Product overview
Description
STSR30 Smart Driver IC provides a high current outputs to properly drive secondary Power Mosfets used as Synchronous Rectifier in low output voltage, high efficiency Flyback Converters. From a synchronizing clock input, withdrawn on the secondary side of the isolation transformer, the IC generates a driving signal with set dead times with respect to the primary side PWM signal.
The IC operation prevents secondary side shoot-through conditions at turn-on of the primary switch providing anticipation in turn-off the output. This smart function is implemented by a fast cycle-after-cycle logic control mechanism, based on a high frequency oscillator synchronized by the clock signal. This anticipation is externally set through external component. A special Inhibit function, detecting the voltage across the Synchronous FET, allows to shut-off the drive output during discontinuous mode condition. A Disable pin allows turning off the device during no-load condition reducing overall current consumption.
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All features
- POSSIBILITY TO OPERATE IN DISCONTINUOUS MODE
- SUPPLY VOLTAGE RANGE: 4V TO 5.5V
- OPERATING FREQUENCY: 20 TO 500 KHz
- TYPICAL PEAK OUTPUT CURRENT: (SOURCE-SINK: 1.5A)
- AUTOMATIC TURN OFF FOR DUTY-CYCLE LESS THAN 14%
- INHIBIT BLANKING TIME: 700 ns
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STSR30
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Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STSR30D | NRND | SO-8 | Industrial | Ecopack2 | |
| STSR30D-TR | 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.
Sample & Buy
| Part Number | Order from distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| STSR30D-TR | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tape and Reel | SO-8 | -40 | 125 | CHINA | | ||
| STSR30D | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | SO-8 | -40 | 125 | CHINA | | ||
Buy Direct at ST (*) 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