**LT3090EDD#TRPBF: A Comprehensive Guide to the 200mA 2-Terminal Programmable Current Source**
The **LT3090EDD#TRPBF** from Analog Devices represents a significant advancement in the design and implementation of precision current sources. As a **two-terminal programmable current source**, it offers unparalleled flexibility and performance in a compact package. This integrated circuit (IC) is engineered to deliver up to **200mA of regulated current** with exceptional accuracy and stability, making it an ideal solution for a wide range of applications, from LED biasing and sensor excitation to precision testing and laser diode driving.
A key feature of the LT3090 is its simplicity of use. Unlike traditional current sources that require multiple external components, this device is remarkably easy to program. The output current is set by a single external resistor (RSET), following the formula IOUT = 10µA * (10kΩ / RSET). This straightforward relationship allows designers to **easily set any current from 0.5mA to 200mA** with a high degree of precision. The device's two-terminal architecture means it can be used in series with the load, functioning similarly to a current regulator diode but with vastly superior programmability and performance.
The **LT3090EDD#TRPBF** is built for robust operation in demanding environments. It features a wide input voltage range of **1.5V to 40V**, providing significant headroom for various power supply conditions. Furthermore, it is designed to withstand **load voltages up to 40V**, ensuring reliable operation even with fluctuating loads. Critical protection features are integrated into the design, including **internal current limiting and thermal shutdown**, which safeguard the IC against accidental short circuits and overheating, thereby enhancing system reliability and longevity.
Housed in a **DFN-8 package**, the component is optimized for space-constrained applications. Its minimal external component count and compact form factor make it an excellent choice for modern, high-density PCB designs. The performance characteristics of the LT3090 are equally impressive, boasting **extremely low initial current error and a very low temperature coefficient**. This results in a current source that remains stable and accurate across a wide temperature range, which is critical for precision analog systems.
**ICGOOFind Summary**: The LT3090EDD#TRPBF is a highly versatile and robust programmable current source that simplifies design while providing premium performance. Its two-terminal design, wide voltage range, and superior accuracy make it an indispensable component for engineers designing precision analog systems, test equipment, and advanced driver circuits.
**Keywords**: Programmable Current Source, 200mA Regulator, Two-Terminal Device, Precision Analog IC, Wide Voltage Range.
