Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.
SO-8.pngSynchronous Controller
Contact Sales
Log in or register to manage email notifications about changes to datasheets or PCNs for this part.
ZXGD3105N8 synchronous controller is designed for driving a MOSFET as an ideal rectifier. This is to replace a diode for increasing the power transfer efficiency. The device is comprised of a differential amplifier detector stage and high current driver. The detector monitors the reverse voltage of the MOSFET such that if body diode conduction occurs a positive voltage is applied to the MOSFET’s Gate pin. Once the positive voltage is applied to the Gate the MOSFET switches on allowing reverse current flow. The detectors’ output voltage is then proportional to the MOSFET Drain-Source voltage and this is applied to the Gate via the driver. This action provides a rapid MOSFET turn off as Drain current decays to zero.
Flyback and Resonant Converters in:
| AEC Qualified | Yes |
|---|---|
| Compliance (Only Automotive supports PPAP) | Standard |
| Supply Voltage VCC (V) | 25 V |
| Quiesent Supply Current (mA) | 1.56 mA |
| Drain Voltage VD (V) | 100 V |
| Mode of Operation | DCM CrCM CCM |
| Switching Frequency (MHz) | ≤500 kHz |
| Proportional Gate Drive Control (Y|N) | Yes |
| Turn-On Time TON (ns) | 118 ns |
| Turn-OffThresholdVoltage (mV) | 10 mV |
| Turn-Off Delay Time TOFF (ns) | 14 ns |
| Gate Source Current ISOURCE (A) | 4 A |
| Gate Sink Current ISINK (A) | 9 A |
