Datasheet Texas Instruments UCC38502NG4 — 数据表

制造商Texas Instruments
系列UCC38502
零件号UCC38502NG4
Datasheet Texas Instruments UCC38502NG4

BiCMOS PFC / PWM组合控制器20-PDIP 0至70

数据表

BiCMOS PFC/PWM Combination Controller datasheet
PDF, 1.1 Mb, 修订版: C, 档案已发布: Nov 8, 2001
从文件中提取

价格

状态

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes

打包

Pin20
Package TypeN
Industry STD TermPDIP
JEDEC CodeR-PDIP-T
Package QTY20
CarrierTUBE
Device MarkingUCC38502N
Width (mm)6.35
Length (mm)24.33
Thickness (mm)4.57
Pitch (mm)2.54
Max Height (mm)5.08
Mechanical Data下载

参数化

Control MethodCCM
Device TypePFC+PWM
Operating Supply Current4 mA
Operating Supply(Max)18 V
Operating Temperature Range0 to 70 C
Package GroupPDIP
Package Size: mm2:W x LSee datasheet (PDIP) PKG
Peak Output Sink Current Gate Drive1.2 A
Peak Output Source Current Gate Drive-1.2 A
Practical Operating Frequency(Max)0.2 MHz
RatingCatalog
Special Features< 150W Applications,Average Current Mode,Enable,OVP
Startup Current0.15 mA
UVLO Thresholds On/Off16/10 V

生态计划

RoHSCompliant

设计套件和评估模块

  • Evaluation Modules & Boards: UCC38500EVM
    UCC38500EVM Evaluation Module
    Lifecycle Status: Active (Recommended for new designs)

应用须知

  • A New Synchronization Circuit for Power Converters (Rev. A)
    PDF, 209 Kb, 修订版: A, 档案已发布: Apr 21, 2010
    The synchronization of multiple PWM and PFC controllers is desirable for many reasons. The most common reason is that it keeps all the noise at one particular frequency and makes it easier to filter. The circuit described changes the slope of the ramp to lock the converter’s switching frequency to an applied signal by a phase locked loop turning it into a voltage controlled oscillator. Furthermore
  • Startup Current transient of the Leading Edge Triggered PFC Controllers
    PDF, 43 Kb, 档案已发布: Jun 30, 2004
  • Avoiding Audible Noise at Light Loads When Using Leading Edge Triggered PFC Con (Rev. C)
    PDF, 57 Kb, 修订版: C, 档案已发布: Apr 13, 2011
    This application note applies to the TI average current mode, leading edge modulation PFC controllers. See Applicable Device Table for part numbers.
  • DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)
    PDF, 80 Kb, 修订版: A, 档案已发布: Nov 6, 2001
  • Accurate PWM Duty Cycle Clamp
    PDF, 58 Kb, 档案已发布: Jan 25, 2002
    Power supply applications using current sense transformers require a duty cycle clamp on the pulse width modulator (PWM) to ensure transformer reset. Not all PWMs come with a duty cycle clamp presenting a problem for the power supply designer. This application note shows how to implement a duty cycle clamp by using a simple delay circuit.

模型线

系列: UCC38502 (5)

制造商分类

  • Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction