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4ch White LED Driver Built-in Current Driver Buck-Boost and Boost DC/DC Controller for Automotive - BD81A74EFV-M (New)

BD81A74EFV-M / BD81A74MUV-M (VQFN28SV5050 package) is a white LED driver with the capability of withstanding high input voltage (maximum 35V). This driver has 4ch constant-current drivers in 1-chip, where each channel can draw up to 120mA (Max), and it is suitable for high illumination LED drive. Furthermore, a buck-boost current mode DC/DC controller is also built to achieve stable operation during power voltage fluctuation. Light modulation (10,000:1@100Hz dimming function) is possible by PWM input.

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Part Number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BD81A74EFV-ME2 Active HTSSOP-B28 2500 2500 Taping Yes
 
Specifications:
Topology Buck-Boost
Number of Outputs 4
Vin(Min.)[V] 4.5
Vin(Max.)[V] 35.0
Output Current(Max.)[mA] 480.0
Vout(Max.)[V] 40.0
Frequency(Max.)[MHz] 2.2
LED Configuration 4
Integrated FET No
Dimming PWM
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 125
Features:
    • AEC-Q100 Qualified(Grade 1)
    • 4ch Current Driver for LED Drive
    • Buck-Boost Current Mode DC/DC Controller
    • Control DC/DC Converter Oscillation Frequency by External Synchronized Signal
    • Spread Spectrum Function
    • LSI Protection Function (UVLO, OVP, TSD, OCP, SCP)
    • LED Abnormality Detection Function (Open/Short)
    • VOUT Discharge Function (Buck-Boost Structure Limitation)
 
 
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PART NUMBER Product Name Package Datasheet Distribution Inventory
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BD81A24MUF-M 4ch White LED Driver with Buck-Boost VQFN28FV5050   inquiry
BD81A44MUF-M 4ch White LED Driver with Buck-Boost VQFN28FV5050   inquiry
BD81A24MUV-M 4ch White LED Driver with Buck-Boost (40 LED Maximum) VQFN28SV5050   Buy Sample
BD81A24EFV-M 4ch White LED Driver with Buck-Boost (40 LED Maximum) HTSSOP-B28   Buy Sample
BD81A44EFV-M 4ch White LED Driver with Buck-Boost (40 LED Maximum) HTSSOP-B28   Buy Sample
New Products:
 
ROHM Semiconductor reserves the right to change the specifications at any time.
 
Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.