Predictive Gate Drive™ and PowerPAD™ are trademarks of Texas Instruments Incorporated.
The UCC27223 is a high-speed synchronous buck drivers for today’s high-efficiency, lower-output voltage designs. Using Predictive Gate Drive™ (PGD) control technology, these drivers reduce diode conduction and reverse recovery losses in the synchronous rectifier MOSFET(s).
The UCC27223 includes an enable pin that controls the operation of both outputs. A logic latch is also included to keep both outputs low until the first PWM input pulse comes in. The RDS(on) of the SR pull-down sourcing device is also minimized for higher frequency operations.
This closed loop feedback system detects body-diode conduction, and adjusts deadtime delays to minimize the conduction time interval. This virtually eliminates body-diode conduction while adjusting for temperature, load- dependent delays, and for different MOSFETs. Precise gate timing at the nanosecond level reduces the reverse recovery time of the synchronous rectifier MOSFET body-diode, reducing reverse recovery losses seen in the main (high-side) MOSFET. The lower junction temperature in the low-side MOSFET increases product reliability. Since the power dissipation is minimized, a higher switching frequency can also be used, allowing for smaller component sizes.
The UCC27223 is offered in the thermally enhanced 14-pin PowerPAD™ package with 2°C/W 
jc.
| Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | High-Efficiency predictive synchronous buck driver - UCC27223 datasheet | 10 abr 2003 | |
| Application brief | External Gate Resistor Selection Guide (Rev. A) | 28 feb 2020 | ||
| Application brief | Understanding Peak IOH and IOL Currents (Rev. A) | 28 feb 2020 | ||
| More literature | Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) | 29 oct 2018 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 jun 2018 |
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| HTSSOP (PWP) | 14 | Ultra Librarian |
El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.
Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI.