The UCC27211DDA is a 120V Boot High Frequency High-side Low-side Driver that offers several significant performance improvements. Peak output pull-up and pull-down current has been increased to 4A source and 4A sink and pull-up and pull-down resistance have been reduced to 0.9R, thereby allowing for driving large power MOSFETs with minimized switching losses during the transition through the Miller Plateau of the MOSFET. The input structure is now able to directly handle -10VDC, which increases robustness and also allows direct interface to gate-drive transformers without using rectification diodes. The switching node (HS pin) of the UCC27211 can handle -18V maximum which allows the high-side channel to be protected from inherent negative voltages caused parasitic inductance and stray capacitance. The UCC27211 (TTL inputs) has increased hysteresis allowing for interface to analogue or digital PWM controllers with enhanced noise immunity.
Drives two N-channel MOSFETs in high-side and low-side configuration with independent inputs
120VDC Maximum boot voltage
4A sink, 4A source output currents
0.9R Pull-up and pull-down resistance
Input pins can tolerate -10 to 20V and are independent of supply voltage range
7.2ns Rise and 5.5ns fall time with 1000pF load
Fast propagation delay times (18ns typical)
2ns Delay matching
Symmetrical under-voltage lockout for high-side and low-side driver
(EN)
