Abbildungen dienen nur als Referenz
LM334DT
+StücklisteIC CURRENT SOURCE 3% 8SOIC
-
HerstellerSTMikroelektronik
-
Herstellerteil #LM334DT
-
Datenblatt LM334DT DataSheet
-
Paket SOIC-8
-
Auf Lager4556
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Current Source |
| Accuracy | ±3% |
| Voltage-Input | 1V ~ 40V |
| Current-Output | 10mA |
| OperatingTemperature | 0°C ~ 70°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Übersicht
Description
The LM334DT is noted for its excellent temperature stability, with its current output typically varying only slightly with temperature changes, thanks to its low temperature coefficient. This feature makes it suitable for temperature-compensated applications. It is commonly used in battery-powered devices, precision current mirrors, and as a constant current source in test equipment.
Packaged in a surface-mount TO-252 package, the LM334DT is compact and suitable for high-density circuit boards. Its simplicity, reliability, and precision make it popular among engineers for various analog applications.
Equivalent
Features
1. Adjustable Current Output: The device can be configured to provide a constant current output ranging from 1µA to 10mA, adjustable via an external resistor.
2. Wide Input Voltage Range: It operates effectively over a voltage range of 1V to 40V, making it versatile for various applications.
3. Temperature Stability: The LM334DT offers excellent temperature stability, with a low temperature coefficient, typically around 0.33%/°C, ensuring consistent performance across varying temperatures.
4. Low Drift: It has low drift in its output current, providing reliable and precise current sourcing.
5. Compact Package: The device is available in a standard TO-252 package, which is suitable for surface-mount technology (SMT).
Overall, the LM334DT is ideal for applications requiring a precise and stable current source, such as sensor biasing, battery chargers, and analog circuits.
Pinout
1. R (Resistor): This pin is used to set the output current by connecting an external resistor between this pin and the V- pin. The resistance value determines the current level according to the formula \( I = 67.7 \, \text{mV}/R \).
2. V+: This is the positive supply voltage pin. It is connected to the higher potential in the circuit.
3. V- (Common): This is the common pin and is typically connected to the ground or the lower potential in the circuit.
The LM334DT can be used in a variety of applications, including temperature sensing, current limiting, and precision current generation.
Manufacturer
Application
1. Temperature Sensing: Utilized in systems that require temperature-based current control or compensation.
2. Biasing and Current Sources: Provides constant current sources for biasing LEDs, transistors, and other components.
3. Analog Circuit Design: Used in analog circuits where a stable current reference is needed.
4. Battery Chargers: Helps in designing efficient battery charging circuits.
5. Medical Devices: Applied in medical instrumentation for precise current delivery.
Its ability to operate over a wide temperature range makes it versatile for use in both consumer electronics and industrial applications.