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Special NoteYou can program this part for 90% Maximum Duty Cycle for frequencies of 250kHz or less with added components, per SLUA251
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Product InformationFeatures
Description
The UCC3809 family of BCDMOS economy low power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count. Internally implemented circuits include undervoltage lockout featuring startup current less than 100µA, a user accessible voltage reference, logic to ensure latched operation, a PWM comparator, and a totem pole output stage to sink or source peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off state. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3809 family also features full cycle soft start. The family has UVLO thresholds and hysteresis levels for off-line and DC-to-DC systems as shown in the table to the left. The UCC3809 and the UCC2809 are offered in the 8 pin SOIC (D), PDIP (N), TSSOP (PW), and MSOP (P) packages. The small TSSOP and MSOP packages make the device ideal for applications where board space and height are at a premium. |
| Price | Packaging | CAD Design Tools | Samples | ||||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| UCC3809D-1 | ACTIVE | 0 to 70 | 1.00 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | |||
| UCC3809D-1G4 | ACTIVE | 0 to 70 | 1.00 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | |||
| UCC3809DTR-1 | ACTIVE | 0 to 70 | 0.90 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| UCC3809DTR-1G4 | ACTIVE | 0 to 70 | 0.90 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| UCC3809N-1 | ACTIVE | 0 to 70 | 1.15 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | |||
| UCC3809N-1G4 | ACTIVE | 0 to 70 | 1.15 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | |||
| UCC3809P-1 | ACTIVE | 0 to 70 | 1.00 | 1ku | MSOP (DGK) | 8 | View | 80 | TUBE | |||
| UCC3809P-1G4 | ACTIVE | 0 to 70 | 1.00 | 1ku | MSOP (DGK) | 8 | View | 80 | TUBE | |||
| UCC3809PTR-1 | ACTIVE | 0 to 70 | 0.90 | 1ku | MSOP (DGK) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| UCC3809PTR-1G4 | ACTIVE | 0 to 70 | 0.90 | 1ku | MSOP (DGK) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| UCC3809PW-1 | ACTIVE | 0 to 70 | 1.15 | 1ku | TSSOP (PW) | 8 | View | 150 | TUBE | |||
| UCC3809PW-1G4 | ACTIVE | 0 to 70 | 1.15 | 1ku | TSSOP (PW) | 8 | View | 150 | TUBE | |||
| UCC3809PWTR-1 | ACTIVE | 0 to 70 | 0.90 | 1ku | TSSOP (PW) | 8 | View | 2000 | LARGE T&R | Purchase Samples | ||
| UCC3809PWTR-1G4 | ACTIVE | 0 to 70 | 0.90 | 1ku | TSSOP (PW) | 8 | View | 2000 | LARGE T&R | Purchase 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.
| Reported Distributor Inventory as of 9:40 AM GMT, 06 Nov 2009 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 20 WeeksUCC3809D-1 | |||
| Americas | Rochester Electronics | >1k | |
| Asia | WPI | 88 | |
| Worldwide | DigiKey | 112 | |
| TI Lead Time*: 20 WeeksUCC3809D-1G4 | |||
| Americas | Avnet | >1k | |
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 20 WeeksUCC3809DTR-1 | |||
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 20 WeeksUCC3809DTR-1G4 | |||
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 1 WeekUCC3809N-1 | |||
| Americas | Rochester Electronics | >1k | |
| Europe | EBV Elektronik | 4 | |
| Worldwide | DigiKey | 92 | |
| TI Lead Time*: 1 WeekUCC3809N-1G4 | |||
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 6 WeeksUCC3809P-1 | |||
| Americas | Rochester Electronics | >1k | |
| Worldwide | DigiKey | 361 | |
| Mouser Electronics | 220 | ||
| TI Lead Time*: 6 WeeksUCC3809P-1G4 | |||
| Americas | Rochester Electronics | >1k | |
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 20 WeeksUCC3809PTR-1 | |||
| Americas | Rochester Electronics | >1k | |
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 20 WeeksUCC3809PTR-1G4 | |||
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 1 WeekUCC3809PW-1 | |||
| Americas | Rochester Electronics | >1k | |
| Worldwide | DigiKey | 147 | |
| Mouser Electronics | 300 | ||
| TI Lead Time*: 1 WeekUCC3809PW-1G4 | |||
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 4 WeeksUCC3809PWTR-1 | |||
| Americas | Rochester Electronics | >1k | |
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 4 WeeksUCC3809PWTR-1G4 | |||
| Worldwide | DigiKey | Available | |
** 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.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
UCC3809D-1  | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| UCC3809D-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| UCC3809DTR-1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| UCC3809DTR-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| UCC3809N-1 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | View | View |
| UCC3809N-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | View | View |
| UCC3809P-1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC3809P-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC3809PTR-1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC3809PTR-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC3809PW-1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC3809PW-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC3809PWTR-1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC3809PWTR-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
* 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.
Most useful technical documents for UCC3809-1 
View Application Notes for PWM Power Supply Controllers
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| Flyback with Vin 36-72 V and Vout +/- 135 V | PMP069 | Texas Instruments |
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| Single Transistor Forward Reference Design | PMP180 | Texas Instruments |
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| Name | Part # | Company | Tool / Software Type |
| UCC3809 Evaluation Module | UCC3809EVM | Texas Instruments | Development Boards/EVMs |
| Part # | Name | Product Family | Comments |
| TMS320C6701 | Floating-Point Digital Signal Processor | C6000 FLOATING/FIXED-POINT DSPS - TMS320C67X DSP GENERATION | |
| TMS320C6711D | Floating-Point Digital Signal Processors | C6000 FLOATING/FIXED-POINT DSPS - TMS320C67X DSP GENERATION | |
| TMS320C6712D | Floating-Point Digital Signal Processors | C6000 FLOATING/FIXED-POINT DSPS - TMS320C67X DSP GENERATION | |
| TMS320C6713B | Floating-Point Digital Signal Processors | C6000 FLOATING/FIXED-POINT DSPS - TMS320C67X DSP GENERATION | |
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