TS3431BIZ

Overview

The TS3431BIZ is a programmable shunt voltage reference manufactured by STMicroelectronics, housed in a TO-92 plastic package. It provides an adjustable output voltage ranging from 1.24 V to 24 V using an external resistor bridge. The device features a reference input voltage accuracy of ±0.5% at 25°C and operates within a temperature range of -40°C to +125°C. Key electrical parameters include a cathode operating current of 0.4 mA to 100 mA, a maximum cathode-to-anode voltage of 25 V, and a temperature coefficient of 100 ppm/°C.

Feature Summary

• Adjustable output voltage capability between 1.24 V and 24 V via external resistors
• Guaranteed temperature stability across the full industrial operating range
• High precision initial accuracy with ±0.5% tolerance at 25°C

Applications

• Computers
• Instrumentation
• Battery chargers
• Switch mode power supplies
• Battery operated equipment

Procurement Notes

Verify the specific ordering suffix 'Z' corresponds to the TO-92 plastic package configuration when sourcing components. Confirm that the procurement specification aligns with the required ±0.5% precision level associated with the B suffix. Ensure the supply chain documentation explicitly references the STMicroelectronics manufacturer for the TS3431 series to guarantee compliance with the published datasheet specifications.

Selection Notes

Select the TS3431BIZ when space constraints allow for through-hole mounting and a TO-92 package is preferred over surface-mount alternatives. This variant is suitable for designs requiring ±0.5% initial accuracy and operation up to 125°C. Consider the SOT23-3L package if board space is limited, as it offers identical electrical performance in a smaller footprint.

Part Context

The TS3431 series serves as a programmable shunt voltage reference designed for general-purpose applications. It is electrically compatible with industry-standard TL431 devices. The family includes multiple precision grades and packaging options, providing flexibility for various design requirements while maintaining consistent core functionality and reliability standards.

Replacement Considerations

TS3431BILT is a parameter-equivalent alternative available in the SOT23-3L surface mount package.