Other Parts Discussed in Thread: TL431
Dear team,
1. Below specs are reference voltage's accuracy, and the test condition is Ika=1mA. If Ika>1mA, will the accuracy change? Is Ika related to accuracy?
2. How to calculate the Ika? In my understanding, for TL431X-Q1, the min current is 1mA which means this device can't work normally at Ika<1mA. If TL431 has no load, it is better to adjust R1 value to set Ika=1mA, in this way, R1 has minimum dissipation, Ika*R1. If TL431 has load, input=5V, Vka=2.5V. The current that load needs is 2.5/12.5=0.2mA, then Ika=(5-2.5)/R1-0.2, right?
Thanks & Best Regards,
Sherry