Digital Controller 16-Pin SOIC T/R

The TEA19161T is a fully digital controller for high-efficiency resonant power supplies. Together with the TEA19162T PFC controller and the TEA1995T dual SR controller, a complete resonant power supply can be built which is easy to design and has a very low component count. This power supply meets the efficiency regulations of Energy Star, the Department of Energy (DoE), the Eco-design directive of the European Union, the European Code of Conduct, and other guidelines. So, any auxiliary low-power supply can be omitted. In contrast to traditional resonant topologies, the TEA19161T (LLC) shows a high efficiency at low loads due to the newly introduced low-power mode. This mode operates in the power region between continuous switching (also called high-power mode) and burst mode. Because the TEA19161T is regulated via the primary capacitor voltage, it has accurate information about the power delivered to the output. The measured output power defines the mode of operation (burst mode, low-power mode or high-power mode). A configuration pin can easily set the transition levels of the operating modes. The TEA19161T contains a low-voltage die with a fully digital controller for output power control, start-up, initializations, and protections. These protections include OverCurrent 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, level shifter, protections, and circuitry assuring zero-voltage switching. The TEA19161T is designed to cooperate with the TEA19162T Power Factor Control (PFC) controller. For communications about start-up and protections, the TEA19161T contains a digital control interface. The digital control enables a fast latch reset mechanism. It maximizes the overall system efficiency at low output power levels by setting the TEA19162T to operate in burst mode.

• Distinctive features
  • Complete functionality as a combination with TEA19162T
  • 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
  • Operating frequencies are outside the audible area at all operating modes
  • Integrated soft start
  • Power good function
  • Maximum 500 kHz half-bridge switching frequency
• Green features
  • Extremely high efficiency from low load to high load
  • Compliant with Energy using Product directive (EuP) lot 6
  • Excellent no-load input power (< 75 mW for TEA19161T combination)
  • Regulated low optocurrent, enabling low no-load power consumption
  • Very low supply current during non-switching state in burst mode
  • Transition between different operation modes (high-power/low-power/burst mode) occur at integrated, externally adjustable power levels
  • Adaptive non-overlap time
• Protection features
  • Supply UnderVoltage Protection (UVP)
  • OverPower Protection (OPP)
  • Integrated adjustable overpower time-out
  • Adjustable latch or restart function for OverPower Protection
  • On-chip OverTemperature 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