The Texas Instruments UCC27201A-Q1 is a
high-frequency N-channel MOSFETdriver that includes a 120V bootstrap
diode and high-side / low-side driverwith independent inputs for maximum
control flexibility. This allows forN-Channel MOSFET control in
half-bridge, full-bridge, two-switch forward andactive clamp forward
converters.
The low-side and the
high-side gate drivers are independently controlled andmatched to 1-ns
between the turn-on and turn-off of each other. TheUCC27201A-Q1 is based
on the popular UCC27200 and UCC27201 drivers, but withenhancements. In
order to improve performance in noisy power supplyenvironments the
UCC27201A-Q1 has the ability to withstand a maximum of -18Von its HS
pin.
An on-chip bootstrap diode
eliminates the external discrete diodes.Under-voltage lockout is
provided for both the high-side and the low-sidedrivers forcing the
outputs low if the drive voltage is below the specifiedthreshold. The
UCC27201A-Q1 has TTL-compatible thresholds and is offered inan 8-pin
SOIC with a thermal pad.