仕様
| 属性 | 値 |
| Package | Tape & Reel (TR) |
| ProductStatus | Obsolete |
| Type | General Purpose |
| NumberofElements | 2 |
| OutputType | Open Collector |
| Voltage-SupplySingle/Dual(±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage-InputOffset(Max) | 7mV @ 5V |
| Current-InputBias(Max) | 0.25µA @ 5V |
| Current-Quiescent(Max) | 2mA |
| OperatingTemperature | 0°C ~ 70°C |
| Package/Case | 14-TSSOP (0.173, 4.40mm Width) |
| MountingType | Surface Mount |
概要
Description
The LM339PWR is a quad comparator integrated circuit commonly used in voltage comparison applications. Manufactured by Texas Instruments, it is part of the LM339 series, providing four independent voltage comparators in a single package. Each comparator in the LM339PWR has an open collector output, allowing it to interface with various logic systems. It operates over a wide range of power supply voltages, from 2V to 36V, making it versatile for use in both low-voltage and high-voltage applications.
The LM339PWR comes in a TSSOP-14 package, which is compact and suitable for space-constrained designs. It is capable of driving loads connected to different power supply rails, thanks to its open collector configuration. The device is suitable for battery-operated systems, level shifters, and various signal conditioning applications. It features low input offset voltage and input bias current, ensuring accurate and reliable performance. With a wide common-mode range, including ground, and low power consumption, the LM339PWR is widely used in industrial, automotive, and consumer electronics.
The LM339PWR comes in a TSSOP-14 package, which is compact and suitable for space-constrained designs. It is capable of driving loads connected to different power supply rails, thanks to its open collector configuration. The device is suitable for battery-operated systems, level shifters, and various signal conditioning applications. It features low input offset voltage and input bias current, ensuring accurate and reliable performance. With a wide common-mode range, including ground, and low power consumption, the LM339PWR is widely used in industrial, automotive, and consumer electronics.
Equivalent
The LM339PWR is a quad comparator IC. Equivalent products include:
1. LM339N
2. LM339D
3. LM339DT
4. LM239
5. LM2901
6. MC3302
These equivalents generally offer similar functionalities and specifications, allowing them to be used interchangeably in most applications. However, it’s important to verify package type and electrical specifications to ensure compatibility with your specific design requirements.
1. LM339N
2. LM339D
3. LM339DT
4. LM239
5. LM2901
6. MC3302
These equivalents generally offer similar functionalities and specifications, allowing them to be used interchangeably in most applications. However, it’s important to verify package type and electrical specifications to ensure compatibility with your specific design requirements.
Features
The LM339PWR is a quad voltage comparator integrated circuit. Its key features include:
1. Quad Comparator: Contains four independent voltage comparators in a single package.
2. Wide Supply Voltage Range: Operates from 2V to 36V for single supply and ±1V to ±18V for dual supplies.
3. Low Input Offset Voltage: Typically 2mV, which improves precision.
4. Low Input Bias Current: Typically 50nA, enabling high input impedance.
5. Low Output Saturation Voltage: Ensures efficient switching with a typical value of 150mV at 4mA.
6. Open-Collector Outputs: Allows for wired-AND connections and use in various logic levels.
7. Wide Operating Temperature Range: Suitable for industrial applications, typically from -40°C to 85°C.
8. High Input Impedance: Minimizes loading effects on the input signal source.
9. Fast Response Time: Delivers quick reaction to input signal changes.
10. Small Package Size: Available in a TSSOP-14 package, saving board space.
These features make the LM339PWR suitable for numerous applications, including zero-crossing detectors, voltage-level sensing, and various control circuits.
1. Quad Comparator: Contains four independent voltage comparators in a single package.
2. Wide Supply Voltage Range: Operates from 2V to 36V for single supply and ±1V to ±18V for dual supplies.
3. Low Input Offset Voltage: Typically 2mV, which improves precision.
4. Low Input Bias Current: Typically 50nA, enabling high input impedance.
5. Low Output Saturation Voltage: Ensures efficient switching with a typical value of 150mV at 4mA.
6. Open-Collector Outputs: Allows for wired-AND connections and use in various logic levels.
7. Wide Operating Temperature Range: Suitable for industrial applications, typically from -40°C to 85°C.
8. High Input Impedance: Minimizes loading effects on the input signal source.
9. Fast Response Time: Delivers quick reaction to input signal changes.
10. Small Package Size: Available in a TSSOP-14 package, saving board space.
These features make the LM339PWR suitable for numerous applications, including zero-crossing detectors, voltage-level sensing, and various control circuits.
Pinout
The LM339PWR is a quad comparator integrated circuit, which means it contains four independent voltage comparators. It comes in a 14-pin package. The pin configuration and functions are as follows:
1. VCC (Pin 3): Supply voltage pin.
2. GND (Pin 12): Ground connection.
Each comparator has:
- Non-inverting Inputs (Pins 5, 7, 9, 11): Inputs where the voltage is compared against the inverting input.
- Inverting Inputs (Pins 4, 6, 8, 10): Inputs to which you apply the reference voltage for comparison.
- Outputs (Pins 1, 2, 13, 14): Open-collector outputs for each comparator, which provide the result of the voltage comparison.
The LM339PWR operates by comparing the voltages at its inverting and non-inverting inputs and outputs a signal indicating which is higher. It is commonly used in applications requiring voltage comparison, such as zero-crossing detectors, level shifting, and square wave generation.
1. VCC (Pin 3): Supply voltage pin.
2. GND (Pin 12): Ground connection.
Each comparator has:
- Non-inverting Inputs (Pins 5, 7, 9, 11): Inputs where the voltage is compared against the inverting input.
- Inverting Inputs (Pins 4, 6, 8, 10): Inputs to which you apply the reference voltage for comparison.
- Outputs (Pins 1, 2, 13, 14): Open-collector outputs for each comparator, which provide the result of the voltage comparison.
The LM339PWR operates by comparing the voltages at its inverting and non-inverting inputs and outputs a signal indicating which is higher. It is commonly used in applications requiring voltage comparison, such as zero-crossing detectors, level shifting, and square wave generation.
Manufacturer
The LM339PWR is manufactured by Texas Instruments. Texas Instruments is a global technology company known for designing and manufacturing semiconductors and integrated circuits. They provide solutions for a wide range of industries, including consumer electronics, automotive, industrial, and communications equipment. The company is headquartered in Dallas, Texas, and is a leader in the electronics industry, focusing on innovation and quality in its product offerings.
Application
The LM339PWR is a quad voltage comparator commonly used in various electronic applications. Its key application areas include:
1. Voltage Level Detection: It is used to compare voltage levels for threshold detection in power supply monitoring and battery chargers.
2. Oscillator Circuits: It can be employed in timer and oscillator circuits for creating square wave signals.
3. Analog Signal Processing: Useful in converting analog signals to digital by comparing input voltages.
4. Zero-Crossing Detectors: Applied in AC waveform analysis for detecting zero crossings in signal processing.
5. Window Comparators: Used for determining if an input voltage falls within a specific range.
Its versatility and low power consumption make it suitable for a wide variety of electronic systems.
1. Voltage Level Detection: It is used to compare voltage levels for threshold detection in power supply monitoring and battery chargers.
2. Oscillator Circuits: It can be employed in timer and oscillator circuits for creating square wave signals.
3. Analog Signal Processing: Useful in converting analog signals to digital by comparing input voltages.
4. Zero-Crossing Detectors: Applied in AC waveform analysis for detecting zero crossings in signal processing.
5. Window Comparators: Used for determining if an input voltage falls within a specific range.
Its versatility and low power consumption make it suitable for a wide variety of electronic systems.
Package
The LM339PWR is a quad voltage comparator IC from Texas Instruments and comes in a TSSOP-14 (Thin Shrink Small Outline Package) package type. This surface-mount package is suitable for compact applications and features improved thermal performance.
