Datasheet BCR602 (Infineon) - 6

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BCR602 hot plug IC with dimming Functional description
ILED 100% Analog dimming range 3% 0% VMFIO off 3% dim 100% 0.1V 0.2V 3.3 V 5 V
Figure 4 DC dimming 2.
Pure PWM dimming: The PWM duty cycle at pin MFIO defines the dimming level. The PWM voltage amplitude corresponding to LED on must be in the voltage range specified by VMFIO, 100% and PWM voltage amplitude corresponding to LED off must be in the voltage range specified by VMFIO, off. The LED current is PWM modulated according to the PWM input signal.
3.
For resistive dimming using Rset and internal MFIO current, the internal pull-down has to be taken into account. For proper dimensioning refer to
Figure 5
. 5 V
BCR602
IMFIO,setcs MFIO RMFIO/2 Rset Limiter, RMFIO/2 Buffer R V set * RMFIO MFIO = IMFIO, setcs Rset + RMFIO V R MFIO * RMFIO set = IMFIO,setcs * Rset − VMFIO
Figure 5 R set dimensioning for resistor dimming
• RMFIO.typical = 285 kΩ, • IMFIO,setcs,typical = 20 µA. Datasheet 6 Revision 1.1 2018-12-3 Document Outline Features Protection features Target applications Advantages with respect to discrete solutions Product validation Device information Description Table of contents 1 Pin configuration 2 Functional description 3 Thermal characteristics 4 Absolute maximum ratings 5 Operating conditions 6 Electrical characteristics 7 Package information 8 References Revision history Disclaimer