사양
| 속성 | 가치 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | General Purpose |
| NumberofElements | 1 |
| OutputType | CMOS, Open-Collector, TTL |
| Voltage-SupplySingle/Dual(±) | 5V ~ 30V, ±2.5V ~ 15V |
| Voltage-InputOffset(Max) | 7mV @ 30V |
| Current-InputBias(Max) | 0.25µA @ 5V |
| Current-Output(Typ) | 13mA @ 5V |
| Current-Quiescent(Max) | 2mA |
| PropagationDelay(Max) | 940µs |
| OperatingTemperature | -40°C ~ 85°C |
| Package/Case | SC-74A, SOT-753 |
| MountingType | Surface Mount |
개요
Description
The LM397MF/NOPB is a single-channel voltage comparator from Texas Instruments, designed for applications that require a simple and efficient comparison between two voltages. Operating with a supply voltage range of 2 V to 36 V, it is suitable for both dual and single-supply systems. The device offers an open-drain output, which allows it to be connected to a range of logic levels. It features a low input offset voltage and high input impedance, making it effective for precision voltage comparison tasks.
The LM397MF/NOPB is housed in a SOT-23 package, supporting its use in space-constrained applications. Its wide supply voltage range and low power consumption make it ideal for battery-powered devices. The device is also designed to operate over a wide temperature range, ensuring reliability in various environmental conditions.
Key applications include zero-crossing detectors, voltage sensing, and level-shifting tasks. With a fast response time, the LM397MF/NOPB is suited for real-time monitoring and control applications across consumer electronics, industrial systems, and automotive sectors.
The LM397MF/NOPB is housed in a SOT-23 package, supporting its use in space-constrained applications. Its wide supply voltage range and low power consumption make it ideal for battery-powered devices. The device is also designed to operate over a wide temperature range, ensuring reliability in various environmental conditions.
Key applications include zero-crossing detectors, voltage sensing, and level-shifting tasks. With a fast response time, the LM397MF/NOPB is suited for real-time monitoring and control applications across consumer electronics, industrial systems, and automotive sectors.
Equivalent
The LM397MF/NOPB is a voltage comparator. Equivalent products include the LM393LM2903, and LM339 from Texas Instruments, as well as the LM311 from various manufacturers. These chips offer similar functionalities with slight variations in specifications such as power supply range, input offset voltage, and package type. Ensure to review the datasheets for specific application requirements and compatibility.
Features
The LM397MF/NOPB is a single-voltage comparator designed for precision applications. Key features include:
1. Wide Supply Voltage Range: It operates from 2.7V to 36V, making it suitable for a broad range of applications.
2. Low Supply Current: The device typically consumes only 0.47 mA, enhancing power efficiency.
3. Open-Collector Output: Allows for wired-OR configurations and level shifting.
4. Low Input Offset Voltage: Ensures high accuracy with typically 2 mV.
5. Input Common-Mode Voltage Range: Extends from 0V to VCC - 1.5V, allowing inputs near the ground.
6. Fast Response Time: Offers quick switching with a response time of 440 ns.
7. Small Package: Available in a compact SOT-23-5 package, ideal for space-constrained designs.
8. Temperature Range: Operates between -40°C to 125°C, suitable for industrial environments.
9. RoHS Compliant: The product is environmentally friendly, meeting current standards for hazardous substances.
These features make the LM397MF/NOPB suitable for various precision measurement, signal conditioning, and control applications.
1. Wide Supply Voltage Range: It operates from 2.7V to 36V, making it suitable for a broad range of applications.
2. Low Supply Current: The device typically consumes only 0.47 mA, enhancing power efficiency.
3. Open-Collector Output: Allows for wired-OR configurations and level shifting.
4. Low Input Offset Voltage: Ensures high accuracy with typically 2 mV.
5. Input Common-Mode Voltage Range: Extends from 0V to VCC - 1.5V, allowing inputs near the ground.
6. Fast Response Time: Offers quick switching with a response time of 440 ns.
7. Small Package: Available in a compact SOT-23-5 package, ideal for space-constrained designs.
8. Temperature Range: Operates between -40°C to 125°C, suitable for industrial environments.
9. RoHS Compliant: The product is environmentally friendly, meeting current standards for hazardous substances.
These features make the LM397MF/NOPB suitable for various precision measurement, signal conditioning, and control applications.
Pinout
The LM397MF/NOPB is a single-voltage comparator with a pin count of 5. It is designed for general-purpose applications and operates with a single power supply. Here's a brief overview of its pin functions:
1. V+ (Pin 5): The positive power supply pin. It provides the voltage necessary for the operation of the comparator.
2. GND (Pin 2): The ground pin. It serves as the reference point for the supply voltage.
3. IN+ (Pin 3): The non-inverting input. The voltage applied here is compared to the voltage at the inverting input.
4. IN- (Pin 4): The inverting input. The voltage at this pin is compared against the voltage at the non-inverting input.
5. OUT (Pin 1): The output pin. It provides the comparator's output signal, which indicates whether the non-inverting input voltage is higher or lower than the inverting input voltage.
The LM397 is commonly used in applications requiring a simple, efficient voltage comparison, and it offers features like low power consumption and fast response time.
1. V+ (Pin 5): The positive power supply pin. It provides the voltage necessary for the operation of the comparator.
2. GND (Pin 2): The ground pin. It serves as the reference point for the supply voltage.
3. IN+ (Pin 3): The non-inverting input. The voltage applied here is compared to the voltage at the inverting input.
4. IN- (Pin 4): The inverting input. The voltage at this pin is compared against the voltage at the non-inverting input.
5. OUT (Pin 1): The output pin. It provides the comparator's output signal, which indicates whether the non-inverting input voltage is higher or lower than the inverting input voltage.
The LM397 is commonly used in applications requiring a simple, efficient voltage comparison, and it offers features like low power consumption and fast response time.
Manufacturer
The LM397MF/NOPB is manufactured by Texas Instruments (TI). Texas Instruments is a major American technology company known for designing, manufacturing, and selling semiconductors and various integrated circuits. They serve a broad range of industries, including automotive, industrial, consumer electronics, and communication equipment. TI is recognized for its innovation in analog and embedded processing products, which are used in various electronic systems globally.
Application
The LM397MF/NOPB is a single-voltage comparator used in various applications including level detection, voltage monitoring, and signal conditioning. It is commonly utilized in power management systems to monitor and compare voltage levels, ensuring efficient power supply management. Additionally, it's used in sensor interfacing to convert analog signals into digital outputs, suitable for microcontrollers and other digital systems. Its fast response time and low power consumption make it ideal for battery-operated devices, automotive applications, and consumer electronics. The LM397MF/NOPB can also be applied in threshold detectors and zero-crossing detectors in industrial and instrumentation applications.
Package
The LM397MF/NOPB is available in a SOT-23-5 package type. This package is small and suitable for space-constrained applications, providing a compact solution for integrating this single-channel comparator into various electronic circuits.
