1 Features
• Drives two N-channel MOSFETs in half-bridge
configuration
• AEC-Q100 qualified for automotive applications:
– Device temperature grade 1
• –40°C to +150°C junction temperature range
• 120V abs max voltage on HB pin
• 3.7A sink, 4.5A source output currents
• 8V to 17V VDD operating range (20V abs max)
with UVLO
• –(28–VDD)V abs max negative transient tolerance
on HS pin (<100ns pulse)
• –10V to +20V abs max input pins tolerance,
independent of supply voltage range (TTL
compatible)
• Switching parameters:
– 20ns typical propagation delay times
– 7.2ns rise and 5.5ns fall time with 1000pF load
– 4ns typical delay matching
• Integrated bootstrap diode
• Input interlock
• Enable/disable functionality with low current
consumption (3μA typical) when disabled (DRC
package only)
• Functional Safety-Capable
– Documentation available to aid functional safety
system design

2 Applications
• Automotive DC/DC converters and OBC
• 2-wheeler and 3-wheeler traction drive and battery
pack
• Electric power steering (EPS)
• Wireless charging
• Smart glass module

3 Description
The UCC27301A-Q1 is a robust gate driver designed
to drive two N-channel MOSFETs in a half-bridge
or synchronous buck configuration with an absolute
maximum bootstrap voltage of 120V. Its 3.7A peak
source and 4.5A peak sink current capability allows
the UCC27301A-Q1 to drive large power MOSFETs
with minimized switching losses during the transition
through the Miller Plateau. The switching node
(HS pin) can handle negative transient voltage,
which allows the high-side channel to be protected
from inherent negative voltages caused by parasitic
inductance and stray capacitance.
The inputs are independent of supply voltage and are
able to withstand -10V and +20V absolute maximum
ratings. The low-side and high-side gate drivers are
matched to 4ns between the turn on and turn off of
each other and are controlled throught the LI and HI
input pins respectively. However, the input interlock
logic will turn both driver outputs low whenever both LI
and HI inputs are high at the same time. An on-chip
120V rated bootstrap diode eliminates the need to
add discrete bootstrap diodes. Undervoltage lockout
(UVLO) is provided for both the high-side and the
low-side drivers which provides symmetric turn on and
turn off behavior and forces the outputs low if the
drive voltage is below the specified threshold.