TS3431CIZ-AP

Overview

The TS3431CIZ-AP is a programmable shunt voltage reference manufactured by STMicroelectronics. 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 of 1.24 V with ±0.25% precision at 25°C and operates within an industrial temperature range of -40°C to +125°C. It supports a sink current capability between 0.4 mA and 100 mA. The component is housed in a TO-92 plastic package and is supplied in an ammo pack configuration.

Feature Summary

• Adjustable output voltage settable between 1.24 V and 24 V via external resistors
• High precision accuracy of ±0.25% at 25°C
• Guaranteed temperature stability across the full operating range
• Compatible performance with industry standard TL431

Applications

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

Procurement Notes

Verify the specific suffix 'CIZ-AP' against official documentation to confirm the exact tolerance, package type (TO-92), and packaging format (Ammo pack). Ensure the procurement channel sources directly from authorized distributors or the manufacturer to guarantee authenticity and traceability for this electronic component.

Selection Notes

Select the TS3431CIZ-AP when a precise, low-cost shunt reference is required in through-hole designs. The TO-92 package suits applications where space constraints are less critical than surface-mount alternatives. Verify that the required cathode current falls within the 0.4 mA to 100 mA operational window and that the ±0.25% precision meets the circuit's accuracy requirements.

Part Context

The TS3431 series consists of programmable shunt voltage references designed for general-purpose regulation tasks. This family includes variants with different precision levels and packages, such as SOT23-3L and TO-92. The TS3431CIZ-AP specifically denotes the high-precision version in a through-hole package, offering a robust alternative to surface-mount options for various industrial and consumer electronics applications.

Replacement Considerations

The datasheet states performance compatibility with the industry standard TL431. Designers should verify pinout alignment and electrical specifications before substituting other shunt references.