Datasheet Texas Instruments UCC27222PWPR — 数据表
| 制造商 | Texas Instruments |
| 系列 | UCC27222 |
| 零件号 | UCC27222PWPR |
高效预测同步降压驱动器14-HTSSOP -40至105
数据表
High-Efficiency Predictive Synchronous Buck Driver datasheet
PDF, 1.7 Mb, 修订版: B, 档案已发布: Jul 16, 2003
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价格
状态
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No |
打包
| 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 | 下载 |
参数化
| 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 |
生态计划
| RoHS | Compliant |
应用须知
- Increasing UCC27221/2 Gate Drive VoltagePDF, 85 Kb, 档案已发布: 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, 档案已发布: 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, 档案已发布: 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, 档案已发布: 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, 档案已发布: 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
模型线
系列: UCC27222 (3)
- UCC27222PWP UCC27222PWPG4 UCC27222PWPR
制造商分类
- Semiconductors > Power Management > MOSFET and IGBT Gate Drivers > Half-bridge Driver