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Constant Current LED Driver with 64 Dimming Steps for up to 4 LEDs - BD1754HFNThe 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.
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* This product is a STANDARD grade product and not recommend for on-vehicle devices. |
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)
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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