that help make electronics more efficient and reliable.
Application
The TL497ACN is a versatile DC-DC converter typically used in applications requiring voltage regulation, such as power supply circuits. Key application areas include:
1. Battery-Powered Devices: Provides efficient power conversion to extend battery life.
2. Consumer Electronics: Used in devices like mobile phones and tablets for voltage regulation.
3. Industrial Equipment: Employed in control systems and instrumentation for stable power supply.
4. Automotive Systems: Utilized in vehicle electronics for efficient power management.
5. Telecommunications: Supports power supplies in communication systems and networking equipment.
Its adjustable output voltage and current limiting features make it suitable for a wide range of power management applications.
1. Battery-Powered Devices: Provides efficient power conversion to extend battery life.
2. Consumer Electronics: Used in devices like mobile phones and tablets for voltage regulation.
3. Industrial Equipment: Employed in control systems and instrumentation for stable power supply.
4. Automotive Systems: Utilized in vehicle electronics for efficient power management.
5. Telecommunications: Supports power supplies in communication systems and networking equipment.
Its adjustable output voltage and current limiting features make it suitable for a wide range of power management applications.
Package
The TL497ACN is typically found in a Dual In-line Package (DIP), specifically an 8-pin DIP, which is a standard package type for integrated circuits used for prototyping and through-hole applications.
