BD81A74EFV-M Series

4ch White LED Driver Built-in Current Driver Buck-Boost and Boost DC/DC Controller for Automotive

Catalog

4ch White LED Driver Built-in Current Driver Buck-Boost and Boost DC/DC Controller for Automotive

Part	Number of Outputs	Voltage - Supply (Min) [Min]	Current - Output / Channel	Mounting Type	Dimming	Type	Grade	Internal Switch(s)	Frequency [Max]	Frequency [Min]	Topology	Package / Case	Supplier Device Package	Voltage - Supply (Max) [Max]	Qualification	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output
Rohm Semiconductor BD81A74EFV-ME2	4	4.5 V	120 mA	Surface Mount	PWM	DC DC Controller	Automotive		2.2 MHz	200 kHz	Step-Down (Buck) Step-Up (Boost)	28-VSSOP (0.173" 4.40mm Width) Exposed Pad	28-HTSSOP-B	35 V	AEC-Q100	125 °C	-40 °C	40 V

Catalog

4ch White LED Driver Built-in Current Driver Buck-Boost and Boost DC/DC Controller for Automotive

Description

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.