ST ISA011V1 User Manual

STEVAL-ISA011V1

VIPER12ADIP-E low power AC/DC adapter demonstration board (suitable for the STEVAL-ILL002V1)

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 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.

Data brief

STEVAL-ISA011V1

September 2010

Doc ID 18014 Rev 1

1/4

For further information contact your local STMicroelectronics sales office.

www.st.com

ST ISA011V1 User Manual

Schematic circuit

STEVAL-ISA011V1

 

 

1 Schematic circuit

Figure 1. STEVAL-ISA011V evaluation board schematic

 

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Doc ID 18014 Rev 1

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