MIC2841AYMT-TR More Semiconductors - ICs by Microchip Technology
High Efficiency 4-Channel Linear WLED Driver with DAM™ and Ultra Fast PWM™ Control
| Status: | Active |
|---|---|
| Series: | MIC2841A |
| RoHS: | Compliant |
The MIC2841A is a high efficiency White LED (WLED) driver designed to drive up to four WLEDs, greatly extending battery life for portable display backlighting, keypad backlighting and camera flash in mobile devices. The MIC2841A provides the highest possible efficiency as this architecture has no switching losses present in traditional charge pumps or inductive boost circuits. The MIC2841A provides four linear driver channels which maintain constant current for up to four WLEDs. It features a typical dropout of 40mV at 20mA. This allows the WLEDs to be driven directly from the battery eliminating switching noise/losses present with the use of boost circuitry.
The MIC2841A features Dynamic Average Matching™ (DAM™) which is specifically designed to provide optimum matching across all WLEDs. The four channels are matched better than ±1.5% typical, ensuring uniform display illumination under all conditions. The brightness is controlled through an Ultra Fast PWM™ interface operating down to less than 1% duty cycle.
The MIC2841A operates over a junction temperature range of -40°C to +125°C.
Features
| High efficiency (no voltage boost losses) |
| Dynamic Average Matching™ (DAM™) |
| Ultra Fast PWM™ control (200Hz to 500kHz) |
| Input voltage range: 3.0V to 5.5V |
| Dropout of 40mV at 20mA |
| Matching better than ±1.5% (typical) |
| Current accuracy better than ±1.5% (typical) |
| Maintains proper regulation regardless of how many channels are utilized |
Specifications
| Topology | Linear |
|---|---|
| +Vin min (V) | 3 |
| +Vin max (V) | 5.5 |
| Dimming | PWM |
| Package | UDFN |
| Product Type | Linear LED Drivers |
| # of White LEDs | 4 @ 20mA |
| Operating Iq (µA) | 1.4 |
| Vfb (V) | 0 |
| ILED Matching | ±1.5% |
| Oja (C/W) | 90 |
| Vdropout @ 20mA | 40mV |
| Extra LDOs | 0 |
| Vdropout (mV) | 0 |
| IQ LDO | 0 |
| Pins | Packaging | 10 | UDFN |
| Temp Range | -40C to +125C |
| Packing Media | Tape and reel (5000) |
Environmental Information
| JEDEC Indicator | e4 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.0078 |
| Shipping Weight (kg) | 0.5518 |
| Lead Count | 10 |
| Package Type | UDFN |
| Package Width or Size | 2x2x0.6mm |
| Soldering Composition | NiPdAu |
Alternative Descriptions
| Led Driver, Pwm, 20Hz-500Khz, Tmlf-10 | Newark Electronics |
| MIC2841 Series 500 kHz 4 Channel Linear WLED Driver with PWM Control - TMLF-10 | Future Electronics |
| LED DRVR Boost 4-CH PWM 5.5V 0.02A 10-Pin UDFN T/R | Avnet America |
| 4 Channel Linear WLED Driver with PWM Control | Microchip Technology |
| LED DRIVER, PWM, 20HZ-500KHZ, TMLF-10 | Farnell |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MIC2841AYMT-TR?
Additional datasheets, footprints and schematics for MIC2841AYMT-TR are listed on our Part Details page. You can also find images and similar parts to MIC2841AYMT-TR on this page.
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What category does MIC2841AYMT-TR fall under?
The MIC2841AYMT-TR is listed under Semiconductors - ICs > More Semiconductors - ICs.
Can I view similar or alternative parts?
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Submit any questions directly to the customer support team of the distributor listing the product. For the MIC2841AYMT-TR you can contact the distributor directly for product support, shipping queries etc.
Is the MIC2841AYMT-TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MIC2841AYMT-TR have stock available?
Authorised distributors including Newark Electronics, Future Electronics, Avnet America, Microchip Technology and Farnell have stock available or on a lead time for MIC2841AYMT-TR.
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