Datasheet Texas Instruments UCC27222PWPR — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | UCC27222 |
| Numero de parte | UCC27222PWPR |
Controlador Buck Síncrono Predictivo de Alta Eficiencia 14-HTSSOP -40 a 105
Hojas de datos
High-Efficiency Predictive Synchronous Buck Driver datasheet
PDF, 1.7 Mb, Revisión: B, Archivo publicado: jul 16, 2003
Extracto del documento
Precios
Estado
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | No |
Embalaje
| Pin | 14 |
| Package Type | PWP |
| Industry STD Term | HTSSOP |
| JEDEC Code | R-PDSO-G |
| Package QTY | 2000 |
| Carrier | LARGE T&R |
| Device Marking | 27222 |
| Width (mm) | 4.4 |
| Length (mm) | 5 |
| Thickness (mm) | 1 |
| Pitch (mm) | .65 |
| Max Height (mm) | 1.2 |
| Mechanical Data | Descargar |
Paramétricos
| Bus Voltage | 30 V |
| Channel Input Logic | TTL |
| Fall Time | 17 ns |
| Input Threshold | TTL |
| Input VCC(Max) | 20 V |
| Input VCC(Min) | 5 V |
| Negative Voltage Handling at HS Pin | -0.3 V |
| Number of Channels | 2 |
| Operating Temperature Range | -40 to 105 C |
| Package Group | HTSSOP |
| Peak Output Current | 3 A |
| Power Switch | MOSFET |
| Prop Delay | 60 ns |
| Rating | Catalog |
| Rise Time | 17 ns |
| Special Features | Dead Time Control,Soft Switching,Synchronous Rectification |
Plan ecológico
| RoHS | Obediente |
Notas de aplicación
- Increasing UCC27221/2 Gate Drive VoltagePDF, 85 Kb, Archivo publicado: jun 20, 2003
The UCC2722x contains an internal 6.5-V regulator, from which the gate drive voltages for the high and low-side MOSFETs of a synchronous buck power stage are derived. In some instances it may be desirable to drive the MOSFET gates with a voltage other than 6.5 V. The output driver stage of the UCC2722x has an absolute maximum voltage rating of 10 V. However it is still possible to bypass the inter - Low Voltage Feedback in PWM ApplicationsPDF, 56 Kb, Archivo publicado: feb 27, 2003
Normally the output voltage of a switching power supply is higher than the error amplifier reference, and so a simple resistive divider between the output voltage and ground at the non-inverting input of the PWM error amplifier is all that is required to set the regulation voltage. However, when the output voltage is less than the error amplifier reference voltage, the feedback voltage must be div - Predictive Gate Drive (tm) FAQPDF, 152 Kb, Archivo publicado: feb 3, 2003
The proprietary Predictive Gate Driveв„ўtechnology from Texas Instruments maximizes efficiencies of today's high frequency, low output voltage, synchronous buck converters. To gain a better understanding of this innovative new control technique, this list of frequently asked questions (FAQs) addresses the Predictive Gate Driveв„ў technique. - Predictive Gate Drive Boosts Converter EfficiencyPDF, 376 Kb, Archivo publicado: dic 18, 2002
Predictive Gate Driveв„ў is a novel digital control-driven technique that optimizes MOSFET turn-on and turn-off delays in synchronous rectifiers. It uses a closed loop feedback system to detect body-diode conduction, and continuously adjusts dead-time delays to minimize the conduction time interval. Depending upon operating frequency and output voltage, the Predictive Gate Driveв„ў control - UCC27221/2 Predictive Gate Drive FAQPDF, 211 Kb, Archivo publicado: dic 18, 2002
The UCC27221/2 High-Efficiency Predictive Synchronous Buck Driver from Texas Instruments, employs the proprietary Predictive Gate Driveв„ў technology to maximize efficiencies of today's high frequency, low output voltage, synchronous buck converters. To gain a better understanding of this innovative new control technique, a list of frequently asked questions (FAQs) has been developed to addres
Linea modelo
Serie: UCC27222 (3)
- UCC27222PWP UCC27222PWPG4 UCC27222PWPR
Clasificación del fabricante
- Semiconductors > Power Management > MOSFET and IGBT Gate Drivers > Half-bridge Driver