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LM339DT
+NomenclatureIC COMPARATOR QUAD GP 14SOIC
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FabricantROM
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Pièce fabricant #LM339DT
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Package SO-14
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En stock4046
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR) |
| Part Status | Active |
| Type | General Purpose |
| Number of Elements | 4 |
| Output Type | CMOS, MOS, Open-Collector, TTL |
| Voltage - Supply, Single/Dual (±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage - Input Offset (Max) | 7mV @ 5V |
| Current - Input Bias(Max) | 0.25µA @ 5V |
| Current - Output (Typ) | 16mA @ 5V |
| Current - Quiescent (Max) | 2mA |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
Présentation
Description
Key features of the LM339DT include low input bias current, low power consumption, and compatibility with TTL and CMOS logic systems. It operates over a wide supply voltage range, typically from 2V to 36V, which allows it to be used in a variety of power supply configurations. The open-collector output stages of the comparators can drive loads connected to a range of supply voltages.
The LM339DT is typically packaged in a compact surface-mount (SOIC-14) format, making it suitable for modern electronic designs where space is a constraint. Its low cost and reliability make it a popular choice in automotive, industrial, and consumer electronics applications.
Equivalent
1. LM339N
2. LM339D
3. LM239N
4. LM2901N
5. MC3302
6. TL074
These alternatives offer similar functionality and pin configurations, suitable for most applications involving voltage comparison. Always check the datasheets for specific parameters to ensure compatibility with your requirements.
Features
1. Wide Supply Voltage Range: Compatible with single or dual power supplies, typically ranging from 2V to 36V for single supply and ±1V to ±18V for dual supplies.
2. Low Input Bias Current: Helps in reducing errors caused by input offset voltage.
3. Low Output Saturation Voltage: Ensures less power loss and better efficiency.
4. TTL and CMOS Compatible Outputs: Facilitates easy interfacing with digital logic circuits.
5. Low Power Consumption: Suitable for battery-operated devices and power-sensitive applications.
6. Reverse Battery Protection: Provides durability and reliability for various applications.
7. Wide Operating Temperature Range: Typically operates within -40°C to 85°C, making it suitable for industrial applications.
8. Open Collector Outputs: Allows for wired-AND connections and can drive loads up to 50mA.
These features make the LM339DT ideal for applications such as zero-crossing detectors, voltage level shifters, and various sensor interfaces.
Pinout
1. Pin 1-4: Output for Comparators 1-4, respectively.
2. Pin 5: Ground (GND).
3. Pin 6-7: Inverting Input for Comparators 4 and 3, respectively.
4. Pin 8-9: Non-Inverting Input for Comparators 3 and 4, respectively.
5. Pin 10-11: Non-Inverting Input for Comparators 2 and 1, respectively.
6. Pin 12-13: Inverting Input for Comparators 1 and 2, respectively.
7. Pin 14: Power Supply (VCC).
The LM339DT can compare voltages at its inputs and provide a digital output based on which input is higher. It is widely used in applications requiring signal comparison, such as zero-crossing detectors, voltage limit detectors, and more.
Manufacturer
Application
1. Voltage Level Detection: It compares input voltages and outputs a digital signal based on the comparison, useful in battery level monitoring and power supply circuits.
2. Zero-Crossing Detectors: Used in AC signal processing to detect when the voltage crosses zero, aiding in synchronization tasks.
3. Oscillators and Timers: Functions as part of relaxation oscillator circuits for generating timing signals.
4. Window Comparators: Employed in circuits that require monitoring of voltage levels within a specific range.
5. Analog Signal Processing: Utilized in peak detection, signal conditioning, and threshold detection applications.
Its low power, wide supply range, and capability to handle multiple inputs make it versatile for industrial and consumer electronics.