Datasheet Texas Instruments UC1846L883B — 数据表
| 制造商 | Texas Instruments |
| 系列 | UC1846 |
| 零件号 | UC1846L883B |
电流模式PWM控制器20-LCCC -55至125
数据表
价格
状态
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No |
打包
| Pin | 20 | 20 | 20 | 20 |
| Package Type | FK | FK | FK | FK |
| Industry STD Term | LCCC | LCCC | LCCC | LCCC |
| JEDEC Code | S-CQCC-N | S-CQCC-N | S-CQCC-N | S-CQCC-N |
| Package QTY | 1 | 1 | 1 | 1 |
| Carrier | TUBE | TUBE | TUBE | TUBE |
| Device Marking | UC1846L/ | 86806012A | 883B | 5962- |
| Width (mm) | 8.89 | 8.89 | 8.89 | 8.89 |
| Length (mm) | 8.89 | 8.89 | 8.89 | 8.89 |
| Thickness (mm) | 1.83 | 1.83 | 1.83 | 1.83 |
| Pitch (mm) | 1.27 | 1.27 | 1.27 | 1.27 |
| Max Height (mm) | 2.03 | 2.03 | 2.03 | 2.03 |
| Mechanical Data | 下载 | 下载 | 下载 | 下载 |
参数化
| Control Method | Current |
| Duty Cycle(Max) | 50 % |
| Frequency(Max) | 500 kHz |
| Operating Temperature Range | -55 to 125 C |
| Package Group | LCCC |
| Package Size: mm2:W x L | 20LCCC: 79 mm2: 8.89 x 8.89(LCCC) PKG |
| Rating | Military |
| Special Features | Error Amplifier,Soft Start,Synchronization Pin,Multi-topology |
| 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 V |
生态计划
| RoHS | See ti.com |
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: UC1846 (8)
制造商分类
- Semiconductors > Space & High Reliability > Power Management Products > Offline and Isolated DC/DC Controller and Converter