LM134H

Current Regulation/Management Overview

The LM134H is a three-terminal adjustable current source manufactured by Texas Instruments, belonging to the LM134 series. It operates within an input voltage range of 800 mV to 40 V and draws a typical operating supply current of 10 mA. The device provides high accuracy with a specified tolerance of 3%. It supports both high-side and low-side sensing configurations and is designed for through-hole installation in a TO-3 package. The component functions reliably across an extended temperature range from -55°C to +125°C.

Current Regulation/Management Feature Summary

• Three-terminal adjustable current source architecture
• Supports high-side or low-side sensing configurations
• Wide operating voltage range from 800 mV to 40 V
• Extended industrial temperature capability

Current Regulation/Management Applications

• Precision current references
• Current regulation circuits
• Temperature sensor biasing
• LED driver constant current sources

Current Regulation/Management Procurement Notes

Verify the specific suffix against official documentation to confirm exact specifications. Ensure the TO-3 through-hole package matches the target PCB layout requirements. Confirm RoHS compliance status as indicated in the manufacturer's datasheet before finalizing procurement decisions.

Current Regulation/Management Selection Notes

Select this component when a robust, high-voltage adjustable current source is required. The TO-3 package offers significant thermal dissipation capabilities suitable for higher power applications. Consider the 3% accuracy specification for circuit precision requirements and verify the wide temperature range meets environmental constraints.

Current Regulation/Management Part Context

The LM134H is part of the LM134/LM234/LM334 family of three-terminal adjustable current sources produced by Texas Instruments. This series is widely recognized for its versatility in providing stable current outputs over a broad voltage and temperature range, serving as a fundamental building block in analog signal processing and power management designs.

Current Regulation/Management Replacement Considerations

LM234H and LM334H are direct functional substitutes within the same family, differing primarily in temperature grade specifications.