August 2009 Doc ID 16146 Rev 1 1/4
4
STEVAL-ISA058V1
5 W single output SMPS demonstration board
based on the VIPer17 off-line high voltage converter
Features
■ Input voltage range: 90 V
AC
to 265 V
AC_RMS
■
Output voltage: 5 V
■ Maximum output current: 1 A
■ RoHS compliant
Description
The STEVAL-ISA058V1 demonstration board is a
5 W off-line power supply designed as an
evaluation platform for the VIPer17 offline high
voltage converter.
The VIPer17 features an 800 V rugged power
section, PWM control, two levels of overcurrent
protection, overvoltage and overload protection,
hysteretic thermal protection, soft-start and safe
auto-restart after fault condition removal. Burst
mode operation and the very low consumption of
the device help to meet standby energy saving
regulations. Advance frequency jittering reduces
EMI filter cost. A brown-out function protects the
switch mode power supply when the rectified
input voltage level is below the normal minimum
level specified for the system. A high voltage
startup circuit is embedded in the device.
STEVAL-ISA058V1
www.st.com
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