Hello Guys,
Good day.
We have a customer looking for similar devices with UCC12050 but has higher output voltages around 12V or 9V.
Are there alternative parts he can purchase?
Thanks in advance!
Art
Art,
UCC12050 is the perfect HS, 5 V, EGaN, HEMT driver bias. The reason the LDO is needed because the bias line is often not well regulated and/or the bias line has capacitance that can be problematic in high dV/dt switching environments. Another lesser known fact is that most 5 V GaN operate better near 6 V but operating this close to ABS MAX VGS can only happen with a well regulated, robust and reliable bias solution. UCC12050 has a programmable VISO output through pin strapping that can be set as high as 5.4 V which is closer to the sweet spot for 5 V GaN.
UCC12050 has internal soft start with no overshoot at start up, 3.5 pF isolation capacitance, with 1.5% load regulation and 1 % line regulation and CMTI=100 V/ns, 5 kV isolation...all perfect for biasing HS GaN gate drivers.
UCC12050 will not be able to meet the 12 V requirement - is that for TI GaN such as LMG341xR050? Here's a diagram of UCC12050 used to bias the digital isolator and HS GaN driver:
Delete the LDO and please give UCC12050 a second consideration?
Regards,
Steve M
