MIC2841AYMT-TR
Active4 CHANNEL LINEAR WLED DRIVER WITH PWM CONTROL 10 UDFN 2X2X0.6MM T/R ROHS COMPLIANT: YES
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MIC2841AYMT-TR
Active4 CHANNEL LINEAR WLED DRIVER WITH PWM CONTROL 10 UDFN 2X2X0.6MM T/R ROHS COMPLIANT: YES
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Technical Specifications
Parameters and characteristics for this part
| Specification | MIC2841AYMT-TR |
|---|---|
| Applications | Camera Flash, Backlight |
| Current - Output / Channel [custom] | 20 mA |
| Dimming | PWM |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 4 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 10-UFDFN Exposed Pad, 10-TMLF® |
| Supplier Device Package | 10-TMLF® (2x2) |
| Type | Linear |
| Voltage - Supply (Max) | 5.5 V |
| Voltage - Supply (Min) [Min] | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 0.72 | |
| 25 | $ 0.59 | |||
| 100 | $ 0.54 | |||
| Digi-Reel® | 1 | $ 0.72 | ||
| 25 | $ 0.59 | |||
| 100 | $ 0.54 | |||
| Tape & Reel (TR) | 5000 | $ 0.54 | ||
| Microchip Direct | T/R | 1 | $ 0.72 | |
| 25 | $ 0.59 | |||
| 100 | $ 0.54 | |||
| 1000 | $ 0.53 | |||
| 5000 | $ 0.52 | |||
| Newark | Each (Supplied on Full Reel) | 100 | $ 0.57 | |
Description
General part information
MIC2841A Series
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.
Documents
Technical documentation and resources