Overview
The LM334MX/NOPB is a 3-terminal adjustable current source produced by Texas Instruments. This device operates within a temperature range of 0°C to 70°C and is designed for a wide range of applications requiring precise current control. It features a simple external resistor connection to set the operating current, making it versatile and easy to integrate into various circuits.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Operating Temperature Range | 0 | 70 | °C | |
| Dynamic Voltage Range | 1 | 40 | V | |
| Set Current Range | 1 μA | 10 mA | ||
| Current Regulation | 0.02% | %/V | ||
| Initial Current Accuracy | ±3% | |||
| Power Dissipation | 400 | mW | ||
| ESD Susceptibility | 2000 | V | ||
| Package Type | SOIC-8 |
Key Features
- Operates from 1V to 40V dynamic voltage range
- Programmable from 1 μA to 10 mA with a single external resistor
- True 2-terminal operation with no separate power supply connections
- Excellent current regulation with 0.02%/V
- Available as a fully specified temperature sensor
- Reverse applied voltages up to 20V draw only a few dozen microamperes of current
- Zero drift operation possible with additional components
Applications
- Bias networks
- Surge protection
- Low power reference
- Ramp generation
- LED driver
- Temperature sensing
- Remote sense applications
Q & A
- What is the operating temperature range of the LM334MX/NOPB?
The operating temperature range is from 0°C to 70°C. - How is the set current established in the LM334MX/NOPB?
The set current is established with a single external resistor. - What is the dynamic voltage range of the LM334MX/NOPB?
The dynamic voltage range is from 1V to 40V. - What is the current regulation of the LM334MX/NOPB?
The current regulation is 0.02%/V. - What is the initial current accuracy of the LM334MX/NOPB?
The initial current accuracy is ±3%. - Can the LM334MX/NOPB operate with reverse applied voltages?
Yes, it can handle reverse applied voltages up to 20V, drawing only a few dozen microamperes of current. - What are some common applications of the LM334MX/NOPB?
Common applications include bias networks, surge protection, low power reference, ramp generation, LED driver, temperature sensing, and remote sense applications. - What package types are available for the LM334MX/NOPB?
The LM334MX/NOPB is available in SOIC-8 packages. - How does the LM334MX/NOPB handle ESD susceptibility?
The device has an ESD susceptibility of 2000V. - Can the LM334MX/NOPB be used as a temperature sensor?
Yes, it can be used as a fully specified temperature sensor.
