The TEA1522 is a low-power switched-mode power supply (SMPS) controller IC from NXP. It features high efficiency, low standby power (< 100 mW), low EMI, and small footprint. The chip can be used for USB chargers, small power supplies, white goods, small personal care equipment, portable equipment chargers, coffee machines, security cameras, and general household appliances.
The TEA1522 demonstration board showcases a compact, low‑cost solution for universal‑mains input (80‑276 V AC) and 5 V output, targeting USB chargers, small power supplies, and other low‑power SMPS designs. It integrates a 650 V MOSFET power switch and secondary‑side regulation with over‑voltage, over‑temperature, short‑winding and demagnetization protection.
Key features include valley‑switching, frequency reduction for high efficiency, low standby power (< 100 mW), built‑in protections, and a small footprint that enables space‑saving designs for a variety of consumer and industrial applications.
| Integrated MOSFET voltage rating | 650 V |
|---|---|
| Input voltage range | 80 V to 276 V AC |
| Maximum output current | 1.2 A |
| Standby power consumption | < 100 mW |
| Efficiency features | High efficiency, valley switching, frequency reduction |
| Protection functions | Over‑current, under‑voltage lock‑out, over‑voltage, over‑temperature, short‑winding, demagnetization |
| Form factor | Small footprint |
It operates directly from a rectified universal mains supply ranging from 80 V to 276 V AC.
The board can deliver up to 1.2 A at the 5 V output.
It includes over‑current protection, under‑voltage lock‑out, over‑voltage, over‑temperature, short‑winding and demagnetization protection.
A 650 V MOSFET power switch is integrated into the board.