Overview
The TEA19161T/1Y, produced by NXP USA Inc., is a fully digital controller designed for high-efficiency resonant power supplies. It is part of a comprehensive solution that includes the TEA19162T PFC controller and the TEA1995T dual SR controller, enabling the construction of a complete resonant power supply with a very low component count. This controller meets various efficiency regulations, including those set by Energy Star, the Department of Energy (DoE), the Eco-design directive of the European Union, and the European Code of Conduct. The TEA19161T/1Y is particularly notable for its high efficiency at low loads, achieved through its newly introduced low-power mode, which operates between continuous switching (high-power mode) and burst mode.
Key Specifications
| Parameter | Description |
|---|---|
| Controller Type | Fully digital LLC (Half-Bridge Converter) controller |
| Operating Frequency | Up to 500 kHz |
| Package Type | 16-pin SOIC |
| Power Control | Regulates output power by adjusting the voltage across the primary resonant capacitor |
| Operating Modes | High-power mode, low-power mode, and burst mode |
| Protection Features | Overcurrent protection (OCP), overvoltage protection (OVP), open-loop protection (OLP), capacitive mode protection (CMP), and internal/external IC overtemperature protection (OTP) |
| Communication Interface | Digital control interface for start-up and protection communications |
| Efficiency Standards | Meets Energy Star, DoE, EU Eco-design directive, and European Code of Conduct efficiency regulations |
Key Features
- High Efficiency: Achieves high efficiency at all power levels, including low loads, through its low-power mode and burst mode operations.
- Digital Control: Fully digital controller for precise output power control, start-up, initializations, and protections.
- Flexible Operation Modes: Operates in high-power mode, low-power mode, and burst mode, with transitions adjustable via external presets.
- Comprehensive Protection: Includes overcurrent protection (OCP), overvoltage protection (OVP), open-loop protection (OLP), capacitive mode protection (CMP), and internal/external IC overtemperature protection (OTP).
- Zero-Voltage Switching: Ensures zero-voltage switching through high-voltage silicon-on-insulator (SOI) controller and integrated drivers.
- Low Component Count: Part of a system that requires a very low component count, making it easy to design and implement.
Applications
The TEA19161T/1Y is suitable for a wide range of applications requiring high efficiency over the entire power range, from no load to maximum output load. These include:
- Power Supplies: High-efficiency power supplies for various electronic devices, especially those requiring compliance with stringent efficiency regulations.
- Consumer Electronics: Devices such as TVs, computers, and other consumer electronics that benefit from high-efficiency power conversion.
- Industrial Equipment: Industrial power supplies and equipment that demand reliable and efficient power conversion.
- Medical Devices: Medical equipment that requires high-efficiency and reliable power supplies.
Q & A
- What is the primary function of the TEA19161T/1Y controller?
The TEA19161T/1Y is a fully digital controller for high-efficiency resonant power supplies, specifically designed for LLC (Half-Bridge Converter) applications.
- How does the TEA19161T/1Y achieve high efficiency at low loads?
The controller achieves high efficiency at low loads through its low-power mode and burst mode operations, which reduce power losses and maintain efficiency.
- What are the key protection features of the TEA19161T/1Y?
The controller includes overcurrent protection (OCP), overvoltage protection (OVP), open-loop protection (OLP), capacitive mode protection (CMP), and internal/external IC overtemperature protection (OTP).
- How does the TEA19161T/1Y regulate output power?
The controller regulates output power by adjusting the voltage across the primary resonant capacitor, providing accurate state control and linear power control.
- What is the significance of the low-power mode in the TEA19161T/1Y?
The low-power mode operates between continuous switching (high-power mode) and burst mode, ensuring high efficiency at medium and low power levels by reducing magnetization and switching losses.
- Can the TEA19161T/1Y be used in combination with other controllers?
Yes, the TEA19161T/1Y is designed to work in combination with the TEA19162T PFC controller and the TEA1995T dual SR controller to form a complete resonant power supply system.
- What efficiency standards does the TEA19161T/1Y comply with?
The controller complies with various efficiency standards, including Energy Star, DoE, EU Eco-design directive, and the European Code of Conduct.
- How does the TEA19161T/1Y ensure zero-voltage switching?
The controller ensures zero-voltage switching through its high-voltage silicon-on-insulator (SOI) controller and integrated drivers.
- What is the typical package type for the TEA19161T/1Y?
The typical package type for the TEA19161T/1Y is a 16-pin SOIC.
- Does the TEA19161T/1Y support digital communication for start-up and protections?
Yes, the controller includes a digital control interface for start-up and protection communications.
