TEA19161T/2Y

Power Supply Controllers, Monitors Overview

The TEA19161T/2Y is a fully digital controller for high-efficiency resonant power supplies, designed specifically for LLC topologies. It operates with a switching frequency of 500 kHz and supports a maximum duty cycle of 67%. The device functions within a supply voltage range up to 19.1 V and delivers an output current capacity of 2 A at 12 V. It utilizes SO-16 surface-mount packaging and operates across a temperature range from -40 °C to +150 °C. Designed as part of a combo system with the TEA19162T PFC controller and TEA1995T SR controller, it enables compliant, low-component-count designs.

Power Supply Controllers, Monitors Feature Summary

• Fully digital control architecture enabling precise primary-side capacitor voltage regulation for accurate power delivery monitoring.
• Integrated low-power mode operating between continuous switching and burst mode to maintain high efficiency at light loads.
• Digital communication interface with the TEA19162T PFC controller for synchronized startup sequences and fast latch reset mechanisms.
• Comprehensive protection suite including overvoltage, overcurrent, open-loop, and thermal protection with safe restart capabilities.

Power Supply Controllers, Monitors Applications

• Desktop and all-in-one computer power supplies
• Liquid crystal display (LCD) televisions
• Laptop adapters
• Printer power systems
• Gaming console power supplies

Power Supply Controllers, Monitors Procurement Notes

Verify the specific ordering suffix /2Y against the manufacturer's latest datasheet to confirm package orientation and reel specifications. Ensure compatibility with the TEA19162T and TEA1995T controllers for the intended resonant topology design. Confirm that the SO-16 SMD package aligns with the target PCB footprint and reflow soldering profiles.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications requiring strict compliance with Energy Star, DoE, and EU Eco-design regulations without auxiliary low-power supplies. It is suitable for designs targeting 90 W to 500 W ranges where minimal external components are preferred. Consider the integrated low-power mode if maintaining efficiency below full load is critical for the application.

Power Supply Controllers, Monitors Part Context

The TEA19161T belongs to NXP's GreenChip series of digital controllers. It is engineered to work in conjunction with the TEA19162T PFC controller and TEA1995T dual synchronous rectifier controller. This combination forms a complete resonant power supply solution that simplifies design complexity while achieving high efficiency across various load conditions.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official NXP resources for potential alternatives or updated revisions within the TEA19161T family.

Power Supply Controllers, Monitors FAQ

How does the TEA19161T achieve high efficiency at low loads?

It utilizes a dedicated low-power mode that operates in the power region between continuous switching and burst mode, regulated via primary-side capacitor voltage to accurately monitor delivered power.

What protection features are integrated into the TEA19161T?

The device includes overvoltage protection (OVP), overcurrent protection (OCP), open-loop protection (OLP), and internal/external overtemperature protection (OTP) with a safe restart mechanism for fault conditions.