Overview
The TEA1552T/N1,118 is a high-voltage start-up flyback controller designed by NXP USA Inc. for use in Discontinuous Conduction Mode (DCM) or Quasi-Resonant (QR) mode. This integrated circuit (IC) is part of the GreenChipII family and is known for its high level of integration, which minimizes the need for external components. The TEA1552T is particularly suited for applications requiring efficient and cost-effective power supply solutions up to 250 W.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Start-up current source (pin DRAIN) | VCC = 0 V; VDRAIN > 100 V | 1.0 | 1.2 | 1.4 | mA |
| Breakdown voltage (BVDSS) | 650 | V | |||
| Mains-dependent operation-enabling level | 60 | 100 | V | ||
| Start-up voltage on VCC | 10.5 | 14.5 | V | ||
| Output voltage (pin VCC(5V)) | IO = 1 mA | 4.75 | 5.0 | 5.25 | V |
| Current capability of pin VCC(5V) | -1.0 | mA | |||
| LOCK trip level (pin LOCK) | 2.37 | 2.5 | 2.63 | V | |
| Package | SO14 plastic small outline package; 14 leads |
Key Features
- Universal mains supply operation (70 V AC to 276 V AC)
- High level of integration, reducing the need for external components
- Low and adjustable overcurrent protection trip level
- Soft (re)start capability
- Mains voltage-dependent operation-enabling level
- General purpose input for lock protection
- Standby output signal
- 125 kHz oscillator frequency
Applications
The TEA1552T is typically used in adapters and chargers for devices such as laptops, camcorders, and printers. It is also suitable for any application that requires an efficient and cost-effective power supply solution up to 250 W.
Q & A
- What is the operating voltage range of the TEA1552T?
The TEA1552T operates on a universal mains supply from 70 V AC to 276 V AC. - What is the typical application of the TEA1552T?
The TEA1552T is commonly used in adapters and chargers for devices like laptops, camcorders, and printers. - What is the package type of the TEA1552T?
The TEA1552T comes in a SO14 plastic small outline package with 14 leads. - What is the breakdown voltage (BVDSS) of the TEA1552T?
The breakdown voltage (BVDSS) is 650 V. - What is the start-up current source from pin DRAIN?
The start-up current source from pin DRAIN is between 1.0 mA and 1.4 mA when VCC = 0 V and VDRAIN > 100 V. - What is the output voltage of pin VCC(5V)?
The output voltage of pin VCC(5V) is between 4.75 V and 5.25 V at IO = 1 mA. - Does the TEA1552T have adjustable overcurrent protection?
Yes, the TEA1552T has low and adjustable overcurrent protection. - What is the LOCK trip level of the TEA1552T?
The LOCK trip level is between 2.37 V and 2.63 V. - What is the oscillator frequency of the TEA1552T?
The oscillator frequency is 125 kHz. - Does the TEA1552T support soft start?
Yes, the TEA1552T supports soft (re)start capability.
