UCC27201ADR

The UCC2720xA series of high-frequency N-channel MOSFET drivers consists of a 120V bootstrap diode and high-side/low-side drivers. The high-side/low-side drivers are equipped with independent inputs to maximize control flexibility. This enables N-channel MOSFET control in half-bridge converters, full-bridge converters, double-switch forward converters, and active clamp forward converters. The low-side and high-side gate drivers are independently controlled, and a 1ns delay matching is achieved between their turn-on and turn-off. The UCC2720xA features an enhanced ESD input structure, and its HS pin can withstand a maximum voltage of -18V, which improves its performance in noisy power supply environments. Since a bootstrap diode is integrated on the chip, there is no need for an external discrete diode. Undervoltage lockout functions are provided for the high-side and low-side drivers. If the drive voltage is lower than the specified threshold, the output is forced low. The UCC27200A is available in two versions. The UCC27200A has a high immunity CMOS input threshold, while the UCC27201A has a threshold compatible with transistor-transistor logic (TTL). Both devices are available in five packages: 8-pin SOIC (D), PowerPad SOIC-8 (DDA), SON-8 (DRM), 9-pin SON-9 (DRC), and 10-pin SON-10 (DPR).

Applications

• Power supplies for telecom, datacom, and commercial applications
• Half-bridge and full-bridge converters
• Isolated bus architectures
• 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
• HS pin negative voltage handling capability: -18V
• Maximum bootstrap voltage: 120V
• Maximum VDD voltage: 20V
• On-chip bootstrap diode: 0.65V VF, 0.6Ω RD
• Operating frequency above 1MHz
• 20ns propagation delay
• 3A sink, 3A source output current
• 8ns rise / 7ns fall time (with 1000pF load)
• 1ns delay matching
• UVLO for high-side and low-side drivers
• Available in 8-pin SOIC (D), PowerPAD SOIC-8 (DDA), SON-8 (DRM), SON-9 (DRC), and SON-10 (DPR) packages
• Rated temperature range: -40°C to 140°C