Overview
The LT3092IST#TRPBF, produced by Analog Devices Inc., is a programmable 2-terminal current source. This device is designed to provide a highly accurate and stable current output, making it suitable for a variety of applications. It requires only two resistors to set an output current ranging from 0.5mA to 200mA. The LT3092 is known for its simplicity, high DC and AC impedance, and the absence of a need for input and output capacitors, which makes it ideal for intrinsically safe applications.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Units |
|---|---|---|---|---|
| Output Current Range | 0.5 | - | 200 | mA |
| Input Voltage Range | 1.2 | - | 40 | V |
| SET Pin Current Accuracy | - | 1% | - | - |
| Line Regulation | - | <0.001%/V | - | - |
| Operating Junction Temperature Range | -40 | - | 125 | °C |
| Package Types | - | 8-lead TSOT-23, 3-lead SOT-223, 8-lead 3mm × 3mm DFN | - | - |
Key Features
- Programmable 2-terminal current source with adjustable output current between 0.5mA and 200mA using two resistors.
- Wide input voltage range from 1.2V to 40V.
- No input or output capacitors required.
- High DC and AC impedance, suitable for intrinsically safe applications.
- SET pin current accuracy of 1% and low temperature coefficient.
- Current regulation better than 10ppm/V from 1.5V to 40V.
- Internal protection circuitry including reverse-battery, reverse-current, current limiting, and thermal limiting.
Applications
- Driving sensors and remote supplies.
- Precision current limiter for local supplies.
- Intrinsically safe applications due to high impedance and no capacitor requirements.
- Automotive applications (with specific automotive-grade models designated with a #W suffix).
Q & A
- What is the output current range of the LT3092IST#TRPBF?
The output current range is between 0.5mA and 200mA.
- What is the input voltage range for the LT3092IST#TRPBF?
The input voltage range is from 1.2V to 40V.
- Does the LT3092IST#TRPBF require input or output capacitors?
No, it does not require input or output capacitors.
- What is the accuracy of the SET pin current?
The SET pin current accuracy is 1%.
- What types of protection does the LT3092IST#TRPBF have?
It includes reverse-battery, reverse-current, current limiting, and thermal limiting protection.
- In what packages is the LT3092IST#TRPBF available?
It is available in 8-lead TSOT-23, 3-lead SOT-223, and 8-lead 3mm × 3mm DFN packages.
- What are some common applications of the LT3092IST#TRPBF?
Common applications include driving sensors, remote supplies, and as a precision current limiter for local supplies.
- Is the LT3092IST#TRPBF suitable for automotive applications?
Yes, but specific automotive-grade models designated with a #W suffix must be used.
- How is the output current set on the LT3092IST#TRPBF?
The output current is set using two resistors connected to the SET pin.
- What is the operating junction temperature range for the LT3092IST#TRPBF?
The operating junction temperature range is from -40°C to 125°C.
