Original Part Number: 3-1703843-1
LHE Part Number: 115000311445
Number of Positions: 3
Contact Tab Size Series: 1.5
Size (MM): L:47.05 W:37.5 H:29.8
Seal or Unseal: Seal
Overview:
| LHE PN: | 115000311445 |
| 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. |
IC ground terminal series resistance
The series resistance between the ground terminal of the PWM or the driver IC and the ground terminal of the input capacitor can also reduce the negative voltage current. In practical applications, this method is not recommended.
A voltage regulator is connected in parallel between the SW pin of the IC and the ground
A voltage regulator tube is connected in parallel between the SW pin of the PWM or driver IC and the ground. The voltage regulator tube requires the distance to be as close to the pin as possible, and the response speed must meet the requirements. In practical applications, the shunt voltage regulator tube is not always is valid.
Different resistors are connected in series outside the gate of the upper tube. Measurement conditions: Vin=19V, Vo=1V, Vdri=12V, fsw=900kHz, L=250nH, the measured VSW negative voltage spike, the efficiency curve does not include the loss of drive and inductor .
