BD81A34MUV-M/EFV-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 （dimming function） is possible by PWM input.

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Datasheet 4ch White LED Driver with BuckBoost 32 LED Maximum BD81A34MUVM BD81A34EFVM Key Specifications cid729cid231 Operating Input Voltage Range cid729cid231 Output LED Current Accuracy cid729cid231 DCDC Oscillation Frequency cid729cid231 Operating Temperature Range cid729cid231 LED Maximum Output Current 45 to 35 V 3050mA 200 to 2200kHz 40 to 125cid710 120mAch Packages WTyp x DTyp x HMax VQFN28SV5050 HTSSOPB28 BD81A34MUVM BD81A34EFVM W L H ......