TL431_11 Datasheet, PDF (20/79 Pages) Fairchild Semiconductor – Programmable Shunt Regulator

TL431, TL431A, TL431B
TL432, TL432A, TL432B
SLVS543L – AUGUST 2004 – REVISED FEBRUARY 2011
PARAMETER MEASUREMENT INFORMATION
Input
V_KA
I_KA
V_ref
Figure 1. Test Circuit for V_KA = V_ref
Input
R1
I_{r ef}
V_KA
I_KA
R2
V_ref
V_KA
= V_ref
æ
çè^{1 +}
R1
R2
ö
÷ø
+ I_ref
× R1
Figure 2. Test Circuit for V_KA > V_ref
Input
V_KA
I_off
Figure 3. Test Circuit for I_off
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