LM339QT Integrated Circuits (ICs) |
|
| Allicdata Part #: | 497-12006-2-ND |
| Manufacturer Part#: |
LM339QT |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | STMicroelectronics |
| Short Description: | IC COMPARATOR LP QUAD 16QFN |
| More Detail: | Comparator General Purpose CMOS, DTL, ECL, MOS, Op... |
| DataSheet: |  LM339QT Datasheet/PDF |
| Quantity: | 12000 |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
Specifications
| Series: | -- |
| Packaging: | Tape & Reel (TR) |
| Lead Free Status / RoHS Status: | -- |
| Part Status: | Active |
| Moisture Sensitivity Level (MSL): | -- |
| Type: | General Purpose |
| Number of Elements: | 4 |
| Output Type: | CMOS, DTL, ECL, MOS, Open-Collector, TTL |
| Voltage - Supply, Single/Dual (±): | 2 V ~ 36 V, ±1 V ~ 18 V |
| Voltage - Input Offset (Max): | -- |
| Current - Input Bias (Max): | -- |
| Current - Output (Typ): | -- |
| Current - Quiescent (Max): | 2.5mA |
| CMRR, PSRR (Typ): | -- |
| Propagation Delay (Max): | -- |
| Hysteresis: | -- |
| Operating Temperature: | -- |
| Package / Case: | 16-VFQFN Exposed Pad |
| Mounting Type: | Surface Mount |
| Supplier Device Package: | 16-QFN (3x3) |
| Base Part Number: | LM339 |
Description
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Comparators are electronic circuits used to compare two input voltages and determine which is larger or if they are equal. They are also used for voltage amplification and for switching between two circuits when power is applied. LM339QT is a quad precision comparator integrated circuit (IC) that provides ultra-fast voltage comparison within a range of 0.2 volts (V) to 9.9 V. It can compare the voltage values of both the positive and negative supplies at the same time, allowing designers to make the most of their voltage-comparison designs. This IC also comes in a variety of packages, making it suitable for a wide range of applications.The LM339QT offers many of the same features and benefits that LM339N offers. It is a monolithic integrated circuit and has a wide power supply range from 4.5 V to 16 V. Its wide response range is 0.2 V to 9.9 V. Its input offset voltage is 0.2 mV, and its output voltage is between 0V and Vcc-1. The recently developed LM339QT provides 0.4 mV precision in comparator offset voltage with a large common-mode dynamic range, fast response times, and small size for demanding applications such as battery protection and power supply design.The LM339QT can be used in two different ways. The first is as a standard comparator, where two or more input signals are compared, and depending on the result, the output is either high or low. The second is as an open-collector comparator, where the output is high when the first input is higher than the second input and open collector when the first input is lower than the second input.One of the main applications of the LM339QT is in battery protection circuits. It is also used in power supply design, where it is used to provide faster transient response time and enable precision voltage comparison while limiting power consumption. This IC feature high input impedance, low offset voltage, and fast response time. It is ideal for use in analog and digital circuits, as well as for waveform comparisons, waveform generation, and waveform shaping.Another application of the LM339QT is in industrial temperature control. Its high-precision voltage comparison capability allows it to maintain a precise temperature within the operating range by detecting temperatures outside the operating range and triggering a warning or other type of response. It also can be used in medical equipment, where its fast response and high accuracy are desired for precise temperature sensing.In addition, the LM339QT IC can be used in negative voltage comparators or in saturation detector circuits. The IC can detect whether a particular circuit is in saturation or not by comparing the input voltage to a set reference voltage. It can also be used in power supply switch over circuits, where the output voltage is connected to an amplifier and then switched to an alternate power supply. This allows the designer to manually control the power demand.Overall, the LM339QT IC is a versatile and reliable tool for many applications. It can be used to compare two voltages, measure saturation, switch over power supplies, and maintain temperature control. With its high-precision voltage comparison capability, small size, and wide power supply range, it’s capable of meeting the needs of many applications.
The specific data is subject to PDF, and the above content is for reference
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