Original Part Number: 211PC083S0017
LHE Part Number: 228000820754
Number of Positions: 8
Contact Tab Size Series: 2.8
Size (MM): L:23.7 W:41 H:7.2
Seal or Unseal: Unseal
Overview:
| LHE PN: | 228000820754 |
| 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. |
The negative pressure peak of the switching node is directly related to the overall parasitic inductance LTL of the lower tube loop and the di/dt of the upper tube turned on. The larger the LTL and di/dt, the greater the negative pressure peak of the switching node:
-VSW= LTL*di/dt
Usually, when measuring the voltage of the switching node, the probe ground of the oscilloscope will be placed on the source S pin of the lower tube. In the actual PCB design, the ground of the PWM or driver IC is usually connected to the ground of the input large capacitor. If the probe ground of the oscilloscope is placed on the ground of the input capacitor, the inductance of this loop will be larger, and the measured negative pressure The spikes will be bigger.
