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Part Number: UCC5350 Other Parts Discussed in Thread: SN6501
Tool/software:
Hello, please tell me...datasheet ucc5350 page four Figure 5-1, 5-2, 5-3 are the Vcc2 and Vee2 contacts accidentally mixed up??? Thanks for the answer.
Figures 5-1,2,3 show the correct pinout for the device. I agree that this pinout is frustrating since they are inverted vs. the input side! It makes it harder to swap between gate drivers in a layout.
You can disable the driver by tying IN- high or by tying IN+ low. There is also a UVLO under voltage lock out circuit that will disable the driver if the input or output power supplies fall below a threshold. There is not a designated disable pin.
if i use N- when passing pulse to mosfet, can i ground N+ and put driver in shutdown mode??? or using N- to pass pulse to mosfet, should i give high level to N- to turn off??? Thanks for reply,
Hello. Is it possible for ucc5350M to work adequately in the upper arm of the half-bridge if different power is supplied to the primary and secondary sides. Namely, the secondary side Vcc2 "+15V" Vee2 "- 5 V"??? Thank you.
Yes, you can use a different power supply for the secondary upper side. You can use a SN6501 and a small transformer to supply 15V above the switch node phase voltage.
