2721驱动芯片全称UCC27210(免费).pdf

UCC27210 UCC27211 SLUSAT7B –NOVEMBER 2011–REVISED FEBRUARY 2012 120-V Boot, 4-A Peak, High Frequency High-Side/Low-Side Driver Check for Samples: UCC27210, UCC27211 1FEATURES APPLICATIONS 2? Drives Two N-Channel MOSFETs in ? Power Supplies for Telecom, Datacom, and High-Side/Low-Side Configuration with Merchant Independent Inputs ? Half-Bridge and Full-Bridge Converters ? Maximum Boot Voltage 120-V DC ? Push-Pull Converters ? 4-A Sink, 4-A Source Output Currents ? High Voltage Synchronous-Buck Converters ? 0.9-Ω Pull-Up/Pull-Down Resistance ? Two-Switch Forward Converters ? Input Pins can Tolerate -10 V to 20 V and are ? Active-Clamp Forward Converters Independent of Supply Voltage Range ? Class-D Audio Amplifiers ? TTL or Pseudo-CMOS Compatible Input Versions DESCRIPTION ? 8-V to 17-V VDD Operating Range, (20 V ABS The UCC27210 and UCC27211 Drivers are based on MAX) the popular UCC27200 and UCC27201 MOSFET drivers, but offer several significant performance? 7.2-ns Rise and 5.5-ns Fall Time with 1000-pF improvements. Peak output pull-up and pull-down Load current has been increased to 4-A source/4-A sink, ? Fast Propagation Delay Times (18 ns typical) and pull-up/pull-down resistance have been reduced ? 2-ns Delay Matching to 0.9 Ω, thereby allowing for driving large power MOSFETs with minimized switching losses during the? Symmetrical Under Voltage Lockout for transition through the MOSFET’s Miller Plateau. The High-Side and Low-Side Driver input structure is now able to directly handle -10 ? All Industry Standard Packages Available VDC, which increases robustness and also allows (SOIC-8, PowerPAD? SOIC-8, 4-mm x 4-mm direct interface to gate-drive transformers without SON-8 and 4-mm x 4-mm SON-10) using rectification diodes. The inputs are also independent of supply voltage and have a 20-V? Specified from -40 to 140 °C maximum rating. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas I