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Product InformationFeatures
Description
The TPS61042 is a high frequency boost converter with constant current output that drives white LEDs or similar. The LED current is set with the external sense resistor (RS) and is directly regulated by the feedback pin (FB) that regulates the voltage across the sense resistor RS to 252 mV (typ). To control LED brightness, the LED current can be pulsed by applying a PWM (pulse width modulated) signal with a frequency range of 100 Hz to 50 kHz to the control pin (CTRL). To allow higher flexibility, the device can be configured where the brightness can be controlled by an analog signal as well. To avoid possible leakage currents through the LEDs during shutdown, the control pin (CTRL) disables the device and disconnects the LEDs from ground. For maximum safety during operation, the output has integrated overvoltage protection that prevents damage to the device in case of a high impedance output (e.g. faulty LED). |
| Price | Packaging | CAD Design Tools | Samples | |||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Samples |
| TPS61042DRBR | ACTIVE | -40 to 85 | 0.75 | 1ku | SON (DRB) | 8 | View | 3000 | LARGE T&R | ||
| TPS61042DRBRG4 | ACTIVE | -40 to 85 | 0.75 | 1ku | SON (DRB) | 8 | View | 3000 | LARGE T&R | ||
| TPS61042DRBT | ACTIVE | 0.85 | 1ku | SON (DRB) | 8 | View | 250 | SMALL T&R | Purchase Samples | ||
| TPS61042DRBTG4 | ACTIVE | 0.85 | 1ku | SON (DRB) | 8 | View | 250 | SMALL 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 10:02 AM GMT, 06 Nov 2009 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 4 WeeksTPS61042DRBR | |||
| Americas | Arrow | >1k | |
| Newark | >1k | ||
| Rochester Electronics | >1k | ||
| Asia | Farnell Asia | >1k | |
| Europe | Farnell | 96 | |
| Worldwide | Mouser Electronics | 117 | |
| TI Lead Time*: 4 WeeksTPS61042DRBRG4 | |||
| Asia | Farnell Asia | 164 | |
| WPI | 370 | ||
| Europe | Farnell | 128 | |
| TI Lead Time*: 20 WeeksTPS61042DRBT | |||
| Americas | Arrow | 1k | |
| Avnet | 750 | ||
| Rochester Electronics | >1k | ||
| Europe | Compel | 111 | |
| Worldwide | Mouser Electronics | 73 | |
| TI Lead Time*: 20 WeeksTPS61042DRBTG4 | |||
| None Reported View 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.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
| TPS61042DRBR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TPS61042DRBRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TPS61042DRBT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TPS61042DRBTG4 | 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 TPS61042 
View Application Notes for White LED Drivers
| Name | Part # | Company | Tool / Software Type |
| TPS61042 EVM for Constant-Current White LED Supply w/ PWM Brightness Ctrl | TPS61042EVM-226 | Texas Instruments | Development Boards/EVMs |
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