STEVAL-ISA111V1 STMicroelectronics

STEVAL-ISA111V1 Wide-range single-output demonstration board based on the VIPER26HN Data brief Features Universal input mains range: input voltage 90 - 264 V AC frequency 45 - 65 Hz Single-output voltage: 12 V at 1 A continuous operation Standby mains consumption: < 30 mW at 230 V AC Average efficiency: > 80% Fully protected against faults (overload, feedback disconnection and overheating) STEVAL-ISA111V1 EMI: according to EN55022-Class-B RoHS compliant Description The STEVAL-ISA111V1 demonstration board is a 12 V, 1 A power supply set in non-isolated flyback topology using the VIPER26HN, the new offline high voltage converter by STMicroelectronics. The features include an 800 V avalanche rugged power section, PWM operation at 115 kHz with frequency jittering for lower EMI, current limiting with adjustable set point, onboard soft-start, a safe auto-restart after a fault condition and a low standby power. The protections include thermal shutdown with hysteresis, delayed overload protection, and open loop failure protection. December 2012 Doc ID 023970 Rev 1 1/9 For further information contact your local STMicroelectronics sales office. www.st.com 9Adapter features STEVAL-ISA111V1 1 Adapter features Table 1. Electrical specifications Symbol Parameter Value V Input voltage range 90 V - 265 V IN AC AC V Output voltage 12 V OUT I Max. output current 1 A OUT V Precision of output regulation 5% OUT LF V High frequency output voltage ripple 50 mV OUT HF o T Max. ambient operating temperature 60 C AMB 2/9 Doc ID 023970 Rev 1