The TEA19161T is a fully digital controller for high-efficiency resonant power supplies. In contrast to traditional resonant topologies, the TEA19161T shows a high efficiency at low loads due to the newly introduced low-power mode. TEA19161T contains a low-voltage die with a fully digital controller for output power control, start-up, initializations, and protection. These protections include Over Current Protection (OCP), OverVoltage Protection (OVP), Open-Loop Protection (OLP), and Capacitive Mode Regulation (CMR). It also contains a high-voltage Silicon-On-Insulator (SOI) controller for high-voltage start-up, integrated drivers, a level shifter, protections, and circuitry assuring zero-voltage switching.

The TEA19161T provides 90 W to 500 W, with a minimum of external components. The system provides low no-load input power and high efficiency from minimum to maximum load. So, any additional low-power supply can be omitted, ensuring a significant system cost-saving and highly simplified power supply design.

Product features:

• Integrated high-voltage start-up

• Integrated high-voltage level shifter (LS)

• Extremely fast start-up (< 500 ms at Vmains = 100 V (AC))

• Continuously VSUPIC regulation via the SUPHV pin during start-up and protection, allowing minimum SUPIC capacitor values

• Integrated soft start

• Power good function

• Maximum 500 kHz half-bridge switching frequency

• Extremely high efficiency from low load to high load

• Regulated low onto current, enabling low no-load power consumption

• Very low supply current during the non-switching state in burst mode

• Adaptive non-overlap time

• Supply under voltage protection (UVP)

• OverPower protection (OPP)

• Integrated adjustable overpower time-out

• Adjustable latch or restart function for over-power protection

• On-chip over temperature protection (OTP)

• Capacitive mode regulation (CMR)

• Accurate overvoltage Protection (OVP)

• Maximum on-time protection for low-side and high-side driver output

• OverCurrent Protection (OCP)

• Disable input