4ch White LED Driver with Buck-Boost (40 LED Maximum) - BD81A44MUV-M

BD81A44MUV-M 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 (5000:1 dimming function) is possible by PWM input.

número de peça
Estado de Condição
Quantidade Unidade
Quantidade mínima Package
tipo de embalagem
BD81A44MUV-ME2 Active VQFN28SV5050 2500 2500 Taping sim
Topology Buck-Boost
Number of Outputs 4
Vin(Min.)[V] 4.5
Vin(Max.)[V] 35.0
Output Current(Max.)[mA] 480.0
Frequency(Max.)[MHz] 2.2
LED Configuration 4 x 8
Dimming PWM
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 125
    • Integrated Buck-Boost current mode DC/DC controller
    • Integrated 4ch current driver for LED drive
    • 5000:1 PWM dimming @200Hz
    • 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
Dados técnicos
Application Note

Thermal Resistance