This is a product specification sheet that describes the features and characteristics of the TEA1552 GreenChip II SMPS control IC. The IC operates with universal mains supply (70 to 276 V AC) and has a high level of integration, resulting in a low external component count. It incorporates several green features such as valley or zero voltage switching for minimum switching losses, efficient quasi-resonant operation at high power levels, frequency reduction at low power standby for improved system efficiency, and cycle skipping mode at very low loads. It also includes various protection features like safe restart mode, continuous mode protection, overvoltage protection, short winding protection, undervoltage protection, overtemperature protection, and adjustable overcurrent protection. The IC is suitable for applications such as adapters and chargers for laptops, camcorders, printers, and other devices that require efficient and reliable power control.
The TEA1552 is a GreenChip II SMPS control IC designed for compact flyback converters situated at the primary side. It features a high level of integration to minimize external components and supports universal mains supply operation from 70 to 276 V AC. The IC utilizes a proprietary high voltage BCD800 process for direct start-up from rectified mains voltage.
| Mains supply operation range | 70 to 276 V AC |
|---|---|
| No-load power dissipation | < 300 mW |
| Maximum power level | 250 W |
| Package type | SOT108-1 |
| Package name | SOT108-1 |
Typical application areas are adapters and chargers for laptops, camcorders and printers.
The minimum switching frequency is approximately 25 kHz.
Yes, it includes overtemperature protection which is latched.