General description

The TEA2016AAT is a digital configurable LLC and PFC combo controller for highefficiency

resonant power supplies. It includes both the LLC controller functionality and

PFC controller operating in DCM and QR mode. The TEA2016AAT enables building a

complete resonant power supply which is easy to design and has a very low component

count. The TEA2016AAT comes in a low profile and narrow body-width SO16 package.

The TEA2016AAT digital architecture is based on a high-speed configurable hardware

state machine ensuring very reliable real-time performance. During the power supply

development, many operation and protection settings of the LLC and PFC controller

can be adjusted by loading new settings into the device to meet specific application

requirements. The configurations can be fully secured to prevent unauthorized copying of

the proprietary TEA2016AAT configuration content.

In contrast to traditional resonant topologies, the TEA2016AAT shows a very high

efficiency at low loads due to the low-power mode. This mode operates in the power

region between continuous switching (also called high-power mode) and burst mode.

Because the TEA2016AAT regulates the output voltage of the system via the primary

capacitor voltage, it has accurate information about the power delivered to the output.

This measured output power defines the mode of operation (burst mode, low-power

mode, or high-power mode). The transition levels of the operating modes can be easily

programmed into the device.

The TEA2016AAT contains all protections like overtemperature protection (OTP),

overcurrent protection (OCP), overvoltage protection (OVP), overpower protection (OPP),

open-loop protection (OLP), and capacitive mode regulation (CMR). Each of these

protections can be configured independently and accurately by programming parameters

inside the device.

The device contains both a low-voltage and high-voltage silicon technology for highvoltage

start-up, integrated drivers, level shifter, protections, and circuitry assuring zerovoltage

switching.

The TEA2016AAT/TEA2095T combination gives an easy to design, highly efficient, and

reliable power supply, providing 90 W to 500 W, with a minimum of external components.

The system provides a very low no-load input power (< 75 mW; total system including the

TEA2016AAT/TEA2095T combination) and high efficiency from minimum to maximum

load. This power supply meets the efficiency regulations of Energy Star, the Department

of Energy, 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.

Features and benefits

2.1 Distinctive features

• Complete functionality of LLC and PFC controller in single small-size SO16 package

• Integrated high-voltage start-up

• Integrated drivers and high-voltage level shifter (LS)

• High-side driver directly supplied from the low-side driver output (patent nr

82059363US01)

• Accurate boost voltage regulation

• Integrated X-capacitor discharge without additional external components

• Power good function

• Several parameters can easily be configured, like:

– Operating frequencies to be outside the audible area at all operating modes

– Soft start and soft stop in burst mode, reducing the audible noise

– Accurate transition levels between operation modes (high-power mode/low-power

mode/burst mode)

2.2 Green features

• Valley/zero voltage switching for minimum switching losses

• Extremely high efficiency from low load to high load

• Compliant with latest energy-saving standards and directives (Energy Star, EuP)

• Excellent no-load input power (< 75 mW for TEA2016AAT/TEA2095T combination)

2.3 Protection features

• Independently configurable levels and timers

• All protections can independently be set to latched, safe restart, or latched after several

attempts to restart (Patent nr. 82096505US01)

• Supply undervoltage protection (UVP)

• Overpower protection (OPP)

• Internal and external overtemperature protection (OTP)

• Capacitive mode regulation (CMR)

• Accurate overvoltage protection (OVP)

• Overcurrent protection (OCP)

• Inrush current protection (ICP)

• Brownin/brownout protection

• Disable input

Applications

• Desktop and all-in-one PCs

• Gaming power supplies

• Notebook adapter and general-purpose adapters

• Printers

• UHD LED television