LM385BPW-1-2

Overview

The LM385BPW-1-2 is a micropower shunt voltage reference manufactured by Texas Instruments, housed in an 8-pin TSSOP surface-mount package. It provides a fixed nominal output voltage of 1.235 V with an initial accuracy of ±1%. The device features a low temperature coefficient of 20 ppm/°C and supports a maximum shunt current of 20 mA. It operates within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Provides a stable 1.235 V reference voltage suitable for precision applications
• Offers high initial accuracy of ±1% for reliable circuit performance
• Features a low temperature coefficient of 20 ppm/°C for thermal stability
• Designed for micropower operation with a wide shunt current capability up to 20 mA

Applications

• Precision data acquisition systems
• Portable instrumentation requiring stable voltage references
• Battery-powered measurement devices
• Calibration equipment needing accurate voltage standards

Procurement Notes

Verify the specific suffix 'B' indicates the ±1% accuracy grade and 'PW' denotes the TSSOP-8 package before ordering. Confirm that the component status is End-of-Life as indicated in distributor records, ensuring availability matches project timelines. Check RoHS compliance details against specific revision levels if required for regulatory adherence.

Selection Notes

Select this component when a fixed 1.235 V reference with tight initial tolerance is required in a surface-mount format. The TSSOP-8 package offers space efficiency compared to through-hole options. Ensure the application current remains within the 20 mA limit and the operating temperature stays between 0°C and +70°C for specified performance.

Part Context

This part belongs to the LM385 family of micropower shunt voltage references from Texas Instruments. It shares core electrical characteristics with other variants like the LM385BLP-1-2 but differs in packaging and accuracy grading. The 'B' grade typically signifies tighter initial accuracy than standard grades, while the 'PW' suffix specifies the thin-shrink small-outline package.

Replacement Considerations

The LM385BPWR-1-2 is a reel-packaged variant of the same electrical specification. For through-hole needs, the LM385BLP-1-2 offers identical electrical performance in a TO-226-3 package. Verify pinout compatibility and thermal dissipation requirements when substituting packages.