NXP TEA2017AAT digital configurable LLC and multi-mode PFC controller. TEA2017AAT is a digitally configurable LLC and PFC combination controller designed for efficient resonant power supplies. It includes LLC and PFC controller functions. PFC can be configured to operate in DCM/QR, CCM fixed frequency, or multi-mode that supports all operating modes, optimizing PFC efficiency. The TEA2017ABT version includes PFC that only supports DCM/QR operations, while the LLC phase is the same as TEA2017AAT.
All TEA2017xxT versions are capable of building a complete resonant power supply, with a simple power supply design and a small number of components. TEA2017xxT adopts a small narrow strip SO16 package.
The TEA2017xxT digital architecture is based on high-speed configurable hardware state machines, ensuring reliability and real-time performance. In the process of power development, various operations and protection settings of LLC and PFC controllers can be adjusted by loading new settings to the device to meet specific application requirements. The proprietary TEA2017xxT configuration content cannot be copied without authorization, ensuring configuration security.
Compared with traditional resonant topologies, TEA2017xxT exhibits very high efficiency at low loads due to the use of LLC low-power mode. This mode operates within the power range between continuous switching (also known as high-power mode) and intermittent mode.
The main features of NXP TEA2017AAT digital configurable LLC and multi-mode PFC controllers are:
- Complete functionality of LLC and PFC controllers packaged in small SO16 packages
Integrated high-voltage starting source
Integrated driver and high voltage level converter (LS)
The high side driver is directly provided by the output of the high side driver
Accurate voltage boosting and stabilization
PFC can be configured to operate in the following modes:
DCM/QR (TEA2017ABT)
DCM/QR/CCM (also known as mixed mode operation) (applicable only to TEA2017AAT)
CCM fixed frequency (applicable only to TEA2017AAT)
Integrated X-capacitor discharge without the need for additional external components
Good functionality of power supply
PFC jitter for optimizing EMI performance
Excellent power factor (PF) and total harmonic distortion (THD), as PFC current compensates for input filter current
During the evaluation period, multiple parameters can be easily configured using a graphical user interface (GUI), such as:
The operating frequency in all working modes is outside the audio range
The burst mode adopts soft start and soft stop to reduce audible noise
Accurate switching of energy levels between various operating modes (high power mode/low power mode/burst mode)
Enable/Disable Low Power Mode
NXP TEA2017AAT digital configurable LLC and multi-mode PFC controller environmental features:
- Minimum switching loss achieved through valley/zero voltage switching
The efficiency of transitioning from low load to high load is very high
Compliant with the latest energy-saving standards and directives (Energy Star, EuP)
Excellent no-load input power (for TEA2017xxT/TEA2095T combination, its power is less than 75mW)
NXP TEA2017AAT digital configurable LLC and multi-mode PFC controller protection features:
Independently configurable levels and timers
All protections can be independently set to latch, secure restart, or locked after multiple attempts to restart
Power undervoltage protection (UVP)
Overpower protection (OPP)
Internal and External Overheating Protection (OTP)
Capacitive mode regulation (CMR)
Accurate Overvoltage Protection (OVP)
Overcurrent protection (OCP)
Surge current protection (ICP)
Power on/off protection
Disable input
NXP GreenChip
This product is part of NXP GreenChip's product portfolio, which aims to optimize energy efficiency for mobile computing applications, focusing on high power density, functional safety, and reliability.
