L
legg
Two more mosfet rectifier controllers in the last few months:
LM5050 from National Semiconductor is a 6-pin orring controller
introduced in Oct 2010, with functionality similar to LTC4357, but no
attempt of pin-pin compatability. It adds diagnostic functions via the
6th pin.
LM5050-2 data: http://www.national.com/ds/LM/LM5050-2.pdf
LM5050 app: http://www.national.com/an/AN/AN-2051.pdf
FAN6204 also makes a late entry from Fairchild/Samsung, an SO8 with
functionality similar to ZXGD3101, with near pin-pin compatability. It
prescribes external resistors to the drain voltage sensing pin.
FAN6204 data: http://www.fairchildsemi.com/ds/FA/FAN6204.pdf
Modeling the simple normally-off rectifier controller (or any other)
becomes interesting when package parasitics are included. A T0220 or
D2, for example, can show between 5 and 10nH on gate and source pins.
All those spice simulations where anything happens in 10s of
nanoseconds???? fugedabaddit!
RL
LM5050 from National Semiconductor is a 6-pin orring controller
introduced in Oct 2010, with functionality similar to LTC4357, but no
attempt of pin-pin compatability. It adds diagnostic functions via the
6th pin.
LM5050-2 data: http://www.national.com/ds/LM/LM5050-2.pdf
LM5050 app: http://www.national.com/an/AN/AN-2051.pdf
FAN6204 also makes a late entry from Fairchild/Samsung, an SO8 with
functionality similar to ZXGD3101, with near pin-pin compatability. It
prescribes external resistors to the drain voltage sensing pin.
FAN6204 data: http://www.fairchildsemi.com/ds/FA/FAN6204.pdf
Modeling the simple normally-off rectifier controller (or any other)
becomes interesting when package parasitics are included. A T0220 or
D2, for example, can show between 5 and 10nH on gate and source pins.
All those spice simulations where anything happens in 10s of
nanoseconds???? fugedabaddit!
RL
