Global Sources
EE Times-Asia
Stay in touch with EE Times Asia

( File format: PDF, 930 KB )
Dual 4-A High Speed Low-Side MOSFET Drivers With Enable (Rev. B)
Texas Instruments

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.
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 4.7C/W jc Rated From ?40C to 105C APPLICATIONS Switch Mode Power Supplies DC/DC Converters Motor Controllers Line Drivers Class D Switching Amplifiers PowerPAD is a trademark of Texas Instruments Incorporated.

Related Datasheets
Part Number Description Category
? ?TPS2817 Single-Channel High-Speed Mosfet Drivers (Rev. C) ICs, Interface
? ?UCC28089 Primary-Side Push-Pull Oscillator with Dead-Time Control (Rev. A) ICs, Interface
? ?UCC37323 Dual 4 A Peak High Speed Low-Side Power MOSFET Drivers (Rev. D) ICs, Interface
? ?UCC37324 Dual 4 A Peak High Speed Low-Side Power MOSFET Drivers (Rev. D) ICs, Interface
? ?UCC37325 Dual 4 A Peak High Speed Low-Side Power MOSFET Drivers (Rev. D) ICs, Interface

As the hyperlinked contents/websites are those of third parties, we cannot vouch for their accuracy or legitimacy.
Interviews & Viewpoints


Learn how senior executives are seeing the industry from interviews and contributed opinions.

Bloggers Say

Bloggers Say

See what engineers like you are posting on our pages.

Back to Top