ST ISA071V1 User Manual
STEVAL-ISA071V1
4 W non-isolated, wide input-voltage range SMPS demonstration board based on the VIPER16
Features
■Input:
–VIN: 85 - 264 Vrms
–f: 45 - 66 Hz
■Output:
–12 VDC ± 10% (referred to -5 V), 160 mA
–-5 VDC ± 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
Data brief
STEVAL-ISA071V1
■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.
June 2010 |
Doc ID 17294 Rev 2 |
1/4 |
For further information contact your local STMicroelectronics sales office. |
www.st.com |
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Schematic diagram |
STEVAL-ISA071V1 |
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1 Schematic diagram
Figure 1. STEVAL-ISA071V1 circuit schematic
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2/4 |
Doc ID 17294 Rev 2 |
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