Overview
The TEA1753T/N1,518 is a highly integrated Switched Mode Power Supply (SMPS) controller IC produced by NXP USA Inc. This component combines a controller for Power Factor Correction (PFC) and a flyback controller, making it ideal for designing cost-effective and efficient power supplies. The TEA1753T utilizes NXP's proprietary high-voltage BCD800 process and Silicon On Insulator (SOI) technology, enabling direct start-up from the rectified universal mains voltage and providing accurate, high-speed protection functions. This IC is particularly suited for applications requiring high efficiency at all power levels, including quasi-resonant operation and reduced frequency operation at lower power levels.
Key Specifications
| Parameter | Description |
|---|---|
| Package | SO16 plastic, small outline package; 16 leads; 1.27 mm pitch |
| Power Rating | Up to 250 W |
| Operation Modes | Quasi-resonant (QR), Discontinuous Conduction Mode (DCM), and valley skipping |
| Protection Features | Safe restart mode, continuous mode protection with demagnetization detection, overvoltage protection (OVP) |
| Power Down Mode | Activated for very low standby power applications, with internal circuitry disabled except for voltage detection |
| High-Voltage Start-Up | Direct start-up from rectified universal mains voltage using high-voltage BCD800 process |
| Control Inputs/Outputs | Auxiliary winding input for demagnetization timing, frequency compensation pin for PFC, mains voltage sense input, PFC and flyback gate-driver outputs, etc. |
Key Features
- Integrated PFC and flyback controller for high efficiency and cost-effectiveness
- Quasi-resonant operation with valley skipping for high-power levels and reduced frequency operation at lower power levels
- Safe restart mode and continuous mode protection with demagnetization detection for robust fault handling
- Power-down mode for very low standby power applications, minimizing audible noise and power consumption
- High-voltage start-up capability from rectified universal mains voltage using BCD800 process
- Accurate, high-speed protection functions using SOI technology
Applications
The TEA1753T/N1,518 is suitable for a wide range of power supply applications, including but not limited to:
- Consumer electronics such as TVs, monitors, and audio equipment
- Industrial power supplies requiring high efficiency and reliability
- Medical devices needing precise power management
- Telecommunication equipment and data centers
- LED lighting systems and other energy-efficient lighting solutions
Q & A
- What is the TEA1753T/N1,518 used for? The TEA1753T/N1,518 is used as a highly integrated SMPS controller IC for designing efficient and cost-effective power supplies.
- What are the key operation modes of the TEA1753T? The TEA1753T operates in quasi-resonant (QR), Discontinuous Conduction Mode (DCM), and valley skipping modes.
- What protection features does the TEA1753T offer? The TEA1753T includes safe restart mode, continuous mode protection with demagnetization detection, and overvoltage protection (OVP).
- How does the TEA1753T handle low-power conditions? During low-power conditions, the TEA1753T switches to frequency reduction mode and limits the peak current to an adjustable minimum value to maintain high efficiency and minimize audible noise.
- What is the power rating of the TEA1753T? The TEA1753T is rated for power supplies up to 250 W.
- What package type does the TEA1753T come in? The TEA1753T comes in a SO16 plastic, small outline package with 16 leads and a 1.27 mm pitch.
- How does the TEA1753T achieve high-voltage start-up? The TEA1753T achieves high-voltage start-up directly from the rectified universal mains voltage using NXP's proprietary BCD800 process.
- What is the purpose of the power-down mode in the TEA1753T? The power-down mode is activated for very low standby power applications, disabling internal circuitry except for voltage detection to minimize power consumption.
- What technologies are used in the TEA1753T for protection and control? The TEA1753T uses Silicon On Insulator (SOI) technology for accurate, high-speed protection functions and the BCD800 process for high-voltage operations.
- What types of applications is the TEA1753T suitable for? The TEA1753T is suitable for consumer electronics, industrial power supplies, medical devices, telecommunication equipment, and LED lighting systems among others.
