The EVLSRK1000-TO is a demonstration board, designed for evaluation of the SRK1000 synchronous rectification controller.
The SRK1000 implements a control scheme specific for secondary-side synchronous rectification in flyback converters and provides high-current gate-drive outputs for driving the 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 (TO220FP package) and can be easily implemented into an existing converter to substitute rectifier diodes.
主要特性
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器件 | 類型 | 描述 | 數(shù)據(jù)手冊(cè) |
---|---|---|---|
SRK1000 | 同步整流控制器 | 自適應(yīng)同步整流控制器,用于反激轉(zhuǎn)換器 | 點(diǎn)擊下載 |
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