Datasheet Texas Instruments UCC28503DWG4 — 数据表
| 制造商 | Texas Instruments |
| 系列 | UCC28503 |
| 零件号 | UCC28503DWG4 |
BiCMOS PFC / PWM组合控制器20-SOIC -40至85
数据表
价格
状态
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No |
打包
| Pin | 20 |
| Package Type | DW |
| Industry STD Term | SOIC |
| JEDEC Code | R-PDSO-G |
| Package QTY | 25 |
| Carrier | TUBE |
| Device Marking | UCC28503DW |
| Width (mm) | 7.5 |
| Length (mm) | 12.8 |
| Thickness (mm) | 2.35 |
| Pitch (mm) | 1.27 |
| Max Height (mm) | 2.65 |
| Mechanical Data | 下载 |
参数化
| Control Method | CCM |
| Device Type | PFC+PWM |
| Operating Supply Current | 4 mA |
| Operating Supply(Max) | 18 V |
| Operating Temperature Range | -40 to 85 C |
| Package Group | SOIC |
| Package Size: mm2:W x L | 20SOIC: 132 mm2: 10.3 x 12.8(SOIC) PKG |
| Peak Output Sink Current Gate Drive | 1.2 A |
| Peak Output Source Current Gate Drive | -1.2 A |
| Practical Operating Frequency(Max) | 0.2 MHz |
| Rating | Catalog |
| Special Features | Average Current Mode,Enable,OVP |
| Startup Current | 0.15 mA |
| UVLO Thresholds On/Off | 10.5/10 V |
生态计划
| RoHS | Compliant |
应用须知
- A New Synchronization Circuit for Power Converters (Rev. A)PDF, 209 Kb, 修订版: A, 档案已发布: Apr 21, 2010
The synchronization of multiple PWM and PFC controllers is desirable for many reasons. The most common reason is that it keeps all the noise at one particular frequency and makes it easier to filter. The circuit described changes the slope of the ramp to lock the converter’s switching frequency to an applied signal by a phase locked loop turning it into a voltage controlled oscillator. Furthermore - Startup Current transient of the Leading Edge Triggered PFC ControllersPDF, 43 Kb, 档案已发布: Jun 30, 2004
- Avoiding Audible Noise at Light Loads When Using Leading Edge Triggered PFC Con (Rev. C)PDF, 57 Kb, 修订版: C, 档案已发布: Apr 13, 2011
This application note applies to the TI average current mode, leading edge modulation PFC controllers. See Applicable Device Table for part numbers. - DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)PDF, 80 Kb, 修订版: A, 档案已发布: Nov 6, 2001
- Accurate PWM Duty Cycle ClampPDF, 58 Kb, 档案已发布: Jan 25, 2002
Power supply applications using current sense transformers require a duty cycle clamp on the pulse width modulator (PWM) to ensure transformer reset. Not all PWMs come with a duty cycle clamp presenting a problem for the power supply designer. This application note shows how to implement a duty cycle clamp by using a simple delay circuit.
模型线
系列: UCC28503 (2)
- UCC28503DW UCC28503DWG4
制造商分类
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction