Overview
The TEA1552T/N1,518 is a high-voltage start-up flyback controller designed by NXP USA Inc. This IC is part of the GreenChip™ II series and is optimized for use in adapters and chargers, as well as other applications requiring efficient and cost-effective power conversion up to 250 W. The controller supports both Discontinuous Conduction Mode (DCM) and Quasi-Resonant (QR) mode, ensuring high efficiency across various power levels.
Key Specifications
| Parameter | Conditions | Min | 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 (M-level) | - | 60 | - | 100 | V |
| Supply voltage management (pin VCC) - Start-up voltage | - | - | - | 11 | V |
| 5 V output (pin VCC(5V)) | IO = 1 mA | 4.75 | 5.0 | 5.25 | V |
| LOCK input (pin LOCK) - LOCK trip level | - | 2.37 | 2.5 | 2.63 | V |
| Driver (pin Driver) - Source current capability | VCC = 9.5 V; VDRIVER = 2 V | -170 | -88 | - | mA |
| Driver (pin Driver) - Sink current capability | VCC = 9.5 V; VDRIVER = 2 V | - | 300 | - | mA |
| Temperature protection - Maximum temperature protection level | - | 130 | 140 | 150 | °C |
| Operating Temperature | - | -20 | - | 145 | °C (TJ) |
| Switching Frequency | - | 25 kHz | - | 125 kHz | - |
| Package / Case | - | - | - | 14-SOIC (0.154", 3.90mm Width) | - |
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
- Optimized efficiency at all power levels with built-in green functions
- Support for both Discontinuous Conduction Mode (DCM) and Quasi-Resonant (QR) mode
- Fault protection features including current limiting, over power, over temperature, and short circuit protection
- Internal temperature protection with hysteresis
Applications
The TEA1552T/N1,518 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 conversion solution up to 250 W.
Q & A
- What is the operating voltage range of the TEA1552T/N1,518?
The TEA1552T/N1,518 operates on a universal mains supply from 70 V AC to 276 V AC.
- What are the key protection features of the TEA1552T/N1,518?
The IC includes protection features such as current limiting, over power, over temperature, and short circuit protection.
- What is the maximum power output of the TEA1552T/N1,518?
The maximum power output is up to 250 W.
- What are the typical applications of the TEA1552T/N1,518?
Typical applications include adapters and chargers for laptops, camcorders, and printers, as well as other applications requiring efficient power conversion.
- What is the switching frequency range of the TEA1552T/N1,518?
The switching frequency range is from 25 kHz to 125 kHz.
- What is the package type of the TEA1552T/N1,518?
The IC is packaged in a 14-SOIC (0.154", 3.90mm Width) package.
- Does the TEA1552T/N1,518 support both DCM and QR modes?
Yes, it supports both Discontinuous Conduction Mode (DCM) and Quasi-Resonant (QR) mode).
- What is the breakdown voltage of the TEA1552T/N1,518?
The breakdown voltage (BVDSS) is 650 V).
- What is the operating temperature range of the TEA1552T/N1,518?
The operating temperature range is from -20°C to 145°C (TJ)).
- Does the TEA1552T/N1,518 have internal temperature protection?
Yes, it includes internal temperature protection with hysteresis).
