Product overview
Description
The STEVAL-ISA105V1 demonstration board implements a power supply based on a quasi-resonant mode of operation using ST primary side ALTAIR04-900 flyback switch.
The ALTAIR04-900 is a high-voltage all-primary sensing switcher intended for operating directly from the rectified mains with minimum external parts. It combines a high-performance low voltage PWM controller chip and a 900 V avalanche-rugged power section in the same package.
The controller is a current-mode specifically designed for offline quasi-resonant flyback converters. The device is capable of providing constant output voltage using all primary sensing feedback. This eliminates the need for the optocoupler, the secondary voltage reference, as well as the current sensor, while still maintaining quite accurate regulation.
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All features
- Min. operating voltage Vacmin: 90 Vac
- Max. operating voltage Vacmax: 265 Vac, 440 Vmax
- Topology: quasi-resonant flyback converter, primary side regulation
- Mains frequency fL: 50 Hz +/-3 Hz
- Input/output isolation: yes, Galvanic isolation >2.7 KV
- Nominal output voltage:
- 5 V/70 mA nominal, 1 A max.
- 3.3 V/30 mA nominal, 150 mA max.
- 12 V/2 mA nominal, 100 mA max.
- 5 V_ISO/2 mA nominal, 80 mA max.
- Total output power Pout: 1 W nominal, 7.5 W (during transmission mode)
- Typical efficiency @ 230 Vac: > 75%
- Output voltage pk-pk ripple: < 100 mV
- Protection: short-circuit protection
- Reflected voltage of transformer, VR: 100 V
- RoHS compliant
Recommended for you
All resources
| Resource title | Version | Latest update |
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Board Manufacturing Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 01 Aug 2015 | 01 Aug 2015 |
Bill of Materials (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 01 Aug 2015 | 01 Aug 2015 |
Schematic Pack (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 01 Aug 2015 | 01 Aug 2015 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | WEEE Compliant | Material Declaration** |
|---|---|---|---|---|---|---|
| STEVAL-ISA105V1 | Active | CARD | Industrial | Ecopack2 | - | |
STEVAL-ISA105V1
Package:
CARDMaterial Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | Board production status | |
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| STEVAL-ISA105V1 | | | distributors No availability of distributors reported, please contact our sales office |
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STEVAL-ISA105V1 Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors