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TL594 Status: ACTIVE

Pulse-Width-Modulation (PWM) Control Circuit


      
         
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 TL594
TopologyBoost, Flyback, Forward  
Control MethodVoltage Mode  
Duty Cycle(Max)(%)45  
PWM Outputs(#)2  
Frequency(Max)(kHz)300  
UVLO Thresholds On/Off(V)6.1/6  
Pin/Package16PDIP, 16SO, 16SOIC, 16TSSOP  
Regulated Outputs(#)2  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

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  • BQ24103: Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1- or 2-cell
  • TPS54331: 3A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-mode ™

More Related Products

Product Information

Features

  • Complete PWM Power-Control Circuitry
  • Uncommitted Outputs for 200-mA Sink orSource Current
  • Output Control Selects Single-Ended or Push-Pull Operation
  • Internal Circuitry Prohibits Double Pulse at Either Output
  • Variable Dead Time Provides Control Over Total Range
  • Internal Regulator Provides a Stable 5-V Reference Supply Trimmed to 1%
  • Circuit Architecture Allows Easy Synchronization
  • Undervoltage Lockout for Low-VCC Conditions

DESCRIPTION/ORDERING INFORMATION

The TL594 incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the systems engineer the flexibility to tailor the power-supply control circuitry to a specific application.

The TL594 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V regulator with a precision of 1%, an undervoltage lockout control circuit, and output control circuitry.

The error amplifiers have a common-mode voltage range of -0.3 V to VCC - 2 V. The DTC comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can be used to drive the common circuitry in synchronous multiple-rail power supplies.

The uncommitted output transistors provide either common-emitter or emitter-follower output capability. Each device provides for push-pull or single-ended output operation, with selection by means of the output-control function. The architecture of these devices prohibits the possibility of either output being pulsed twice during push-pull operation. The undervoltage lockout control circuit locks the outputs off until the internal circuitry is operational.

The TL594C is characterized for operation from 0°C to 70°C. The TL594I is characterized for operation from -40°C to 85°C.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
TL594CDACTIVE0 to 700.41 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594CDE4ACTIVE0 to 700.41 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594CDG4ACTIVE0 to 700.41 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594CDRACTIVE0 to 700.43 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594CDRE4ACTIVE0 to 700.43 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594CDRG4ACTIVE0 to 700.43 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594CNACTIVE0 to 700.38 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594CNE4ACTIVE0 to 700.38 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594CNSRACTIVE0 to 700.38 | 1kuSO (NS) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL594CNSRE4ACTIVE0 to 700.38 | 1kuSO (NS) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL594CNSRG4ACTIVE0 to 700.38 | 1kuSO (NS) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL594CPWACTIVE0 to 700.46 | 1kuTSSOP (PW) | 16 View 90 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL594CPWE4ACTIVE0 to 700.46 | 1kuTSSOP (PW) | 16 View 90 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL594CPWG4ACTIVE0 to 700.46 | 1kuTSSOP (PW) | 16 View 90 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL594CPWRACTIVE0 to 700.38 | 1kuTSSOP (PW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594CPWRE4ACTIVE0 to 700.38 | 1kuTSSOP (PW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594CPWRG4ACTIVE0 to 700.38 | 1kuTSSOP (PW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594IDACTIVE-40 to 850.41 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594IDE4ACTIVE-40 to 850.41 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594IDG4ACTIVE-40 to 850.41 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594IDRACTIVE-40 to 850.65 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL594IDRE4ACTIVE-40 to 850.65 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL594IDRG4ACTIVE-40 to 850.65 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL594INACTIVE-40 to 850.65 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594INE4ACTIVE-40 to 850.65 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594INSRACTIVE-40 to 850.65 | 1kuSO (NS) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594INSRG4ACTIVE-40 to 850.65 | 1kuSO (NS) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594IPWRACTIVE-40 to 850.65 | 1kuTSSOP (PW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594IPWRE4ACTIVE-40 to 850.65 | 1kuTSSOP (PW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL594IPWRG4ACTIVE-40 to 850.65 | 1kuTSSOP (PW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:14 AM GMT, 09 Feb 2010
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTL594CD
AmericasRochester Electronics 850
AsiaFarnell Asia >1k
EuropeFarnell >1k
WorldwideDigiKey  Available
Mouser Electronics 64
TI Lead Time*: 20 WeeksTL594CDE4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTL594CDG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTL594CDR
AsiaWPI >1k
WorldwideDigiKey >1k
Mouser Electronics 142
TI Lead Time*: 20 WeeksTL594CDRE4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTL594CDRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTL594CN
AmericasRochester Electronics >1k
AsiaFarnell Asia 14
WPI 25
EuropeFarnell 1
TI Lead Time*: 20 WeeksTL594CNE4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL594CNSR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL594CNSRE4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL594CNSRG4
None Reported
View Distributors
TI Lead Time*: 18 WeeksTL594CPW
AmericasRochester Electronics 630
TI Lead Time*: 18 WeeksTL594CPWE4
None Reported
View Distributors
TI Lead Time*: 18 WeeksTL594CPWG4
None Reported
View Distributors
TI Lead Time*: 22 WeeksTL594CPWR
AmericasRochester Electronics >1k
TI Lead Time*: 22 WeeksTL594CPWRE4
None Reported
View Distributors
TI Lead Time*: 22 WeeksTL594CPWRG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL594ID
AmericasRochester Electronics 78
EuropeArrow Northern Europe >1k
Avnet-SILICA 40
TI Lead Time*: 20 WeeksTL594IDE4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL594IDG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL594IDR
AmericasRochester Electronics >1k
TI Lead Time*: 20 WeeksTL594IDRE4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL594IDRG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL594IN
AmericasRochester Electronics 240
TI Lead Time*: 20 WeeksTL594INE4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL594INSR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL594INSRG4
None Reported
View Distributors
TI Lead Time*: 22 WeeksTL594IPWR
None Reported
View Distributors
TI Lead Time*: 22 WeeksTL594IPWRE4
None Reported
View Distributors
TI Lead Time*: 22 WeeksTL594IPWRG4
None Reported
View Distributors
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TL594CD RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CDE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CDG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CDR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CDRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CDRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CN RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
TL594CNE4 RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
TL594CNSR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CNSRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CNSRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CPW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CPWE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CPWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CPWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CPWRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594CPWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594ID RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594IDE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594IDG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594IDR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594IDRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594IDRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594IN RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
TL594INE4 RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
TL594INSR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594INSRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594IPWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594IPWRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL594IPWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TL594 Help

Datasheet

Application Notes

View Application Notes for PWM Power Supply Controllers

Selection Guides

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