BD81A74MUV-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	Voltage - Supply (Max) [Max]	Supplier Device Package	Current - Output / Channel	Grade	Dimming	Mounting Type	Type	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Voltage - Output	Frequency [Min]	Frequency [Max]	Qualification	Topology	Voltage - Supply (Min) [Min]	Internal Switch(s)
Rohm Semiconductor BD81A74MUV-ME2	35 V	VQFN28SV5050	120 mA	Automotive	PWM	Surface Mount	DC DC Controller	28-VFQFN Exposed Pad	125 °C	-40 °C	4	40 V	200 kHz	2.2 MHz	AEC-Q100	Step-Down (Buck) Step-Up (Boost)	4.5 V

Catalog

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

Key Features

• AEC-Q100 Qualified(Grade 1), 4ch Current Driver for LED Drive, Buck-Boost Current Mode DC/DC Controller, Control DC/DC Converter Oscillation Frequency by External Synchronized Signal, Spread Spectrum Function, LSI Protection Function (UVLO, OVP, TSD, OCP, SCP), LED Abnormality Detection Function (Open/Short), VOUT Discharge Function (Buck-Boost Structure Limitation)

Description

BD81A74MUV-M / BD81A74EFV-M (HTSSOP-B28 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.