LM334Z/LFT1

Current Regulation/Management Overview

The LM334Z/LFT1 is a three-terminal adjustable current source manufactured by Texas Instruments. It operates within an input voltage range of 800 mV to 40 V and supports a maximum operating current of 10 mA. The device features an initial accuracy of 3% and functions across a temperature range from -40°C to +85°C. Packaged in a TO-92-3 through-hole configuration, it serves as a precision current reference for power management applications.

Current Regulation/Management Feature Summary

• Provides stable current regulation with high dynamic voltage range capability
• Operates as a true floating current source without requiring separate power connections
• Supports bidirectional operation suitable for rectifier and AC applications

Current Regulation/Management Applications

• Bias networks for electronic circuits
• LED driver circuits
• Temperature sensing systems
• Surge protection mechanisms

Current Regulation/Management Procurement Notes

Verify the specific suffix LFT1 against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with required operating temperatures and current ranges. Cross-reference manufacturer part numbers to avoid confusion with similar series components like LM334Z/NOPB.

Current Regulation/Management Selection Notes

Select this component when a precise, adjustable current source is required in a compact through-hole package. Consider the 3% accuracy and wide voltage range for applications demanding stable current regulation under varying load conditions. Verify thermal performance requirements against the specified operating temperature limits.

Current Regulation/Management Part Context

This device belongs to the LM334 family of programmable shunt regulators and current sources. It shares functional similarities with other members of the series but offers specific packaging and tolerance characteristics defined by its model designation. It is designed for integration into power management and signal conditioning circuits.

Current Regulation/Management Replacement Considerations

LM334Z/NOPB is a direct replacement option offering equivalent functionality with RoHS compliance. Other variants in the LM334 series may provide different accuracy grades or packaging options depending on specific design constraints.