MIC3263YML-TR More Semiconductors - ICs by Microchip Technology
Six Channel WLED Driver for Backlighting Applications
| Status: | Active |
|---|---|
| Series: | MIC3263 |
| RoHS: | Compliant |
The MIC3263 is a high-efficiency pulse-width modulation (PWM) boost switching regulator that is optimized for constant-current WLED driver backlighting applications. The MIC3263 drives six channels of up to ten WLEDs per channel. Each channel is matched in current to within ±3% for constant brightness across the screen and can be programmed from 15mA to 30mA.
The MIC3263 provides a very flexible dimming control scheme with better accuracy and noise immunity. The dimming frequency can be set to any value between 100Hz and 20kHz by an external resistor. The dimming ratio is determined by the duty cycle of a dimming ratio control input signal and can be set to one of 16 levels with a minimum ratio of 1%.The LED dimming current is set by an external resistor to allow programming of LED current between 15mA and 30mA.
The dimming ratio of the MIC3263 is fixed to 16 log levels to better match the sensitivity of the human eye. Each of the dimming levels has hysteresis to avoid skipping between levels and allow for high noise immunity.
The MIC3263 has a programmable PWM switching frequency from 400kHz to 1.8MHz to allow small inductor sizes. The 6V to 40V wide input voltage range of MIC3263 allows direct operation from 6V or high cell count Li-Ion batteries commonly found in notebook computers.
Where to Buy
Prices starting from US$2.30
Features
| 6V to 40V wide input voltage range |
| Drives six channels of up to 10 white LEDs |
| Programmable WLED current from 15mA to 30mA |
| Highly reliable operation with open and short LEDs |
| Accurate 16 dimming log levels sets the dimming ratio from 1% to 100% |
| Flicker-Free Dimming filters the jitter from the dimming control input signal and eliminates dimming flicker |
| Allows external dimming control |
| Accurate LED channel current matching ±3% |
| Accurate initial LED current setting ±2% |
| Programmable switching frequency from 400kHz to 1.8MHz |
| High efficiency up to 90% |
| Low (<40µA) shutdown current over temperature |
| Over temperature protection |
| Programmable over-voltage protection |
| -40°C to -125°C junction temperature range |
Specifications
| Topology | Boost |
|---|---|
| +Vin min (V) | 6 |
| +Vin max (V) | 40 |
| Output Current | 2A BJT |
| Dimming | PWM |
| Package | VDFN |
| Product Type | LED Backlight |
| VOUT | 40 |
| llim Typ (A) | 2.4 |
| llim Max (A) | 0 |
| lq Typ | 6.5mA |
| Vfb (V) | 2.36 |
| Tol Typ % | ±3 |
| Duty Cycle Max | 0.9 |
| Freq (Hz) | 400K-1.8M |
| OVP | Yes |
| VEN (V) | 1.3 |
| EN | Yes |
| Ceramic Cap | Yes |
| Oja (C/W) | 43 |
Last 6 months Inventory & Pricing History
Environmental Information
| JEDEC Indicator | e4 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.0422 |
| Shipping Weight (kg) | 0.204 |
| Lead Count | 24 |
| Package Type | VQFN |
| Package Width or Size | 4x4x0.9mm |
| Soldering Composition | NiPdAu |
Alternative Descriptions
| Six Channel Wled Driver For Backlighting Applications 24 Vqfn 4X4X0.9Mm T/R Rohs Compliant: Yes |Microchip Technology MIC3263YML-TR | Newark Electronics |
| SIX CHANNEL WLED DRIVER FOR BACKLIGHTING APPLICATIONS | Future Electronics |
| LED Driver DC/DC, Boost (Step Up), Isolated, 6 V to 40 V, 2 A, 40 V, 1.2 MHz, 24 Pins, VQFN | Avnet America |
| IC: driver | TME |
| LED DRIVER, 6CH, BKLT, 24MLF | Farnell |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MIC3263YML-TR?
Additional datasheets, footprints and schematics for MIC3263YML-TR are listed on our Part Details page. You can also find images and similar parts to MIC3263YML-TR on this page.
What pricing and inventory information can I view?
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What category does MIC3263YML-TR fall under?
The MIC3263YML-TR is listed under Semiconductors - ICs > More Semiconductors - ICs.
Can I view similar or alternative parts?
You can view similar parts to MIC3263YML-TR when available in the More Semiconductors - ICs range under the specifications section at the bottom of the details page.
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Submit any questions directly to the customer support team of the distributor listing the product. For the MIC3263YML-TR you can contact the distributor directly for product support, shipping queries etc.
Is the MIC3263YML-TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MIC3263YML-TR have stock available?
Authorised distributors including Newark Electronics, Future Electronics, Avnet America, TME and Farnell have stock available or on a lead time for MIC3263YML-TR.
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