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The STCH02 is a PWM quasi resonant controller specifically designed for ultra-low standby power supplies.
The built-in HV start-up cell with zero power consumption, the fully integrated blocks for primary side constant current output regulation and the advanced power management make this IC the best choice to build a high efficiency and ultra-low standby consumption power supply, with high overall and excellent dynamic performances.
Key Features
- Advanced power management for ultra-low standby power consumptions (under 10 mW at 230 Vac)
- Fully integrated primary side constant current output regulation (CC)
- 650 V embedded HV start-up circuit with zero power consumption.
- Quasi resonant (QR) zero voltage switching (ZVS) operation
- Automatic self-supply
- Accurate and adjustable output OVP with autorestart after fault
- Input voltage feedforward compensation for mains-independent CC regulation
- Intelligent frequency jitter for EMI suppression
- SO-8 package
Sample & Buy
| Part Number | Package | Packing Type | Marketing Status | Budgetary Price (US$)* | Quantity | ECCN (US) | Country of Origin | Order from Distributors | Order from ST |
|---|---|---|---|---|---|---|---|---|---|
| STCH02 | SO-8 | Tube | NRND | 0.43 | 1000 | EAR99 | - | Check Availability | Buy now |
| STCH02TR | SO-8 | Tape And Reel | NRND | 0.43 | 1000 | EAR99 | - | Check Availability | Buy now |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
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Evaluation Tools
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Picture Part number Manufacturer Description 
STEVAL-ISA193V2 ST 15 W, 5 V - 3 A output CC primary sensing USB adapter based on STCH02 Part Number15 W, 5 V - 3 A output CC primary sensing USB adapter based on STCH02
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| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STCH02 | NRND | SO-8 | Industrial | Ecopack2 | |
| STCH02TR | NRND | SO-8 | Industrial | Ecopack2 |
(**) 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.
