ALTAIR05T-800TR

Overview

The ALTAIR05T-800TR is an off-line all-primary-sensing switching regulator from STMicroelectronics, packaged in a 16-pin SO-16N (SO16N) surface-mount format. It integrates a high-performance PWM controller with an 800 V avalanche rugged power section. The device operates directly from rectified mains with a minimum input voltage of 11.5 V and a maximum of 23 V for the control circuitry, supporting a maximum output current of 1 A. It utilizes quasi-resonant operation at a switching frequency of 166 MHz and employs a flyback topology. The component functions within a temperature range of -25°C to 150°C.

Feature Summary

• Provides constant voltage and constant current regulation without requiring secondary side components or optocouplers.
• Features an 800 V avalanche rugged internal power section integrated with a low voltage PWM controller.
• Includes automatic self-supply and input-voltage feedforward for mains-independent constant current regulation.

Applications

• Off-line power supply solutions for home plug systems
• Wide range CV-CC optoless adapters
• Power line communication system power supplies

Procurement Notes

Verify the specific suffix TR indicates reel packaging when sourcing. Confirm RoHS compliance status through official datasheets. Ensure the SO-16N package dimensions match design constraints. Check for automotive qualification requirements if applicable, as standard versions may not be certified.

Selection Notes

Select this component for designs requiring elimination of optocouplers to reduce bill of materials. Suitable for applications needing tight regulation during heavy load transients. Consider the 800 V rating for high-voltage offline applications. Evaluate thermal performance given the 150°C junction temperature limit.

Part Context

This part belongs to the ALTAIR05T series of all-primary sensing switchers. It is distinct from LED drivers like the HVLED805, focusing on general AC/DC conversion rather than dedicated lighting control. The TR suffix denotes tape and reel packaging for automated assembly.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical specifications before considering alternative manufacturers.

FAQ

Does the ALTAIR05T-800 require an optocoupler for feedback?

No, it uses an all-primary sensing technique to provide accurate output voltage and current regulation without any secondary side components or optocouplers.

What is the voltage rating of the internal power section?

The internal power section is rated for 800 V and is avalanche rugged.