UCC27201DR

The UCC2720x family of high-frequency N-channel MOSFET drivers include a 120-V bootstrap diode and high-side and low-side drivers with independent inputs for maximum control flexibility. This allows for N-channel MOSFET control in half-bridge, full-bridge, two-switch forward, and active clamp forward converters. The low-side and the high-side gate drivers are independently controlled and matched to 1 ns between the turnon and turnoff of each other. An on-chip bootstrap diode eliminates the external discrete diodes. Undervoltage lockout is provided for both the high-side and the low-side drivers forcing the outputs low if the drive voltage is below the specified threshold. Two versions of the UCC27200 are offered. The UCC27200 has high noise immune CMOS input thresholds while the UCC27201 has TTL compatible thresholds.

Applications

• Power Supplies for Telecom, Datacom, and Merchant Markets
• Half-Bridge Applications and Full-Bridge Converters
• Isolated Bus Architecture
• Two-Switch Forward Converters
• Active-Clamp Forward Converters
• High-Voltage Synchronous-Buck Converters
• Class-D Audio Amplifiers

Key features

• Drives Two N-Channel MOSFETs in High-Side and Low-Side Configuration
• Negative Voltage Handling on HS (–5 V)
• Maximum Boot Voltage of 120 V
• Maximum VDD Voltage of 20 V
• On-Chip 0.65-V VF, 0.6-Ω RD Bootstrap Diode
• Greater than 1 MHz of Operation
• 20-ns Propagation Delay Times
• 3-A Sink and 3-A Source Output Currents
• 8-ns Rise and 7-ns Fall Time With 1000-pF Load
• 1-ns Delay Matching
• Undervoltage Lockout for High-Side and Low-Side Driver
• Specified from -40°C to 140°C