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Other qualified versions of UC3846
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Product InformationFeatures
Description
The UC1846/7 family of control ICs provides all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the ability to parallel "power modules" while maintaining equal current sharing. Protection circuitry includes built-in under-voltage lockout and programmable current limit in addition to soft start capability. A shut-down function is also available which can initiate either a complete shutdown with automatic restart or latch the supply off. Other features include fully latched operation, double pulse suppression, deadline adjust capability, and a ±1% trimmed bandgap reference. The UC1846 features low outputs in the OFF state, while the UC1847 features high outputs in the OFF state. |
| Price | Packaging | CAD Design Tools | Samples | ||||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| UC3846DW | ACTIVE | 0 to 70 | 1.75 | 1ku | SOIC (DW) | 16 | View | 40 | TUBE | |||
| UC3846DWG4 | ACTIVE | 0 to 70 | 1.75 | 1ku | SOIC (DW) | 16 | View | 40 | TUBE | |||
| UC3846DWTR | ACTIVE | 0 to 70 | 1.70 | 1ku | SOIC (DW) | 16 | View | 2000 | LARGE T&R | Purchase Samples | ||
| UC3846DWTRG4 | ACTIVE | 0 to 70 | 1.70 | 1ku | SOIC (DW) | 16 | View | 2000 | LARGE T&R | Purchase Samples | ||
| UC3846N | ACTIVE | 0 to 70 | 1.75 | 1ku | PDIP (N) | 16 | View | 25 | TUBE | |||
| UC3846NG4 | ACTIVE | 0 to 70 | 1.75 | 1ku | PDIP (N) | 16 | View | 25 | TUBE | |||
| UC3846Q | ACTIVE | 0 to 70 | 2.10 | 1ku | PLCC (FN) | 20 | View | 46 | TUBE | Purchase Samples | ||
| UC3846QG3 | ACTIVE | 0 to 70 | 2.10 | 1ku | PLCC (FN) | 20 | View | 46 | TUBE | Purchase Samples | ||
| UC3846QTR | ACTIVE | 0 to 70 | 1.70 | 1ku | PLCC (FN) | 20 | View | 1000 | LARGE T&R | Purchase Samples | ||
| UC3846QTRG3 | ACTIVE | 0 to 70 | 1.70 | 1ku | PLCC (FN) | 20 | View | 1000 | 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.
| TI Inventory Status | Reported Distributor Inventory | |||||
| UC3846DW | As of 8:08 AM GMT, 03 Jul 2009 | As of 8:08 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 6 Weeks | Americas | Arrow | >1k | |||
| Avnet | >1k | |||||
| DigiKey | 393 | |||||
| Newark | 603 | |||||
| Rochester Electronics | >1k | |||||
| Europe | Arrow Southern Europe | 40 | ||||
| Avnet-SILICA | 800 | |||||
| UC3846DWG4 | As of 8:08 AM GMT, 03 Jul 2009 | As of 8:08 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 6 Weeks | Americas | DigiKey | Available | |||
| Europe | EBV Elektronik | 200 | ||||
| UC3846DWTR | As of 8:08 AM GMT, 03 Jul 2009 | As of 8:08 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 6 Weeks | Americas | DigiKey | Available | |||
| Asia | WPI | >1k | ||||
| UC3846DWTRG4 | As of 8:08 AM GMT, 03 Jul 2009 | As of 8:08 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 6 Weeks | Americas | DigiKey | Available | |||
| Europe | EBV Elektronik | 1k | ||||
| UC3846N | As of 8:08 AM GMT, 03 Jul 2009 | As of 8:08 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 6 Weeks | Americas | Arrow | 857 | |||
| Avnet | >1k | |||||
| DigiKey | 546 | |||||
| Mouser Electronics | 157 | |||||
| Newark | >1k | |||||
| Rochester Electronics | >1k | |||||
| Asia | WPI | 15 | ||||
| Europe | Arrow Northern Europe | 46 | ||||
| EBV Elektronik | 2 | |||||
| Farnell | 58 | |||||
| UC3846NG4 | As of 8:08 AM GMT, 03 Jul 2009 | As of 8:08 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 6 Weeks | Americas | DigiKey | Available | |||
| Mouser Electronics | 127 | |||||
| Europe | EBV Elektronik | 900 | ||||
| UC3846Q | As of 8:08 AM GMT, 03 Jul 2009 | As of 8:08 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 8 Weeks | Americas | Mouser Electronics | 34 | |||
| Rochester Electronics | >1k | |||||
| UC3846QG3 | As of 8:08 AM GMT, 03 Jul 2009 | As of 8:08 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 8 Weeks | None Reported View Distributors | |||||
| UC3846QTR | As of 8:08 AM GMT, 03 Jul 2009 | As of 8:08 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 8 Weeks | None Reported View Distributors | |||||
| UC3846QTRG3 | As of 8:08 AM GMT, 03 Jul 2009 | As of 8:08 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 8 Weeks | Americas | Avnet | 1k | |||
** 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 |
| UC3846DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UC3846DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UC3846DWTR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UC3846DWTRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UC3846N | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | View | View |
| UC3846NG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | View | View |
| UC3846Q | Green (RoHS & no Sb/Br) | CU SN | Level-2-260C-1 YEAR | View | View |
| UC3846QG3 | Green (RoHS & no Sb/Br) | CU SN | Level-2-260C-1 YEAR | View | View |
| UC3846QTR | Green (RoHS & no Sb/Br) | CU SN | Level-2-260C-1 YEAR | View | View |
| UC3846QTRG3 | Green (RoHS & no Sb/Br) | CU SN | 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 UC3846 
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