W
Winfield Hill
NSC has introduced a power MOSFET gate driver, the LM5110-1,
which has an extra power-supply pin that can be operated at
ground or as low as -5 volts. This is the low-side voltage
of the FET gate driver, so the gate can be driven up to 5V
below ground. http://www.national.com/pf/LM/LM5110.html
NSC announced the LM5110-1 as the "Industry's first dual 5A
MOSFET gate driver with negative Vgs capability," which is
a statement with quite a few qualifiers. My question, are
there any other gate driver ICs with a negative Vgs supply
pin? Some driver ICs allow the FET source to go negative
for a short time, such as Intersil's HIP4080 series, but I
can't recall another high-current driver IC with a -Vee pin.
Thanks,
- Win
whill_at_picovolt-dot-com
which has an extra power-supply pin that can be operated at
ground or as low as -5 volts. This is the low-side voltage
of the FET gate driver, so the gate can be driven up to 5V
below ground. http://www.national.com/pf/LM/LM5110.html
NSC announced the LM5110-1 as the "Industry's first dual 5A
MOSFET gate driver with negative Vgs capability," which is
a statement with quite a few qualifiers. My question, are
there any other gate driver ICs with a negative Vgs supply
pin? Some driver ICs allow the FET source to go negative
for a short time, such as Intersil's HIP4080 series, but I
can't recall another high-current driver IC with a -Vee pin.
Thanks,
- Win
whill_at_picovolt-dot-com