Product overview
Description
The EVLSRK1000B-TO is a demonstration board, designed for evaluation of the SRK1000B synchronous rectification controller.
The SRK1000B implements a control scheme specific for secondary-side synchronous rectification in flyback converters and provides high-current gate-drive outputs for driving N-channel power MOSFET.
The device can operate both in quasi-resonant applications and in fixed frequency (FF) mixed DCM-CCM applications. The board is provided with a setting suitable for QR applications. To use in FF applications, a 100 pF capacitor needs to be added in C4. A 68 kΩ resistor (R5) is provided on the TON pin that fixes the blanking after the turn-on to about 0.8 μs.
The board includes the SR MOSFET (TO-220FP package) and can be easily implemented into an existing converter to substitute rectifier diodes.
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All features
- Synchronous rectifier for flyback converter, with fixed turn-on and adaptive turn-off
- VCC range: 3.5 V to 32 V
- DVS max. operating voltage 90 V
- Max. frequency: 500 kHz
- Internal gate drive for N-channel MOSFET
- SR MOSFET type: STF80N10F7 (100 V - 10 mΩ) TO-220FP
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All resources
| Resource title | Version | Latest update |
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Board Manufacturing Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 26 Oct 2018 | 26 Oct 2018 |
Bill of Materials (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 26 Oct 2018 | 26 Oct 2018 |
Schematic Pack (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 26 Oct 2018 | 26 Oct 2018 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | WEEE Compliant | Material Declaration** |
|---|---|---|---|---|---|---|
| EVLSRK1000B-TO | Active | CARD | Industrial | Ecopack1 | - | |
EVLSRK1000B-TO
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 | Order from distributors | Order from ST | Core Product | Marketing Status | Supplier | ECCN (US) | ECCN (EU) | Country of Origin | Board production status | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EVLSRK1000B-TO | distributors No availability of distributors reported, please contact our sales office | SRK1000B | Active | - | EAR99 | NEC | ITALY | - | |
(*) 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