LED Flexi Strip

 Figure 7 Schematic current bias scheme

  LED Bulb

    MAX1916 is a dedicated white LED driver IC, which provides an advanced white LED current bias circuit. MAX1916 SOT-23 package in the micro integrates the three current source, flows through a current mirror to the RSET three outputs, shown in Figure 8. Several circuits have the same MOSFET, the gate-source with the same power, so they are the same channel current, the  LED Module current size determined by the mirror current ISET. The maximum current mismatch MAX1916 degree ± 5%, "Mirror factor" for the 200A / A. That is, when ISET is 50μA, each output current of 10 × (1 ± 0.05) mA (max). SET Duanyou internally biased at 1.25V. ISET determined by the following formula:

ISET = (VCC-1.25V) / RSET (1)

IOUT = 200ISET (2)   LED Flexi Strip

Figure 8 MAX1916 provides a mirror for the LED current

    Each deviation between the current ± 5%. Output saturation voltage is:

VOUT (SAT) = RDS × IOUT (3)