LED Drivers for Automotive Light - BD8381AEFV-M

BD8381AEFV-M is a white LED driver with the capability of withstanding high input voltage (50V MAX). It has also an integrated current-mode, buck-boost DC/DC controller to achieve stable operation against high input voltage and to remove the constraint of the number of LEDs in series connection. The LED brightness is controlled by either linear or PWM signal and is also possible to be controlled even without using a microcomputer, but instead, by means of the built-in PWM brightness signal generation circuit.

Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD8381AEFV-ME2 Active HTSSOP-B28 2500 2500 Taping Yes
Topology Buck-Boost
Number of Outputs 1
Vin(Min.)[V] 5.0
Vin(Max.)[V] 30.0
Vout(Max.)[V] 50.0
Frequency(Max.)[MHz] 0.6
Integrated FET No
Dimming PWM / Analog
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 125
    • Input voltage range 5.0-30V
    • Integrated buck-boost current-mode DC/DC controller
    • Built-in CR timer for PWM brightness
    • PWM linear brightness
    • Built-in protection functions (UVLO, OVP, TSD, OCP, SCP)
    • LED error status detection function (OPEN/ SHORT)
    • HTSSOP-B28 package
Technical Data
Application Note

Thermal Resistance