STEVAL-ISA011V1 STMicroelectronics

STEVAL-ISA011V1 VIPER12ADIP-E low power AC/DC adapter demonstration board (suitable for the STEVAL-ILL002V1) Data brief Features Minimum AC input voltage = 88 Vrms Maximum AC input voltage = 265 Vrms Max output power = 4.1 W Output voltage = 4.5 V Max output current = 900 mA Efficiency (at full load and 230 Vac) = 70 % Efficiency (at full load and 115 Vac) = 70 % Description The STEVAL-ISA011V1 demonstration board is a STEVAL-ISA011V1 low power (4.1 W output), general purpose adapter. The design is based on the VIPER12ADIP-E monolithic device which, in the same package, integrates the high voltage power switch and the basic control function needed for a current mode flyback converter. The board can handle a wide range AC input voltage, from 88 Vac to 265 Vac, with one output voltage of 4.5 V delivering a maximum output current of 900 mA. The main applications for this board are auxiliary power supplies and wall-plug adapters. September 2010 Doc ID 18014 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 Obsolete Product(s) - Obsolete Product(s) ) Schematic circuit STEVAL-ISA011V1 1 Schematic circuit Figure 1. STEVAL-ISA011V evaluation board schematic - 5 N 5 N 9 3UHFLVLRQ 5HVLVWRU 3UHFLVLRQ 5HVLVWRU 5 N & Q) 5XE FRQ 9 0%= & P) 5 N 8 7/ 8 3& 6736 8 5 7 N 5 1 & 5 N : 5 ( 9 & Q) )% 6 677+ 5 6 & 9 8 < Q) S) 9 LSHU & & E ) P+ 5 N / ) 9 & D & FDS )& ) P 17& 9 %ULGJH - &21 , 2/4 Doc ID 18014 Rev 1 Obsolete Product(s) - Obsolete Product(s) 9