STEVAL-ISA192V1
Active7 W DUAL OUTPUT FLYBACK CONVERTER WITH STANDBY MANAGED BY CAPACITIVE TOUCH USING VIPER0P AND STM32L
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STEVAL-ISA192V1
Active7 W DUAL OUTPUT FLYBACK CONVERTER WITH STANDBY MANAGED BY CAPACITIVE TOUCH USING VIPER0P AND STM32L
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Technical Specifications
Parameters and characteristics for this part
| Specification | STEVAL-ISA192V1 |
|---|---|
| Contents | Board(s) |
| Current - Output | 400 mA, 800 mA |
| Frequency - Switching | 60 kHz |
| Main Purpose | AC/DC, Primary Side |
| Outputs and Type | 2 Non-Isolated Outputs |
| Power - Output | 7 W |
| Regulator Topology | Flyback |
| Utilized IC / Part | VIPer0P |
| Voltage - Input [Max] | 265 VAC |
| Voltage - Input [Min] | 85 VAC |
| Voltage - Output | -5 V, 7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 8 | $ 63.71 | |
Description
General part information
STEVAL-ISA192V1 Series
This offline converter key feature is the zero power mode (ZPM), an idle state during which the device is totally shut down. The IC enters ZPM by pulling the OFF pin to SGND for more than 10 ms and exits ZPM (resuming normal switching) by pulling the ON pin to SGND for more than 20 μs. This function can be tested via the tactile switches connected to the ON and OFF pins.
In ZPM the mains power consumption at 230 VACcan be below 5 mW; the STEVAL-ISA192V1 evaluation board consumption is 30 mW due to the MCU polling strategy implemented at firmware level.
The board has a dual output (i.e., - 5 V and + 7 V based on flyback topology). The negative output is obtained by just connecting EAGND to the negative rail and a voltage divider among FB, EAGND and SGND. The positive output derives from the turn ratio of the transformer secondary windings.
Documents
Technical documentation and resources