The UCC27712 is
a 620-V high-side and low-side gate driver with 1.8-A source, 2.8-A sink current, targeted to drive
power MOSFETs or IGBTs.
The recommended VDD operating voltage is 10-V to 20-V for IGBTs and 10-V to 17-V for
The UCC27712 includes protection features where the outputs are held low when the inputs
are left open or when the minimum input pulse width specification is not met. Interlock and
deadtime functions prevent both outputs from being turned on simultaneously. In addition, the
device accepts a wide range bias supply range from 10 V to 22 V, and offers UVLO protection for
both the VDD and HB bias supply.
Developed with TIs state of the art high-voltage device technology, the device features
robust drive with excellent noise and transient immunity including large negative voltage tolerance
on its inputs, high dV/dt tolerance, wide negative transient safe operating area (NTSOA) on the
switch node (HS), and interlock.
The device consists of one ground-referenced channel (LO) and one floating channel (HO)
which is designed for operating with bootstrap or isolated power supplies. The device features fast
propagation delays and excellent delay matching between both channels. On the UCC27712, each
channel is controlled by its respective input pins, HI and LI.
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