Specification	BD81A24MUF-ME2

Current - Output / Channel	120 mA
Dimming	PWM
Frequency [Max]	2.2 MHz
Frequency [Min]	200 kHz
Grade	Automotive
Internal Switch(s)	True
Mounting Type	Wettable Flank, Surface Mount
Number of Outputs	4
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	28-VFQFN Exposed Pad
Qualification	AEC-Q100
Supplier Device Package	VQFN28FV5050
Topology	Step-Down (Buck), Step-Up (Boost)
Type	DC DC Regulator
Voltage - Supply (Max) [Max]	35 V
Voltage - Supply (Min) [Min]	4.5 V

BD81A24MUF-M Series

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

Part	Internal Switch(s)	Voltage - Supply (Max) [Max]	Grade	Type	Voltage - Supply (Min) [Min]	Dimming	Current - Output / Channel	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Topology	Package / Case	Number of Outputs	Frequency [Min]	Frequency [Max]	Qualification	Supplier Device Package
Rohm Semiconductor BD81A24MUF-ME2		35 V	Automotive	DC DC Regulator	4.5 V	PWM	120 mA	125 °C	-40 °C	Surface Mount Wettable Flank	Step-Down (Buck) Step-Up (Boost)	28-VFQFN Exposed Pad	4	200 kHz	2.2 MHz	AEC-Q100	VQFN28FV5050
Rohm Semiconductor BD81A24MUV-ME2		35 V	Automotive	DC DC Controller	4.5 V	PWM	120 mA	125 °C	-40 °C	Surface Mount	Step-Down (Buck) Step-Up (Boost)	28-VFQFN Exposed Pad	4	200 kHz	2.2 MHz	AEC-Q100	VQFN28SV5050

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 4.37
		10	$ 3.93
		25	$ 3.71
		100	$ 3.22
		250	$ 3.05
		500	$ 2.74
		1000	$ 2.31
	Digi-Reel®	1	$ 4.37
		10	$ 3.93
		25	$ 3.71
		100	$ 3.22
		250	$ 3.05
		500	$ 2.74
		1000	$ 2.31
	Tape & Reel (TR)	2500	$ 2.19

Description

General part information

BD81A24MUF-M Series

BD81A24MUV-M / BD81A24EFV-M (HTSSOP-B28 package) 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 (10,000:1 @100Hz dimming function) is possible by PWM input.