STMicroelectronics EVLSRK1000-PF Demonstration Board
STMicroelectronics EVLSRK1000-PF Demonstration Board is designed to evaluate the SRK1000 synchronous rectification controller. The STMicroelectronics SRK1000 adaptive controller implements a control scheme for secondary-side synchronous rectification in flyback converters and provides high-current gate-drive outputs for driving N-channel power MOSFET.
The EVLSRK1000-PF can operate in quasi-resonant and fixed frequency (FF) mixed DCM-CCM applications. The board is provided with a setting suitable for QR applications. The device can be used in FF applications with a 100pF capacitor added in C4. A 68kΩ resistor (R5) is provided on the TON pin that fixes the blanking after the turn-on to about 0.8μs. The EVLSRK1000-PF includes the SR MOSFET FDMS86103L (PowerFLAT 5 x 6 package) and can be easily implemented into an existing converter to substitute rectifier diodes.
Features
- Synchronous rectifier for flyback converter, with fixed turn-on and adaptive turn-off
- 3.5V to 32V VCC range
- DVS max. operating voltage 90V
- 500kHz Max. frequency
- Internal gate-drive for N-channel MOSFET
- FDMS86103L logic level (100V - 12mΩ) PowerFLAT 5 x 6 package SR MOSFET type
Assoicated products
onsemi PowerTrench® MOSFETs
Broad portfolio of N-channel and P-channel versions for low RDS(ON) switching performance.
STMicroelectronics SRK1000 Switching Controller
Adaptive synchronous rectification controller for a flyback converter.
Electrical Schematic
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STMicroelectronics Standard Products
A broad range of drop-in replacements for general-purpose analog ICs, discretes, and serial EEPROMs.