BD81A44MUV-ME2 LED Driver ICs by Rohm

4ch White LED Driver with Buck-Boost (40 LED Maximum)


BD81A44MUV-M / BD81A44EFV-M (HTSSOP-B28 package) is a white LED driver with the capability of withstanding high input voltage (35V Max). This driver has 4ch constant-current drivers integrated in 1-chip, where each channel can draw up to 120mA (Max), which is also suitable for high illumination LED drive. Furthermore, a buck-boost current mode DC/DC controller is also integrated to achieve stable operation during power voltage fluctuation. Light modulation (10,000:1 @100Hz dimming function) is possible by PWM input.

Where to Buy

Prices starting from US$1.52

Distributor Stock
Logo for Farnell
Farnell
from US$2.32
18
in stock
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Logo for CoreStaff
CoreStaff
from US$1.52
2,500
in stock
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Logo for Chip One Stop
Chip One Stop
from US$2.73
100
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Logo for Newark Electronics
Newark Electronics
from US$2.42
18
in stock
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element14
from US$2.44
18
in stock
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Logo for Avnet America
Avnet America
from US$2.14
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Features

Integrated Buck-Boost current mode DC/DC controller
Integrated 4ch current driver for LED drive
10,000:1 PWM dimming @100Hz
External switching frequency synchronization
Built-In protection function (UVLO, OVP, OCP, SCP)
LED abnormality detection function (Open/Short)
Integrated VOUT discharge function (Buck-Boost or Buck structure limitation)
AEC-Q100 Qualified (Grade 1)

Specifications

Topology Buck-Boost
Vin(Min.)[V] 4.5
Vin(Max.)[V] 35
Output Current(Max.)[mA] 480
Number of Outputs 4
Vout(Max.)[V] 40
Frequency(Max.)[MHz] 2.2
Integrated FET No
Dimming PWM
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 125
Package Size [mm] 5x5 (t=1)
Common Standard AEC-Q100 (Automotive Grade)

Resources







Manufacturing Data
Factory Information



Alternative Descriptions

Led Driver, Aec-Q100, Buck-Boost, Vqfn28 | Newark Electronics
LED DRIVER, AEC-Q100, BUCK-BOOST, VQFN28 | element14
LED Driver Buck-Boost 4-Ch 24 LEDs PWM 40V 28-Pin VQFN Emboss T/R | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a BD81A44MUV-ME2?

Additional datasheets, footprints and schematics for BD81A44MUV-ME2 are listed on our Part Details page. You can also find images and similar parts to BD81A44MUV-ME2 on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for BD81A44MUV-ME2 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view BD81A44MUV-ME2 price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does BD81A44MUV-ME2 fall under?

The BD81A44MUV-ME2 is listed under LED Lighting Components > LED Driver ICs > DC / DC LED Driver ICs.

Can I view similar or alternative parts?

You can view similar parts to BD81A44MUV-ME2 when available in the DC / DC LED Driver ICs range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the BD81A44MUV-ME2 you can contact the distributor directly for product support, shipping queries etc.

Is the BD81A44MUV-ME2 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ROHM Semiconductor.

Which authorised distributors for BD81A44MUV-ME2 have stock available?

Authorised distributors including CoreStaff, Chip One Stop, Newark Electronics, element14 and Farnell have stock available or on a lead time for BD81A44MUV-ME2.

How do I check stock and lead times for all distributors?

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