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LM334Z/NOPB
+StücklisteIC CURRENT SOURCE 3% TO92-3
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HerstellerTexas Instruments
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Herstellerteil #LM334Z/NOPB
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Paket TO-92-3
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Auf Lager5931
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package / Case | Bulk |
| Part Status | Active |
| Function | Current Source |
| Accuracy | ±6% |
| Voltage - Input | 1V ~ 40V |
| Current - Output | Adjustable |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Through Hole |
Übersicht
Description
This IC operates with a voltage range of 1V to 40V, and its temperature coefficient can be adjusted to zero, allowing stable operation across different environments. The LM334Z/NOPB is housed in a TO-92 package, which is compact and suitable for through-hole applications. Typical uses include biasing of active devices in analog circuits, sensor excitation, and precision current applications in both industrial and consumer electronics.
Overall, the LM334Z/NOPB offers a simple and effective solution for generating a stable current source with minimal external components.
Equivalent
1. TI LM334 series (e.g., LM334M)
2. Analog Devices' AD590 (for temperature to current conversion)
3. Maxim Integrated's MAX604 (for precise current sources)
4. ON Semiconductor's NSI45020JDT4G
5. Microchip's MCP1700 (for specific current applications with voltage regulation)
Always verify specifications and pin compatibility with the datasheet before substituting.
Features
1. Current Range: It operates over a wide range of currents from 1 µA to 10 mA.
2. Temperature Operation: Functions efficiently over a temperature range from -40°C to +85°C.
3. Voltage Operation: It has a low operating voltage requirement, typically around 1V.
4. Linearity: Provides excellent linearity over the entire current range.
5. Programmability: The current output is easily programmed with a single resistor.
6. Drift: Exhibits low drift, making it suitable for precision applications.
7. Package: Available in a TO-92 package, which is compact and easy to handle.
8. Applications: Ideal for use in temperature compensation, battery charging circuits, and current reference applications in various electronic devices.
The LM334Z/NOPB offers reliability and precision, making it a versatile choice for temperature-dependent current regulation needs.
Pinout
1. R (Resistor): This pin is used to set the current by connecting a resistor between this pin and the V+ pin. The value of the resistor determines the output current according to the formula I = 67.7mV/Rset.
2. V+: This is the positive supply voltage pin, where the device receives its operating power. It should be connected to the positive side of the power supply.
3. V- (Common): This is the ground or common return path for the current flowing through the device.
The device operates over a wide range of voltages (up to about 40V) and provides a current range from 1µA to 10mA. Its simplicity, low cost, and versatility make it suitable for various low-power applications.
Manufacturer
Application
1. Temperature Sensors: Acts as a temperature-dependent current source for thermometers.
2. Battery Chargers: Provides a constant charging current.
3. LED Drivers: Supplies stable current for consistent LED brightness.
4. Biasing Circuits: Used in biasing transistors and other components.
5. Current References: Offers a reliable reference in analog and mixed-signal ICs.
6. 4-20 mA Current Loop Systems: Ideal for industrial control systems requiring current loops.
Its versatility across voltage and temperature ranges makes it suitable for various electronic and industrial uses.