Datasheet Texas Instruments UCC28251RGPR — 数据表
制造商 | Texas Instruments |
系列 | UCC28251 |
零件号 | UCC28251RGPR |
具有预偏置操作的高级PWM控制器20-QFN -40至125
数据表
UCC28251 Advanced PWM Controller With Prebias Operation datasheet
PDF, 1.8 Mb, 修订版: E, 档案已发布: Dec 29, 2014
从文件中提取
价格
状态
Lifecycle Status | Active (Recommended for new designs) |
Manufacture's Sample Availability | Yes |
打包
Pin | 20 |
Package Type | RGP |
Industry STD Term | VQFN |
JEDEC Code | S-PQFP-N |
Package QTY | 3000 |
Carrier | LARGE T&R |
Device Marking | 28251 |
Width (mm) | 4 |
Length (mm) | 4 |
Thickness (mm) | .93 |
Pitch (mm) | .5 |
Max Height (mm) | 1 |
Mechanical Data | 下载 |
参数化
Control Method | Current,Feedforward,Voltage |
Duty Cycle(Max) | 100 % |
Frequency(Max) | 1000 kHz |
Frequency(Min) | 40 kHz |
Gate Drive(Typ) | 0.2 A |
Operating Temperature Range | -40 to 125 C |
Package Group | QFN |
Rating | Catalog |
Special Features | Leading Edge Blanking,Multi-topology,Programmable Slope Compensation,Soft Start,Synchronization Pin |
Topology | Forward,Full-Bridge,Half-Bridge,Push-Pull |
UVLO Thresholds On/Off | 4.3/4.1 V |
Vin(Max) | 20 V |
Vin(Min) | 4.3 V |
生态计划
RoHS | Compliant |
设计套件和评估模块
- Evaluation Modules & Boards: UCC28250EVM-564
Evaluation Module for UCC28250 Adv.PWM Controller w/ Pre-biased Load Op. on Secondary Side Control
Lifecycle Status: Active (Recommended for new designs) - Evaluation Modules & Boards: UCC28250EVM-501
Evaluation Module for UCC28250 Advanced PWM Controller on Primary Side Control
Lifecycle Status: Active (Recommended for new designs)
应用须知
- Differences Between the UCC28251 and UCC28250 and Evaluation of the UCC28251 in (Rev. A)PDF, 36 Kb, 修订版: A, 档案已发布: Feb 15, 2013
The UCC28251 is a functional variant of the UCC28250 PWM Controller. While the same basic functionality of the UCC28250 is largely maintained, the UCC28251 is designed to operate at a lower frequency (minimum of 27 kHz when programmed by RT pin) allowing operation in 400-V input DC-to-DC converters in off-line AC-to-DC power supplies, where frequency-dependent high-voltage switching lossesare an - Fast input-voltage transient response with digitally-controlled isolated DC/DCPDF, 293 Kb, 档案已发布: Jul 24, 2015
- Analog Applications Journal 3Q 2015PDF, 7.1 Mb, 档案已发布: Jul 24, 2015
模型线
系列: UCC28251 (4)
- UCC28251PW UCC28251PWR UCC28251RGPR UCC28251RGPT
制造商分类
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller