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UCC3580-4 Status: ACTIVE

Single-Ended Active Clamp/Reset PWM


      
         
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See Also

  • UCC2891 - This device has SIMILAR FUNCTIONALITY, newer device with better features
  • UCC2897A - This device has SIMILAR FUNCTIONALITY, newer device with better features

Datasheet

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Other qualified versions of UCC3580-4

Version Part Number Definition
Military UCC1580-4 QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

  • UCC3580: Single Ended Active Clamp/Reset PWM
  • UCC2897A: Advanced Current-Mode Active Clamp PWM Controller

Product Information

Features

  • Provides Auxiliary Switch Activation Complementary to Main Power Switch Drive
  • Programmable deadtime (Turn-on Delay) Between Activation of Each Switch
  • Voltage Mode Control with Feedforward Operation
  • Programmable Limits for Both Transformer Volt- Second Product and PWM Duty Cycle
  • High Current Gate Driver for Both Main and Auxiliary Outputs
  • Multiple Protection Features with Latched Shutdown and Soft Restart
  • Low Supply Current (100 µA Startup, 1.5mA Operation)

Description

The UCC3580 family of PWM controllers is designed to implement a variety of active clamp/reset and synchronous rectifier switching converter topologies. While containing all the necessary functions for fixed frequency, high performance pulse width modulation, the additional feature of this design is the inclusion of an auxiliary switch driver which complements the main power switch, and with a programmable deadtime or delay between each transition. The active clamp/reset technique allows operation of single ended converters beyond 50% duty cycle while reducing voltage stresses on the switches, and allows a greater flux swing for the power transformer. This approach also allows a reduction in switching losses by recovering energy stored in parasitic elements such as leakage inductance and switch capacitance.

The oscillator is programmed with two resistors and a capacitor to set switching frequency and maximum duty cycle. A separate synchronized ramp provides a voltage feedforward pulse width modulation and a programmed maximum volt-second limit. The generated clock from the oscillator contains both frequency and maximum duty cycle information.

The main gate drive output (OUT1) is controlled by the pulse width modulator. The second output (OUT2) is intended to activate an auxiliary switch during the off time of the main switch, except that between each transition there is deadtime where both switches are off, programmed by a single external resistor. This design offers two options for OUT2, normal and inverted. In the -1 and -2 versions, OUT2 is normal and can be used to drive PMOS FETs. In the -3 and -4 versions, OUT2 is inverted and can be used to drive NMOS FETs. In all versions, both the main and auxiliary switches are held off prior to startup and when the PWM command goes to zero duty cycle. During fault conditions, OUT1 is held off while OUT2 operates at maximum duty cycle with a guaranteed off time equal to the sum of the two deadtimes.

Undervoltage lockout monitors supply voltage (VDD), the precision reference (REF), input line voltage (LINE), and the shutdown comparator (SHTDWN). If after any of these four have sensed a fault condition, recovery to full operation is initiated with a soft start. VDD thresholds, on and off, are 15V and 8.5V for the -2 and -4 versions, 9V and 8.5V for the -1 and -3 versions.

The UCC1580-x is specified for operation over the military temperature range of –55°C to 125°C. The UCC2580-x is specified from –40°C to 85°C. The UCC3580-x is specified from 0°C to 70°C. Package options include 16-pin surface mount and dual in-line.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UCC3580D-4ACTIVE0 to 702.65 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3580D-4G4ACTIVE0 to 702.65 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3580DTR-4ACTIVE0 to 702.40 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3580DTR-4G4ACTIVE0 to 702.40 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3580N-4ACTIVE0 to 702.65 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3580N-4G4ACTIVE0 to 702.65 | 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 9:46 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 1 WeekUCC3580D-4
AsiaWPI 74
EuropeAvnet-SILICA 40
EBV Elektronik 40
WorldwideDigiKey 242
Mouser Electronics 45
TI Lead Time*: 1 WeekUCC3580D-4G4
EuropeEBV Elektronik 40
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC3580DTR-4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC3580DTR-4G4
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksUCC3580N-4
AmericasRochester Electronics >1k
WorldwideDigiKey 117
Mouser Electronics 148
TI Lead Time*: 4 WeeksUCC3580N-4G4
EuropeEBV Elektronik 25
WorldwideMouser Electronics 148
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
UCC3580D-4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC3580D-4G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC3580DTR-4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC3580DTR-4G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC3580N-4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UCC3580N-4G4 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 UCC3580-4 Help

Datasheet

Application Notes

View Application Notes for PWM Power Supply Controllers

User Guides

View User Guides for PWM Power Supply Controllers

Reference Designs

Description Part # Company
Active Clamp Forward Reference Design PMP368 Texas Instruments
Highly Efficient 100W Isolated Power Supply Reference Design Using UCC3580-1 PMP206 Texas Instruments

Tools & Software

NamePart # Company Tool / Software Type
UCC3580EVM Evaluation ModuleUCC3580EVMTexas InstrumentsDevelopment Boards/EVMs

Part # Name Product Family Comments
UCC2891   Current Mode Active Clamp PWM Controller   AC/DC AND DC/DC POWER SUPPLIES - PWM POWER SUPPLY CONTROLLERS   This device has SIMILAR FUNCTIONALITY, newer device with better features  
UCC2897A   Advanced Current-Mode Active Clamp PWM Controller   AC/DC AND DC/DC POWER SUPPLIES - PWM POWER SUPPLY CONTROLLERS   This device has SIMILAR FUNCTIONALITY, newer device with better features  
Customers Who Evaluated This Product Also Evaluated...
UCC3580 Single Ended Active Clamp/Reset PWM AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UCC2897A Advanced Current-Mode Active Clamp PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.

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