Datasheet Texas Instruments UCC28251RGPR — 数据表

制造商Texas Instruments
系列UCC28251
零件号UCC28251RGPR
Datasheet Texas Instruments 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 StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes

打包

Pin20
Package TypeRGP
Industry STD TermVQFN
JEDEC CodeS-PQFP-N
Package QTY3000
CarrierLARGE T&R
Device Marking28251
Width (mm)4
Length (mm)4
Thickness (mm).93
Pitch (mm).5
Max Height (mm)1
Mechanical Data下载

参数化

Control MethodCurrent,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 GroupQFN
RatingCatalog
Special FeaturesLeading Edge Blanking,Multi-topology,Programmable Slope Compensation,Soft Start,Synchronization Pin
TopologyForward,Full-Bridge,Half-Bridge,Push-Pull
UVLO Thresholds On/Off4.3/4.1 V
Vin(Max)20 V
Vin(Min)4.3 V

生态计划

RoHSCompliant

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/DC
    PDF, 293 Kb, 档案已发布: Jul 24, 2015
  • Analog Applications Journal 3Q 2015
    PDF, 7.1 Mb, 档案已发布: Jul 24, 2015

模型线

系列: UCC28251 (4)

制造商分类

  • Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller