TO-247 4pin package
A new innovative package using Kelvin source concept
With new generations of power switches becoming faster and faster, the effect of the parasitic elements of package and board limit more and more the overall system performance. An effective measure to overcome this problem is to provide an additional connection to the source (Kelvin connection), that is used as a reference potential for the gate driving voltage, thereby eliminating the effect of voltage drops over the source inductance. The achievable efficiency improvement, resulting from faster switching transients, can in fact be significant.
Infineon offers the TO-247 4pin in conjunction with the 600V and 650V CoolMOS™ C7 superjunction (SJ) MOSFETs. With the 600V CoolMOS™ P6 SJ MOSFET Infineon introduces an improved version of the standard TO-247 4pin package. The TO-247 4pin with asymmetric leads comes along with increased creepage distance between the critical leads and enables smoother wave soldering and reduced board yield loss.
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