BD81A24MUV-M
4ch White LED Driver with Buck-Boost (40 LED Maximum)

BD81A24MUV-M / BD81A24EFV-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.

Product Detail

 
Part Number | BD81A24MUV-ME2
Status | Recommended
Package | VQFN28SV5050
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Functional Safety:

Category : FS supportive
A product that has been developed for automotive use and is capable of supporting safety analysis with regard to the functional safety.

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

Yes

Dimming

PWM

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

Package Size [mm]

5x5 (t=1)

Common Standard

AEC-Q100 (Automotive Grade)

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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)