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UC3770B Status: ACTIVE

High Performance Stepper Motor Drive Circuit


      
         
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 UC3770B
Operating Supply(Min)(V)10  
Operating Supply(Max)(V)45  
Operating Supply Current(mA)33  
Peak Output Current(A)1.5  
Pin/Package16PDIP  
RatingCatalog  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • UC3770A: High Performance Stepper Motor Drive Circuit
  • UC3717A: Stepper Motor Drive Circuit
  • UCC3626: Brushless DC Motor Controller

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Product Information

Features

  • Full-Step, Half-Step and Micro-Step Capability
  • Bipolar Output Current up to 2A
  • Wide Range of Motor Supply Voltage: 10\x9650V
  • Low Saturation Voltage
  • Wide Range of Current Control: 5mA\x962A
  • Current Levels Selected in Steps or Varied Continuously
  • Thermal Protection and Soft Intervention

Description

The UC3770A and UC3770B are high-performance full bridge drivers that offer higher current and lower saturation voltage than the UC3717 and the UC3770. Included in these devices are LS-TTL compatible logic inputs, current sense, monostable, thermal shutdown, and a power H-bridge output stage. Two UC3770As or UC3770Bs and a few external components form a complete micro-processor-controllable stepper motor power system.

Unlike the UC3717, the UC3770A and the UC3770B require external high-side clamp diodes. The UC3770A and UC3770B are identical in all regards except for the current sense thresholds. Thresholds for the UC3770A are identical to those of the older UC3717 permitting drop-in replacement in applications where high-side diodes are not required.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UC3770BNACTIVE0 to 703.30 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC3770BNG4ACTIVE0 to 703.30 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint

* 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 9:53 AM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksUC3770BN
AmericasRochester Electronics >1k
TI Lead Time*: 20 WeeksUC3770BNG4
None Reported
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** 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
UC3770BN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UC3770BNG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView

* 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 UC3770B Help

Datasheet

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
UC3770A High Performance Stepper Motor Drive Circuit POWER MANAGEMENT SPECIAL FUNCTIONS-MOTION/MOTOR CONTROL TI customers also evaluated this product.
UC3717A Stepper Motor Drive Circuit POWER MANAGEMENT SPECIAL FUNCTIONS-MOTION/MOTOR CONTROL TI customers also evaluated this product.
UCC3626 Brushless DC Motor Controller POWER MANAGEMENT SPECIAL FUNCTIONS-MOTION/MOTOR CONTROL TI customers also evaluated this product.
UC3638 Advanced PWM Motor Controller POWER MANAGEMENT SPECIAL FUNCTIONS-MOTION/MOTOR CONTROL TI customers also evaluated this product.
UC3176 Full Bridge Power Amplifier POWER MANAGEMENT SPECIAL FUNCTIONS-MOTION/MOTOR CONTROL TI customers also evaluated this product.
UC3637 Switched Mode Controller for DC Motor Drive POWER MANAGEMENT SPECIAL FUNCTIONS-MOTION/MOTOR CONTROL TI customers also evaluated this product.

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