UC2637 Status:ACTIVE

Switched Mode Controller for DC Motor Drive

      
         
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Datasheet

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  • Switched Mode Controller for DC Motor Drive (uc2637.pdf, 530 KB)
    05 Sep 1999 Download

 UC1637 UC2637UC3637 
Operating Supply(Min)(V)5  5  5  
Operating Supply(Max)(V)36  36  36  
Operating Supply Current(mA)8.5  8.5  8.5  
Peak Output Current(A)0.4  0.4  0.4  
Pin/Package18CDIP,20LCCC  18CDIP,18PDIP,20PLCC,20SOIC  18PDIP,20PLCC,20SOIC  
RatingMilitary  Military  Catalog  
 SamplesSamplesSamples
 InventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • UC3638: Advanced PWM Motor Controller
  • UC1637: Switched Mode Controller for DC Motor Drive
  • UC3770A: High Performance Stepper Motor Drive Circuit

More Related Products

Product Information

Features

  • Single or Dual Supply Operation
  • ±2.5V to ±20V Input Supply Range
  • ±5% Initial Oscillator Accuracy; ±10% Over Temperature
  • Pulse-by-Pulse Current Limiting
  • Under-Voltage Lockout
  • Shutdown Input with Temperature Compensated 2.5V Threshold
  • Uncommitted PWM Comparators for Design Flexibility
  • Dual 100mA, Source/Sink Output Drivers

Description

The UC1637 is a pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bi-directional drive circuits. When used to replace conventional drivers, this circuit can increase efficiency and reduce component costs for many applications. All necessary circuitry is included to generate an analog error signal and modulate two bi-directional pulse train outputs in proportion to the error signal magnitude and polarity.

This monolithic device contains a sawtooth oscillator, error amplifier, and two PWM comparators with ±100mA output stages as standard features. Protection circuitry includes under-voltage lockout, pulse-by-pulse current limiting, and a shutdown port with a 2.5V temperature compensated threshold.

The UC1637 is characterized for operation over the full military temperature range of -55°C to +125°C, while the UC2637 and UC3637 are characterized for -25°C to +85°C and 0°C to +70°C, respectively.

    

Pricing / Packaging / CAD Design Tools / Samples

Price ($US)PackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price ($US) | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UC2637DWACTIVE-25 to 854.40 | 100uSOIC (DW) | 20 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2637DWG4ACTIVE-25 to 854.40 | 100uSOIC (DW) | 20 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2637DWTRACTIVE-25 to 854.40 | 100uSOIC (DW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2637DWTRG4ACTIVE-25 to 854.40 | 100uSOIC (DW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2637JACTIVE-25 to 856.64 | 100uCDIP (J) | 18  1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC2637NACTIVE-25 to 854.40 | 100uPDIP (N) | 18 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2637NG4ACTIVE-25 to 854.40 | 100uPDIP (N) | 18 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2637QACTIVE-25 to 854.40 | 100uPLCC (FN) | 20 View 46 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2637QG3ACTIVE-25 to 854.40 | 100uPLCC (FN) | 20 View 46 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2637QTRACTIVE-25 to 854.40 | 100uPLCC (FN) | 20 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2637QTRG3ACTIVE-25 to 854.40 | 100uPLCC (FN) | 20 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples

* 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

  TI Inventory Status Reported Distributor Inventory
UC2637DWAs of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 1319 | 17 Sep 4 Weeks AmericasAvnet 143
  DigiKey 842
  Mouser Electronics 11
  Newark 75
  AsiaWPI 50
  EuropeArrow Southern Europe >1k
UC2637DWG4As of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 1319 | 17 Sep 4 Weeks EuropeEBV Elektronik 250
UC2637DWTRAs of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 8000 | 16 Sep 4 Weeks None Reported
View Distributors
   
 >10k | 2 Oct     
UC2637DWTRG4As of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 8000 | 16 Sep 4 Weeks None Reported
View Distributors
   
 >10k | 2 Oct     
UC2637JAs of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 259* >10k | 19 Sep 8 Weeks EuropeEBV Elektronik 15
UC2637NAs of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 2240*  6 Weeks AmericasArrow 40
  Avnet 6
  DigiKey 293
  Mouser Electronics 75
  Newark 90
  Rochester Electronics 17
  AsiaWPI 50
  EuropeAvnet-SILICA 10
UC2637NG4As of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 2240*  6 Weeks EuropeFarnell 66
UC2637QAs of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1932* 3710 | 13 Oct 6 Weeks AmericasArrow 30
 >10k | 20 Oct Rochester Electronics 920
  EuropeEBV Elektronik 18
  Spoerle 20
UC2637QG3As of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1932* 3710 | 13 Oct 6 Weeks None Reported
View Distributors
   
 >10k | 20 Oct     
UC2637QTRAs of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 2000* 1000 | 29 Aug 6 Weeks None Reported
View Distributors
   
 868 | 2 Sep     
 3776 | 17 Sep     
 3709 | 20 Oct     
 >10k | 27 Oct     
UC2637QTRG3As of 7:42 AM GMT, 20 Aug 2008As of 7:42 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 2000* 1000 | 29 Aug 6 Weeks None Reported
View Distributors
   
 868 | 2 Sep     
 3776 | 17 Sep     
 3709 | 20 Oct     
 >10k | 27 Oct     
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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
UC2637DW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2637DWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2637DWTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2637DWTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2637J  TBD A42 SNPB N/A for Pkg TypeViewView
UC2637N RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UC2637NG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UC2637Q RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEARViewView
UC2637QG3 RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEARViewView
UC2637QTR RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEARViewView
UC2637QTRG3 RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEARViewView

* 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

Datasheets

  • Switched Mode Controller for DC Motor Drive (uc2637.pdf, 530 KB)
    05 Sep 1999 Download

Application Notes

  • U-120 A Simplified Approach to DC Motor Modeling for Dynamic Stability Analysis (slua076.htm, 8 KB)
    05 Sep 1999 Abstract
  • U-112 A High Precision PWM Transconductance Amplifier for Microstepping (slua073.htm, 9 KB)
    05 Sep 1999 Abstract
  • U-102 UC1637/2637/3637 Switched Mode Controller for DC Motor Drive (slua137.htm, 8 KB)
    05 Sep 1999 Abstract
  • DN-53A Design Considerations for Synchronizing Multiple UC3637 PWMs (slua184.htm, 8 KB)
    05 Sep 1999 Abstract
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Customers Who Evaluated This Product Also Evaluated...
Part #Name Comments
UC3638Advanced PWM Motor ControllerTI customers also evaluated this product.
UC1637Switched Mode Controller for DC Motor DriveTI customers also evaluated this product.
UC3770AHigh Performance Stepper Motor Drive CircuitTI customers also evaluated this product.
UC3637Switched Mode Controller for DC Motor DriveTI customers also evaluated this product.

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