GENERAL DESCRIPTION
The TEA1541 is a second generation GreenChipTM(1) Switched Mode Power Supply (SMPS) controller IC that operates directly from the rectified universal mains. A high-level of integration provides a cost-effective power supply requiring only a few external components.

FEATURES
Distinctive features
• Universal mains supply operation (70 to 276 V AC)
• High-level of integration requiring few external components
• Synchronization with internal frequency divider
• Frequency independent over-power protection.

Green features
• Frequency reduction at low power standby for improved system efficiency (<3 W)
• Burst mode operation for very low power standby levels (<1 W)
• On-chip start-up current source.

Protection features
• Safe restart mode for system fault conditions
• Continuous mode protection using demagnetization detection (zero switch-on current)
• Accurate and adjustable overvoltage protection
• Winding short-circuit protection
• Undervoltage protection (foldback during overload)
• Overtemperature protection
• Adjustable low overcurrent protection (OCP) trip level
• Soft (re)start
• Mains voltage-dependent operation-enabling level.