Table 4-1 lists all the input conditions for a design example show in Figure 4-1

Calculations

• Max Iref Variation = 100 uA

• R1 can be calculated from equation 3 , R1 = 35 kΩ

• R2 can be calculated from equation 4.

• R2 - 35 kΩ

• RPU can be calculated from equation 3 , RPU = 800 Ω

• This design does not use any load capacitor. However, the designer can put a load capacitor from cathode to anode as discussed in Section 3.3.