Datasheet Texas Instruments UC3846QTR — 数据表

制造商Texas Instruments
系列UC3846
零件号UC3846QTR
Datasheet Texas Instruments UC3846QTR

电流模式PWM控制器20-PLCC 0至70

数据表

UCx846/7 Current Mode PWM Controller datasheet
PDF, 1.6 Mb, 修订版: C, 档案已发布: Jan 4, 2016
从文件中提取

价格

状态

Lifecycle StatusNRND (Not recommended for new designs)
Manufacture's Sample AvailabilityNo

打包

Pin20
Package TypeFN
Industry STD TermPLCC
JEDEC CodeS-PQCC-J
Package QTY1000
CarrierLARGE T&R
Device MarkingUC3846Q
Width (mm)8.96
Length (mm)8.96
Thickness (mm)4.06
Pitch (mm)1.27
Max Height (mm)4.57
Mechanical Data下载

参数化

Control MethodCurrent
Duty Cycle(Max)50 %
Frequency(Max)500 kHz
Gate Drive(Typ)0.5 A
Operating Temperature Range0 to 70 C
Package GroupPDIP,SOIC
RatingCatalog
Special FeaturesError Amplifier,Multi-topology,Soft Start,Synchronization Pin
TopologyBoost,Flyback,Forward,Half-Bridge,Push-Pull
UVLO Thresholds On/Off7.7/6.95 V
Vin(Max)40 V
Vin(Min)7 V

生态计划

RoHSCompliant

应用须知

  • Modeling Analysis and Compensation of the Current-Mode Converter
    PDF, 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 Control
    PDF, 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 ICs
    PDF, 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

模型线

制造商分类

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