EVLSRK1000A-TO Active

SRK1000A adaptive synchronous rectification controller for flyback converter demonstration board with STF80N10F7
Core ProductSRK1000A
Target ApplicationPower Supplies by Application
ECCN USEAR99
ECCN EUNEC
Packing TypeNot Applicable
ROHS Compliance GradeEcopack1
GradeIndustrial
Package NameCARD
Key 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

The EVLSRK1000A-TO is a demonstration board, designed for evaluation of the SRK1000A synchronous rectification controller.


The SRK1000A 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.

In stock:
$18.38
Range Unit Price Savings
1 - 500$18.380%
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