LM385B-1.2

Overview

The TAEJIN LM385B-1.2 is a micropower shunt voltage reference IC providing a fixed output of 1.235 V. It operates within a cathode current range of 10 μA to 20 mA, with specific documentation noting a minimum of 15 μA for the LM385 series. The device features an initial accuracy of ±1% and a maximum temperature coefficient of 150 ppm/°C. It is housed in a TO-92 package and supports commercial operating temperatures from 0°C to 70°C.

Feature Summary

• On-chip trimming ensures tight voltage tolerance
• Band-gap reference design offers low noise
• Provides long-term stability

Applications

• Amplifier circuits
• Power supply references
• Micropower voltage regulation

Procurement Notes

Verify manufacturer origin as TAEJIN or Texas Instruments equivalents. Confirm package type is TO-92. Check operational temperature range against application requirements. Ensure compliance with RoHS standards if required by the end product specifications.

Selection Notes

Select this component for applications requiring a stable 1.235 V reference with low power consumption. The ±1% accuracy suits precision analog circuits. Consider the TO-92 package for through-hole mounting constraints. Verify thermal management needs within the specified operating temperature range.

Part Context

This part belongs to the LMx85 family of micropower voltage references. It shares architectural similarities with the LM285 and LM385 series, differing primarily in accuracy grades and temperature ranges. The B-grade designation typically indicates tighter initial voltage tolerances compared to standard variants.

Replacement Considerations

LM385-1.2: Standard grade variant with potentially wider tolerance. LM285-1.2: Industrial temperature range version. LM385BM-1.2/NOPB: Surface mount SOIC-8 equivalent from Texas Instruments.