Allicdata Part #: | LP2901DE4-ND |
Manufacturer Part#: |
LP2901DE4 |
Price: | $ 0.22 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC DIFF COMPARATOR QUAD 14-SOIC |
More Detail: | Comparator General Purpose CMOS, MOS, Open-Collect... |
DataSheet: | LP2901DE4 Datasheet/PDF |
Quantity: | 1000 |
1300 +: | $ 0.19555 |
Specifications
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Type: | General Purpose |
Number of Elements: | 4 |
Output Type: | CMOS, MOS, Open-Collector |
Voltage - Supply, Single/Dual (±): | 3 V ~ 30 V |
Voltage - Input Offset (Max): | 5mV @ 30V |
Current - Input Bias (Max): | 0.025µA @ 5V |
Current - Output (Typ): | 30mA @ 5V |
Current - Quiescent (Max): | 100µA |
CMRR, PSRR (Typ): | -- |
Propagation Delay (Max): | -- |
Hysteresis: | -- |
Operating Temperature: | -40°C ~ 85°C |
Package / Case: | 14-SOIC (0.154", 3.90mm Width) |
Mounting Type: | Surface Mount |
Supplier Device Package: | 14-SOIC |
Base Part Number: | LP2901 |
Description
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<title>LP2901DE4 Application Field and Working Principle</title><h1>Linear - Comparators</h1> <h2>LP2901DE4 Application Field and Working Principle</h2><p>LP2901DE4 is a linear-comparator integrated circuit, produced by Texas Instruments. This highly integrated device is specifically designed to be used in zero-crossing applications. It features a high-output current buffer and an Insulated Gate Bipolar Transistor (IGBT) driver.</p><p>The LP2901DE4 is a linear-comparator integrated circuit which combines two key functions that are employed in zero-crossing applications:</p><ul><li>Linear Comparator</li><li>IGBT Driver</li></ul><p>The linear-comparator component of the LP2901DE4 is designed to detect a predetermined level of input voltage. When the input voltage exceeds or drops below the pre-established threshold, the comparator switches its output, triggering an event. This comparative output is used to drive the IGBT driver component. The IGBT driver component produces a high-voltage, high-current output suitable for driving the gate of an IGBT.</p><p>The LP2901DE4 is an effective solution for a wide range of zero-crossing applications. It is easy to interface, features a low power consumption (1.8W maximum), a high signal-to-noise ratio, and a very low temperature coefficient. These characteristics make the device especially suitable for motor control applications, such as the automatic switching of motors. The LP2901DE4 can also be used in light dimmers and solenoid actuators.</p><p>The working principle of the LP2901DE4 can be described as follows:</p><h3>Linear-Comparator</h3><p>The linear-comparator component, which is the core of the LP2901DE4, is responsible for detecting a selected level of voltage. It compares the input voltage with a predetermined reference voltage, and then switches its output accordingly.</p><p>The comparator has adjustable switching thresholds, allowing the user the flexibility to set a suitable level of input voltage for their application. These thresholds are set by adjusting the resistor value of the voltage divider connected between the reference voltage and an adjustable bias voltage.</p><h3>IGBT Driver</h3><p>The IGBT driver is a high-current, high-voltage output circuit which is used to drive the gate of an IGBT. It is triggered by the output of the linear-comparator.</p><p>The IGBT driver has a low input current, meaning that it only consumes the minimum amount of energy. This makes the device particularly suitable for applications where power efficiency is essential. The high-voltage output of the IGBT driver ensures that the IGBT is optimally driven, making the LP2901DE4 an ideal solution for motor control.</p><h3>Conclusion</h3><p>The LP2901DE4 is a highly integrated device specifically designed for zero-crossing applications. The linear-comparator component detects a predetermined level of input voltage and triggers the IGBT driver component when the input exceeds or drops below the pre-set value. The high-voltage output of the IGBT driver ensures the optimal operation of the IGBT.</p><p>The LP2901DE4 is an effective solution for a wide range of zero-crossing applications, such as motor control, light dimmers and solenoid actuators. It is easy to interface, features a low power consumption, a high signal-to-noise ratio and a very low temperature coefficient.</p>The specific data is subject to PDF, and the above content is for reference
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