ON Semiconductor TL431ACDR2 - Precision Programmable Reference

The TL431ACDR2 from ON Semiconductor is a versatile, precision programmable voltage reference that can be used in a wide array of applications. This three-terminal adjustable shunt regulator is commonly employed in power supplies, battery chargers, and voltage monitoring systems, thanks to its high stability and low output noise characteristics.

With an output voltage range that can be set to any value between 2.495 V and 36 V with two external resistors, the TL431ACDR2 provides excellent design flexibility. The device features a typical dynamic output impedance of 0.2 ohms, which, combined with its fast turn-on response, makes it an ideal choice for responsive voltage regulation tasks.

The TL431ACDR2 guarantees a high level of performance with a typical temperature coefficient of only 50 ppm/°C, ensuring consistent output across a wide temperature range (-40°C to +85°C). This precision, coupled with a typical output voltage tolerance of ±0.5% at 25°C, enables designers to achieve a high degree of accuracy in their power supply designs.

This component is offered in a small outline SO-8 package, designated by the suffix 'CDR2', which is well-suited for space-constrained applications. The compact form factor does not compromise the device's power handling capabilities, as it can handle continuous cathode currents from -100 mA to +150 mA.

ON Semiconductor has designed the TL431ACDR2 with safety in mind, incorporating features such as overcurrent protection and thermal shutdown. These built-in protections help to prevent damage to the device and the circuits it is part of under abnormal conditions, thus enhancing system reliability.

Whether you're designing a new power supply or looking to improve an existing one, the TL431ACDR2 offers a combination of flexibility, precision, and reliability that makes it an excellent choice for your voltage reference needs. Its ease of use and robust feature set ensure that it continues to be a go-to component for engineers and designers across the industry.