Data Brief
For further information contact your local STMicroelectronics sales office.
November 2007 Rev 1 1/4
4
STEVAL-ISA019V1
80 W ESBT
®
quasi-resonant wide range SMPS evaluation board
with L6565 for 3-phase applications
Features
■ 3-phase 80 W auxiliary output SMPS
■ Quasi-resonant SMPS
■ Input: 180 V
AC
600 V
AC
■ Output voltage 24 V, 3.3 A
■ Maximum output power 80 W
■ Efficiency > 80%
■ Switching frequency > 50 kHz
■ Safety compliant according EN60950
■ Feedback: secondary regulation
Description
This evaluation board is a 3-phase auxiliary power
supply with an 80 W dual output SMPS, using the
L6565 PWM driver and the STC04IE170HV ESBT
as the main switch. The combination of these ST
devices provides a high-efficiency solution for high
DC input voltage, a typical requirement for any
three-phase application. The necessity to handle
both high output power and wide input voltage is
satisfied using a flyback stage working in mixed
operation mode: discontinuous and continuous.
STEVAL-ISA019V1
www.st.com
