Datasheet Texas Instruments UCC27222PWPR — Datenblatt
| Hersteller | Texas Instruments |
| Serie | UCC27222 |
| Artikelnummer | UCC27222PWPR |
Hocheffizienter prädiktiver synchroner Buck-Treiber 14-HTSSOP -40 bis 105
Datenblätter
High-Efficiency Predictive Synchronous Buck Driver datasheet
PDF, 1.7 Mb, Revision: B, Datei veröffentlicht: Jul 16, 2003
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Preise
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No |
Verpackung
| 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 | Herunterladen |
Parameter
| 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 |
Öko-Plan
| RoHS | Compliant |
Anwendungshinweise
- Increasing UCC27221/2 Gate Drive VoltagePDF, 85 Kb, Datei veröffentlicht: 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, Datei veröffentlicht: 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, Datei veröffentlicht: 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, Datei veröffentlicht: Dec 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, Datei veröffentlicht: Dec 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
Modellreihe
Serie: UCC27222 (3)
- UCC27222PWP UCC27222PWPG4 UCC27222PWPR
Herstellerklassifikation
- Semiconductors > Power Management > MOSFET and IGBT Gate Drivers > Half-bridge Driver