Original Part Number: 1564562-4
LHE Part Number: 402021
Number Of Positions: /
Contact Tab Size Series: Part
Thickness of PCB Board: 1.5MM
Overview:
| LHE PN: | 402021 |
| Certification: | TUV, IATF16949, ISO14001, ISO9001, CQC, UL, ROHS |
| MOQ: | Most product not have MOQ, Small order can be accepted. |
| Sample service: | Free Samples |
| Delivery Time: | 3-5 Days |
| Quality Control | All goods will be 100% inspected before dispatched |
| Payment: | T/T, Western Union, MoneyGram, PayPal; 30% deposits; 70% balance before delivery. |
| Shipment: | DHL/FedEx/TNT/UPS/EMS/Aramex/SF for samples, By Air or by Sea for batch goods; Airport/ Port receiving. |
Check the saturation current of the power MOSFET
Different PFC controllers, VCC has different UVLO values, check the UVLO value of the VCC of the PFC controller used, then, VGS=UVLO, check the saturation current IDUVLO of the power MOSFET VGS=UVLO, make sure that IDUVLO is greater than the current sampling resistor The set maximum current value has a certain margin at the same time, and this maximum current value is the saturation current under the actual maximum operating junction temperature. The saturation current of high-voltage power MOSFETs with superjunction structure is generally low, and the saturation current decreases with the increase of junction temperature.
● On-region characteristics of high-voltage MOSFETs
● Transfer characteristics of high-voltage MOSFETs
● Gate charge characteristics of high-voltage MOSFETs
The lower the UVLO value of the VCC of the PFC controller, the lower the saturation current of the power MOSFET at the highest junction temperature, and the greater the possibility of linear region failure under the above conditions. The graph of Fig. 7 gives the saturation current of the power MOSFET in great detail, especially the graph of saturation current and temperature of Fig. 7(b), very important.
