Datasheet

Data brief
For further information contact your local STMicroelectronics sales office.
June 2010 Doc ID 17294 Rev 2 1/4
4
STEVAL-ISA071V1
4 W non-isolated, wide input-voltage range SMPS
demonstration board based on the VIPER16
Features
■ Input:
–V
IN
: 85 - 264 V
rms
– f: 45 - 66 Hz
■ Output:
– 12 V
DC
± 10% (referred to -5 V), 160 mA
–-5 V
DC
± 4%, 400 mA
■ Maximum output power: 4 W (for EU range up
to 6 W)
■ Standby: 70 mW at 230 VAC
■ Short-circuit protected
■ Isolation: non-isolated; N connected to output
GND
■ EMI: in accordance with EN55022 class B
■ RoHS compliant
Description
The STEVAL-ISA071V1 switched-mode power
supply (SMPS) demonstration board is dedicated
to mains applications requiring -5 V and +7 V
referred to neutral. The non-isolated SMPS is
capable of delivering 4 W of output power over a
wide input voltage range. This capability can also
be applied to higher power outputs or different
voltage ranges.
The SMPS generates 5 V and 12 V. The 5 V can
be used to supply the MCU, directly driving a Triac
connected to neutral, and the 12 V can be used to
supply additional circuits, such as relays, OAs,
etc.
STEVAL-ISA071V1
www.st.com
Obsolete Product(s) - Obsolete Product(s)