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DatenblätterDC/DC-Schaltregler und -ReglerTexas Instruments
UCC38500DW

Datasheet Texas Instruments UCC38500DW — Datenblatt

HerstellerTexas Instruments
SerieUCC38500
ArtikelnummerUCC38500DW
Datasheet Texas Instruments UCC38500DW

BiCMOS PFC / PWM-Kombinationsregler 20-SOIC 0 bis 70

Datenblätter

Herunterladen
BiCMOS PFC/PWM Combination Controller datasheet
PDF, 1.1 Mb, Revision: C, Datei veröffentlicht: Nov 8, 2001
Auszug aus dem Dokument

Preise

Status

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

Verpackung

Pin20
Package TypeDW
Industry STD TermSOIC
JEDEC CodeR-PDSO-G
Package QTY25
CarrierTUBE
Device MarkingUCC38500DW
Width (mm)7.5
Length (mm)12.8
Thickness (mm)2.35
Pitch (mm)1.27
Max Height (mm)2.65
Mechanical DataHerunterladen

Parameter

Control MethodCCM
Device TypePFC+PWM
Operating Supply Current4 mA
Operating Supply(Max)18 V
Operating Temperature Range0 to 70 C
Package GroupSOIC
Package Size: mm2:W x L20SOIC: 132 mm2: 10.3 x 12.8(SOIC) 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

Öko-Plan

RoHSCompliant

Design Kits und Evaluierungsmodule

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

Anwendungshinweise

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    A New Synchronization Circuit for Power Converters (Rev. A)
    PDF, 209 Kb, Revision: A, Datei veröffentlicht: 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
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    Startup Current transient of the Leading Edge Triggered PFC Controllers
    PDF, 43 Kb, Datei veröffentlicht: Jun 30, 2004
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    Avoiding Audible Noise at Light Loads When Using Leading Edge Triggered PFC Con (Rev. C)
    PDF, 57 Kb, Revision: C, Datei veröffentlicht: 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.
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    DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)
    PDF, 80 Kb, Revision: A, Datei veröffentlicht: Nov 6, 2001
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    Accurate PWM Duty Cycle Clamp
    PDF, 58 Kb, Datei veröffentlicht: 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.

Modellreihe

Serie: UCC38500 (3)

Herstellerklassifikation

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