UCC27424 Status: ACTIVE

Product Information

Features

• Industry-Standard Pin-Out
• Enable Functions for Each Driver
• High Current Drive Capability of ±4 A
• Unique BiPolar and CMOS True Drive Output Stage Provides High Current at MOSFET Miller Thresholds
• TTL/CMOS Compatible Inputs Independent of Supply Voltage
• 20-ns Typical Rise and 15-ns Typical Fall Times with 1.8-nF Load
• Typical Propagation Delay Times of 25 ns with Input Falling and 35 ns with Input Rising
• 4-V to 15-V Supply Voltage
• Dual Outputs Can Be Paralleled for Higher Drive Current
• Available in Thermally Enhanced MSOP PowerPAD™ Package with 4.7°C/W jc
• Rated From –40°C to 105°C
• APPLICATIONS
  • Switch Mode Power Supplies
  • DC/DC Converters
  • Motor Controllers
  • Line Drivers
  • Class D Switching Amplifiers

PowerPAD is a trademark of Texas Instruments Incorporated.

Description

The UCC27423/4/5 family of high-speed dual MOSFET drivers can deliver large peak currents into capacitive loads. Three standard logic options are offered — dual-inverting, dual-noninverting and one-inverting and one-noninverting driver. The thermally enhanced 8-pin PowerPAD™ MSOP package (DGN) drastically lowers the thermal resistance to improve long-term reliability. It is also offered in the standard SOIC-8 (D) or PDIP-8 (P) packages.

Using a design that inherently minimizes shoot-through current, these drivers deliver 4-A of current where it is needed most at the Miller plateau region during the MOSFET switching transition. A unique BiPolar and MOSFET hybrid output stage in parallel also allows efficient current sourcing and sinking at low supply voltages.

The UCC27423/4/5 provides enable (ENBL) functions to have better control of the operation of the driver applications. ENBA and EBBB are implemented on pins 1 and 8 which were previously left unused in the industry standard pin-out. They are internally pulled up to Vdd for active high logic and can be left open for standard operation.