Overview
The TEA1752LT/N1/S1518, produced by NXP USA Inc., is a highly integrated power management IC designed for efficient and reliable power supply solutions. This component combines a controller for Power Factor Correction (PFC) and a flyback controller, making it suitable for a wide range of applications requiring high efficiency and minimal external components. The TEA1752LT is part of the third generation of green Switched Mode Power Supply (SMPS) controller ICs, emphasizing high efficiency at all power levels.
Key Specifications
| Parameter | Description |
|---|---|
| Topology | QR PFC + QR Flyback |
| Output Power | Up to 250 W |
| Switching Frequency | Up to 250 kHz |
| Package | SO16: plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body |
| Start-up Method | High-voltage start-up from rectified universal mains voltage |
| Protection Features | UnderVoltage LockOut (UVLO), OverVoltage Protection (OVP), latched protection for fault conditions |
Key Features
- High level of integration combining PFC and flyback controllers, reducing the number of external components.
- Quasi-resonant operation at high-power levels and valley skipping at lower power levels for high efficiency.
- Frequency reduction mode at low-power levels to minimize audible noise and maintain high efficiency.
- Multi-Chip Module (MCM) with high-voltage BCD800 process and low-voltage Silicon On Insulator (SOI) for accurate protection and control functions.
- Safe restart protection mechanism to ensure reliable operation during fault conditions.
Applications
The TEA1752LT/N1/S1518 is versatile and efficient, making it suitable for a wide range of power supply applications. These include:
- Consumer electronics requiring high efficiency and reliability.
- Industrial power supplies where minimal external components are beneficial.
- LED lighting systems that demand efficient power management.
- Other applications where green power solutions are essential.
Q & A
- What is the primary function of the TEA1752LT/N1/S1518?
The TEA1752LT/N1/S1518 combines a controller for Power Factor Correction (PFC) and a flyback controller, designed for efficient power supply solutions.
- What is the maximum output power of the TEA1752LT/N1/S1518?
The maximum output power is up to 250 W.
- What is the switching frequency of the TEA1752LT/N1/S1518?
The switching frequency can be up to 250 kHz.
- What type of package does the TEA1752LT/N1/S1518 come in?
The component comes in an SO16 package: plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body.
- How does the TEA1752LT/N1/S1518 start up?
The component starts up directly from the rectified universal mains voltage using a high-voltage BCD800 process.
- What protection features does the TEA1752LT/N1/S1518 have?
The component includes UnderVoltage LockOut (UVLO), OverVoltage Protection (OVP), and latched protection for fault conditions.
- How does the TEA1752LT/N1/S1518 maintain efficiency at low-power levels?
The component switches to frequency reduction mode at low-power levels to minimize audible noise and maintain high efficiency.
- What is the benefit of the Multi-Chip Module (MCM) design in the TEA1752LT/N1/S1518?
The MCM design combines high-voltage BCD800 process and low-voltage Silicon On Insulator (SOI) for accurate protection and control functions.
- How does the safe restart protection mechanism work in the TEA1752LT/N1/S1518?
The safe restart protection mechanism ensures reliable operation during fault conditions by recharging the capacitor using the HV pin and restarting the device.
- In what types of applications is the TEA1752LT/N1/S1518 commonly used?
The component is commonly used in consumer electronics, industrial power supplies, LED lighting systems, and other applications requiring green power solutions.
