The LM334D is a versatile and adjustable current source from STMicroelectronics, a global semiconductor leader. This device is designed to provide a precise current regulation, making it an essential component for a wide range of electronic applications. The LM334D is particularly suitable for battery-operated devices due to its low power consumption and stable operation over a wide range of voltages and temperatures.

Key Features

• Adjustable Output: The current can be set from microamps to milliamps with a simple external resistor (Rset).
• Wide Operating Voltage: Functions effectively across a broad voltage range of 1V to 40V.
• Low Temperature Coefficient: Temperature stability is maintained through a low temperature coefficient, typically around ±0.6% per degree Celsius.
• Three-Terminal Device: Simplicity in design is achieved with a three-terminal fixed current source, similar to a Zener diode.

Applications

The LM334D is used in a variety of applications where a reliable current source is required. These include:

• Battery chargers
• Power supply circuits
• LED drivers
• Current regulators for biasing sensors and transducers
• Temperature sensing and control

Technical Specifications

The LM334D is offered in an SO-8 package, which is suitable for automated assembly and compatible with various PCB layouts. This product is designed to meet the stringent quality and reliability standards that STMicroelectronics is known for. With its robust design and flexible characteristics, the LM334D stands out as a practical solution for current regulation needs across various industries.