Constant Current LED Driver with 64 Dimming Steps for up to 4 LEDs - BD1754HFN

The multi-level brightness control LED works as a constant current driver in 64 steps, so that the driving current can be adjusted finely. BD1754HFN is best suited to turn on LEDs that require high-accuracy LED brightness control.

Data Sheet

Additional Information

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* This product is a STANDARD grade product and not recommend for on-vehicle devices.

Part number	Status	Package	Unit Quantity	Minimum Package Quantity	Packing Type	RoHS
BD1754HFN-TR	Active	HSON8	3000	3000	Taping	Yes

Specifications:

Topology	Constant Current
Number of Outputs	4
Dimming	6-Bit DC
Analog Dimming Steps	64
Per Channel Drive(Max.)[mA]	64.0
Ch to Ch Accuracy(Typ.)[±%]	0.5
Vout(Max.)[V]	7.0
Data Input	1-wire
Data Transfer Rate(Max.)[MHz]	2.8
Data Vin(Min.)[V]	0.6
Data Vin(Max.)[V]	1.4
LED Open Detection	No
Vin(Min.)[V]	2.7
Vin(Max.)[V]	5.5
Operating Temperature (Min.)[°C]	-30
Operating Temperature (Max.)[°C]	85

Features:

・Current regulation for LED up to 4 parallels
・Adjustable constant current 64 steps
・High accuracy and matching of each current channel (0.5% Typ)
・Brightness control via a 1-wire digital control interface (UPIC)

Applications:

Refrigerator

Pin Configuration:

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Technical Data

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Part Explanation

For ICs