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Product InformationFeatures
Description
The TL284x and TL384x series of control integrated circuits provide the features that are necessary to implement off-line or dc-to-dc fixed-frequency current-mode control schemes, with a minimum number of external components. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator (that also provides current-limit control), and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state. Major differences between members of these series are the UVLO thresholds and maximum duty-cycle ranges. Typical UVLO thresholds of 16 V (on) and 10 V (off) on the TLx842 and TLx844 devices make them ideally suited to off-line applications. The corresponding typical thresholds for the TLx843 and TLx845 devices are 8.4 V (on) and 7.6 V (off). The TLx842 and TLx843 devices can operate to duty cycles approaching 100%. A duty-cycle range of 0 to 50% is obtained by the TLx844 and TLx845 by the addition of an internal toggle flip-flop, which blanks the output off every other clock cycle. The TL284x-series devices are characterized for operation from 40°C to 85°C. The TL384x devices are characterized for operation from 0° to 70°C. |
| Price | Packaging | CAD Design Tools | Samples | ||||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| TL3842D | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 14 | View | 50 | TUBE | Purchase Samples | ||
| TL3842D-8 | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | Purchase Samples | ||
| TL3842DE4 | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 14 | View | 50 | TUBE | Purchase Samples | ||
| TL3842DE4-8 | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | Purchase Samples | ||
| TL3842DG4 | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 14 | View | 50 | TUBE | Purchase Samples | ||
| TL3842DG4-8 | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | Purchase Samples | ||
| TL3842DR | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 14 | View | 2500 | LARGE T&R | Purchase Samples | ||
| TL3842DR-8 | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Contact TI Distributor or Sales Office | ||
| TL3842DRE4 | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 14 | View | 2500 | LARGE T&R | Purchase Samples | ||
| TL3842DRE4-8 | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Contact TI Distributor or Sales Office | ||
| TL3842DRG4 | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 14 | View | 2500 | LARGE T&R | Purchase Samples | ||
| TL3842DRG4-8 | ACTIVE | 0 to 70 | 0.40 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Contact TI Distributor or Sales Office | ||
| TL3842P | ACTIVE | 0 to 70 | 0.40 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | Contact TI Distributor or Sales Office | ||
| TL3842PE4 | ACTIVE | 0 to 70 | 0.40 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | Contact TI Distributor or Sales Office | ||
* 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 | |||||||
| TL3842D | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 2900* | >10k | 17 Dec | 4 Weeks | Americas | Arrow | 999 | |||
| Rochester Electronics | >1k | |||||||
| TL3842D-8 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | >10k | 4 Nov | 4 Weeks | Americas | Rochester Electronics | >1k | |||
| Europe | Avnet-SILICA | 900 | ||||||
| TL3842DE4 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 2900* | >10k | 17 Dec | 4 Weeks | None Reported View Distributors | |||||
| TL3842DE4-8 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | >10k | 4 Nov | 4 Weeks | None Reported View Distributors | |||||
| TL3842DG4 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 2900* | >10k | 17 Dec | 4 Weeks | None Reported View Distributors | |||||
| TL3842DG4-8 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | >10k | 4 Nov | 4 Weeks | None Reported View Distributors | |||||
| TL3842DR | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 890 | 17 Oct | 7 Weeks | Americas | Avnet | >1k | |||
| >10k | 17 Dec | Mouser Electronics | >1k | ||||||
| Rochester Electronics | 541 | |||||||
| Asia | WPI | >1k | ||||||
| TL3842DR-8 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 6501 | 27 Oct | 4 Weeks | Americas | DigiKey | 142 | |||
| >10k | 6 Nov | Rochester Electronics | >1k | ||||||
| Asia | WPI | >1k | ||||||
| TL3842DRE4 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 890 | 17 Oct | 7 Weeks | None Reported View Distributors | |||||
| >10k | 17 Dec | ||||||||
| TL3842DRE4-8 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 6501 | 27 Oct | 4 Weeks | None Reported View Distributors | |||||
| >10k | 6 Nov | ||||||||
| TL3842DRG4 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 890 | 17 Oct | 7 Weeks | None Reported View Distributors | |||||
| >10k | 17 Dec | ||||||||
| TL3842DRG4-8 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 6501 | 27 Oct | 4 Weeks | None Reported View Distributors | |||||
| >10k | 6 Nov | ||||||||
| TL3842P | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | >10k | 28 Oct | 4 Weeks | Americas | Arrow | 450 | |||
| DigiKey | 17 | |||||||
| Mouser Electronics | 795 | |||||||
| Newark | >1k | |||||||
| Rochester Electronics | >1k | |||||||
| Asia | WPI | 574 | ||||||
| Europe | EBV Elektronik | 600 | ||||||
| Farnell | >1k | |||||||
| TL3842PE4 | As of 8:22 AM GMT, 15 Oct 2008 | As of 8:22 AM GMT, 15 Oct 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | >10k | 28 Oct | 4 Weeks | None Reported View 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.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
| TL3842D | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842D-8 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842DE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842DE4-8 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842DG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842DG4-8 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842DR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842DR-8 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842DRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842DRE4-8 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842DRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842DRG4-8 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TL3842P | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | View | View |
| TL3842PE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | 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.
View Application Notes for PWM Power Supply Controllers
View User Guides for PWM Power Supply Controllers
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