Overview
The TEA19161T/1518, produced by NXP USA Inc., is a fully digital controller designed for high-efficiency resonant power supplies. This controller is part of a comprehensive solution that includes the TEA19162T power factor control (PFC) controller and the TEA1995T dual SR controller, enabling the construction of a complete resonant power supply with a very low component count. The TEA19161T meets stringent efficiency regulations such as those set by Energy Star, the Department of Energy (DoE), the Eco-design directive of the European Union, and the European Code of Conduct, among others. This ensures high efficiency at all power levels, including low loads, thanks to its innovative low-power mode operation.
Key Specifications
| Parameter | Description |
|---|---|
| Controller Type | Fully digital controller for LLC resonant power supplies |
| Supply Voltages | High-voltage supply pin for start-up (SUPHV), general supply pin (SUPIC), accurate regulated voltage pin (SUPREG), and floating supply for high-side driver (SUPHS) |
| Operating Modes | Burst mode, low-power mode, and high-power mode with adjustable transition levels |
| Protection Features | Overcurrent protection (OCP), overvoltage protection (OVP), open-loop protection (OLP), capacitive mode regulation (CMR), internal and external IC overtemperature protection (OTP), and more |
| Communication Interface | Digital control interface for start-up and protection communications |
| Compatibility | Designed to cooperate with TEA19162T PFC controller and TEA1995T dual SR controller |
Key Features
- High efficiency at all power levels, including low loads, due to the low-power mode operation
- Regulation of output power by adjusting the voltage across the primary resonant capacitor for accurate state control and linear power control
- External presets for defining operation modes and protections, providing flexibility and ease of design
- Integrated drivers, level shifter, and protections, including zero-voltage switching circuitry
- Fast latch reset mechanism and safe restart mode for system fault conditions
- Low supply current during non-switching state in burst mode and adjustable transitions between modes and power levels
Applications
The TEA19161T is suitable for a wide range of applications requiring high-efficiency resonant power supplies, such as:
- Consumer electronics with stringent energy efficiency standards
- Industrial power supplies where high reliability and efficiency are critical
- Medical devices requiring precise and efficient power management
- Telecommunication equipment and data centers where power efficiency is paramount
Q & A
- What is the primary function of the TEA19161T controller?
The TEA19161T is a fully digital controller for high-efficiency resonant power supplies, specifically designed for LLC (Inductor-Inductor-Capacitor) resonant converters.
- How does the TEA19161T regulate output power?
The TEA19161T regulates output power by adjusting the voltage across the primary resonant capacitor, providing accurate state control and linear power control.
- What are the different operating modes of the TEA19161T?
The TEA19161T operates in burst mode, low-power mode, and high-power mode, with adjustable transition levels between these modes.
- What protection features are integrated into the TEA19161T?
The TEA19161T includes overcurrent protection (OCP), overvoltage protection (OVP), open-loop protection (OLP), capacitive mode regulation (CMR), and internal and external IC overtemperature protection (OTP), among others.
- How does the TEA19161T communicate with other components?
The TEA19161T contains a digital control interface for communications about start-up and protections.
- What other controllers is the TEA19161T designed to work with?
The TEA19161T is designed to cooperate with the TEA19162T PFC controller and the TEA1995T dual SR controller.
- What efficiency standards does the TEA19161T meet?
The TEA19161T meets efficiency regulations such as those set by Energy Star, the Department of Energy (DoE), the Eco-design directive of the European Union, and the European Code of Conduct.
- Why is the low-power mode important in the TEA19161T?
The low-power mode ensures high efficiency at low loads, which is crucial for meeting stringent energy efficiency standards.
- How does the TEA19161T handle system fault conditions?
The TEA19161T includes a safe restart mode for system fault conditions and a fast latch reset mechanism.
- What are some typical applications for the TEA19161T?
The TEA19161T is suitable for consumer electronics, industrial power supplies, medical devices, and telecommunication equipment where high efficiency and reliability are required.
