Datasheet Texas Instruments UC2846DWG4 — 数据表
制造商 | Texas Instruments |
系列 | UC2846 |
零件号 | UC2846DWG4 |
电流模式PWM控制器16-SOIC -40至85
数据表
价格
状态
Lifecycle Status | Active (Recommended for new designs) |
Manufacture's Sample Availability | Yes |
打包
Pin | 16 |
Package Type | DW |
Industry STD Term | SOIC |
JEDEC Code | R-PDSO-G |
Package QTY | 40 |
Carrier | TUBE |
Device Marking | UC2846DW |
Width (mm) | 7.5 |
Length (mm) | 10.3 |
Thickness (mm) | 2.35 |
Pitch (mm) | 1.27 |
Max Height (mm) | 2.65 |
Mechanical Data | 下载 |
参数化
Control Method | Current |
Duty Cycle(Max) | 50 % |
Frequency(Max) | 500 kHz |
Gate Drive(Typ) | 0.5 A |
Operating Temperature Range | -40 to 85 C |
Package Group | SOIC |
Rating | Catalog |
Special Features | Error Amplifier,Multi-topology,Soft Start,Synchronization Pin |
Topology | Boost,Flyback,Forward,Full-Bridge,Half-Bridge,Push-Pull |
UVLO Thresholds On/Off | 7.7/6.95 V |
Vin(Max) | 40 V |
Vin(Min) | 7.7 V |
生态计划
RoHS | Compliant |
应用须知
- Modeling Analysis and Compensation of the Current-Mode ConverterPDF, 189 Kb, 档案已发布: Sep 5, 1999
As current-mode conversion increases in popularity several peculiarities associated with fixed-frequency peak-current detecting schemes have surfaced. These include instability above 50% duty cycle a tendency towards subharmonic oscillation non-ideal loop response and an increased sensitivity to noise. This application note attempts to show that the performance of any current-mode converter c - U-93 A New Integrated Circuit for Current Mode ControlPDF, 411 Kb, 档案已发布: Sep 5, 1999
Advantages of current-mode control over conventional PWM approaches to switching power converters include automatic feed-forward automatic symmetry correction inherent current-limiting simple loop-compensation enhanced load-response and the capability for parallel operation. This application note introduces the first control integrated circuit specifically designed for this topology defines - DN-45 UC3846 UC3856 and UCC3806 Push Pull PWM Current Mode Control ICsPDF, 27 Kb, 档案已发布: Sep 5, 1999
The UC3856 is a pin-for-pin-compatible high-performance bipolar version of the industry standard UC3846. It can replace the UC3846 with few circuit modifications and it features increased speed higher gate-drive current and reduced propagation delays. The UCC3806 is a BiCMOS pin-for-pin compatible ultra-low-power version ideal for battery low-power and high-speed applications. The UCC3806 - DN-62 Switching Power Supply Topology Voltage Mode vs. Current ModePDF, 66 Kb, 档案已发布: Sep 5, 1999
This design note explains the differences between voltage-mode and current-mode switching power supply topologies. It includes a circuit diagram for each mode and suggests criteria for choosing which mode to use.
模型线
系列: UC2846 (9)
制造商分类
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller