STEVAL-ISA193V1

The STEVAL-ISA193V1 from STMicroelectronics is an evaluation board implements a 15W USB adapter with primary sensing CC feature. It is based on the STCH02 current mode controller designed for offline quasi-resonant flyback converters, capable of providing constant output current (CC) regulation using primary-sensing feedback. The IC embeds a 650V, non-dissipative, HV start-up cell which along with the extremely low quiescent current and burst-mode management, helps minimize residual input consumption, thus achieving less than 10mW under no-load conditions. The adapter is designed to meet the most stringent energy saving recommendations as well as EN55022-Class-B Conducted noise emissions. The extremely small form factor and the output USB connector makes this reference design suitable for small USB chargers and adapters for mobile phones, tablets and other hand held equipment.

• Universal AC main input voltage range from 90VAC to 264VAC
• Output range 5V at 3A continuous operation
• Constant voltage (CV) and constant current (CC) operation with CC primary sensing
• Input power in standby is less than 10mW at 230VAC
• Average efficiency is greater than 81.84%, complies with EuCoC rev. 5 Tier 2 and EPS of DOE USA
• EMI according to EN55022-Class-B
• Small form factor of 44mm x 35mm x 15mm