Datasheet Texas Instruments TL494 — 数据表

制造商Texas Instruments
系列TL494
Datasheet Texas Instruments TL494

PWM控制电路

数据表

TL494 Pulse-Width-Modulation Control Circuits datasheet
PDF, 1.3 Mb, 修订版: H, 档案已发布: Feb 27, 2017
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价格

状态

TL494CDTL494CDG4TL494CDRTL494CDRE4TL494CDRG3TL494CDRG4TL494CJTL494CNTL494CNE4TL494CNSRTL494CNSRG4TL494CPWTL494CPWG4TL494CPWLETL494CPWRTL494CPWRG4TL494IDTL494IDG4TL494IDRTL494IDRE4TL494IDRG4TL494INTL494INE4TL494MJTL494MJB
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Preview (Device has been announced but is not in production. Samples may or may not be available)Active (Recommended for new designs)Obsolete (Manufacturer has discontinued the production of the device)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Obsolete (Manufacturer has discontinued the production of the device)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Obsolete (Manufacturer has discontinued the production of the device)Obsolete (Manufacturer has discontinued the production of the device)
Manufacture's Sample AvailabilityYesNoNoNoNoNoNoNoNoNoNoNoNoNoYesNoNoNoNoYesNoYesNoNoNo

打包

TL494CDTL494CDG4TL494CDRTL494CDRE4TL494CDRG3TL494CDRG4TL494CJTL494CNTL494CNE4TL494CNSRTL494CNSRG4TL494CPWTL494CPWG4TL494CPWLETL494CPWRTL494CPWRG4TL494IDTL494IDG4TL494IDRTL494IDRE4TL494IDRG4TL494INTL494INE4TL494MJTL494MJB
N12345678910111213141516171819202122232425
Pin16161616161616161616161616161616161616161616161616
Package TypeDDDDDDJNNNSNSPWPWPWPWPWDDDDDNNJJ
Industry STD TermSOICSOICSOICSOICSOICSOICCDIPPDIPPDIPSOPSOPTSSOPTSSOPTSSOPTSSOPTSSOPSOICSOICSOICSOICSOICPDIPPDIPCDIPCDIP
JEDEC CodeR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-GDIP-TR-PDIP-TR-PDIP-TR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDIP-TR-PDIP-TR-GDIP-TR-GDIP-T
Package QTY404025002500250025252000200090902000200040402500250025002525
CarrierTUBETUBELARGE T&RLARGE T&RLARGE T&RTUBETUBELARGE T&RLARGE T&RTUBETUBELARGE T&RLARGE T&RTUBETUBELARGE T&RLARGE T&RLARGE T&RTUBETUBE
Device MarkingTL494CTL494CTL494CTL494CTL494CTL494CTL494CNTL494CNTL494TL494T494T494T494T494TL494ITL494ITL494ITL494ITL494ITL494INTL494IN
Width (mm)3.913.913.913.913.913.916.926.356.355.35.34.44.44.44.44.43.913.913.913.913.916.356.356.926.92
Length (mm)9.99.99.99.99.99.919.5619.319.310.310.3555559.99.99.99.99.919.319.319.5619.56
Thickness (mm)1.581.581.581.581.581.584.573.93.91.951.95111111.581.581.581.581.583.93.94.574.57
Pitch (mm)1.271.271.271.271.271.272.542.542.541.271.27.65.65.65.65.651.271.271.271.271.272.542.542.542.54
Max Height (mm)1.751.751.751.751.751.755.085.085.08221.21.21.21.21.21.751.751.751.751.755.085.085.085.08
Mechanical Data下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载下载

参数化

Parameters / ModelsTL494CD
TL494CD
TL494CDG4
TL494CDG4
TL494CDR
TL494CDR
TL494CDRE4
TL494CDRE4
TL494CDRG3
TL494CDRG3
TL494CDRG4
TL494CDRG4
TL494CJ
TL494CJ
TL494CN
TL494CN
TL494CNE4
TL494CNE4
TL494CNSR
TL494CNSR
TL494CNSRG4
TL494CNSRG4
TL494CPW
TL494CPW
TL494CPWG4
TL494CPWG4
TL494CPWLE
TL494CPWLE
TL494CPWR
TL494CPWR
TL494CPWRG4
TL494CPWRG4
TL494ID
TL494ID
TL494IDG4
TL494IDG4
TL494IDR
TL494IDR
TL494IDRE4
TL494IDRE4
TL494IDRG4
TL494IDRG4
TL494IN
TL494IN
TL494INE4
TL494INE4
TL494MJ
TL494MJ
TL494MJB
TL494MJB
Approx. Price (US$)0.17 | 1ku0.17 | 1ku0.17 | 1ku0.17 | 1ku0.17 | 1ku
Control MethodVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltageVoltage
Duty Cycle(Max), %4545454545454545454545454545454545454545
Duty Cycle(Max)(%)4545454545
Frequency(Max), kHz300300300300300300300300300300300300300300300300300300300300
Frequency(Max)(kHz)300300300300300
Frequency(Min), kHz11111111111111111111
Frequency(Min)(kHz)1
Gate Drive(Typ), A0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.2
Gate Drive(Typ)(A)0.2
Operating Temperature Range, C-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70-40 to 85,0 to 70
Operating Temperature Range(C)-40 to 85
0 to 70
-40 to 85
0 to 70
-40 to 85
0 to 70
-40 to 85
0 to 70
-40 to 85
0 to 70
Package GroupSOICSOICSOICSOICSOICSOICPDIP
SO
SOIC
TSSOP
PDIPPDIPSOSOTSSOPTSSOPTSSOPTSSOPTSSOPSOICSOICSOICSOICSOICPDIPPDIPPDIP
SO
SOIC
TSSOP
PDIP
SO
SOIC
TSSOP
RatingCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalog
Special FeaturesAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency
Error Amplifier
Multi-topology
Adjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency
Error Amplifier
Multi-topology
Adjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency
Error Amplifier
Multi-topology
Adjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency,Error Amplifier,Multi-topologyAdjustable Switching Frequency
Error Amplifier
Multi-topology
Adjustable Switching Frequency
Error Amplifier
Multi-topology
TopologyBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost
Buck
Flyback
Forward
Full-Bridge
Half-Bridge
Push-Pull
Boost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost
Buck
Flyback
Forward
Full-Bridge
Half-Bridge
Push-Pull
Boost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost
Buck
Flyback
Forward
Full-Bridge
Half-Bridge
Push-Pull
Boost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost,Buck,Flyback,Forward,Full-Bridge,Half-Bridge,Push-PullBoost
Buck
Flyback
Forward
Full-Bridge
Half-Bridge
Push-Pull
Boost
Buck
Flyback
Forward
Full-Bridge
Half-Bridge
Push-Pull
UVLO Thresholds On/Off, VN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
UVLO Thresholds On/Off(V)N/A
Vin(Max), V3838383838383838383838383838383838383838
Vin(Max)(V)3840404040
Vin(Min), V-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3
Vin(Min)(V)-0.37777

生态计划

TL494CDTL494CDG4TL494CDRTL494CDRE4TL494CDRG3TL494CDRG4TL494CJTL494CNTL494CNE4TL494CNSRTL494CNSRG4TL494CPWTL494CPWG4TL494CPWLETL494CPWRTL494CPWRG4TL494IDTL494IDG4TL494IDRTL494IDRE4TL494IDRG4TL494INTL494INE4TL494MJTL494MJB
RoHSCompliantCompliantCompliantCompliantNot CompliantCompliantNot CompliantCompliantCompliantCompliantCompliantCompliantCompliantNot CompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantNot CompliantNot Compliant
Pb FreeNoYesNoNoNoNoYesYesYes

应用须知

  • Isolated Multiple Output Flyback Converter Design Using TL494
    PDF, 741 Kb, 档案已发布: Jun 18, 2014
  • Off-Line SMPS Failure Modes PWM Switchers and DC-DC Converters
    PDF, 71 Kb, 档案已发布: Mar 22, 2000
    Today's voltage regulator modules (VRMs) employ off-line SMPS techniques. Traditionally, they are usually discarded when they fail because they are so challenging to debug and so inexpensive to replace. Investigation of these failed modules reveals some common failure modes. Some failures are caused by other systems' passive components that fail after repeated electrical stress. Recognizing these
  • Designing Switching Voltage Regulators With the TL494 (Rev. E)
    PDF, 329 Kb, 修订版: E, 档案已发布: Jul 26, 2005
    Designing Switching Voltage Regulators With the TL494
  • Understanding Buck Power Stages In Switchmode Power Supplies
    PDF, 173 Kb, 档案已发布: Mar 4, 1999
    A switching power supply consists of the power stage and the control circuit. The power stage performs the basic power conversion from the input voltage to the output voltage and includes switches and the output filter. This report addresses the buck power stage only and does not cover control circuits. Detailed steady-state and small-signal analysis of the buck power stage operating in continuous
  • Understanding Boost Power Stages In Switchmode Power Supplies
    PDF, 149 Kb, 档案已发布: Mar 4, 1999
    A switching power supply consists of the power stage and the control circuit. The power stage performs the basic power conversion from the input voltage to the output voltage and includes switches and the output filter. This report addresses the boost power stage only and does not cover control circuits. The report includes detailed steady-stage and small-signal analysis of the boost power stage o
  • Understanding Buck-Boost Power Stages in Switchmode Power Supplies (Rev. A)
    PDF, 363 Kb, 修订版: A, 档案已发布: May 28, 2002

模型线

制造商分类

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