TL431A, B Series, NCV431A, B Series, SCV431A 140 T Unstable Programmed 3.0 A = 25°C Input TA = 25°C Area VKA(V) C Monitor 120 220 Output A Vref Output B 5.0 2.0 Pulse 100 (mA) C 10 Generator 50 D 15 f = 100 kHz 80 1.0 GND 60 TAGE SWING (V) Stable Stable D 0 VOL 40 B B THODE CURRENT 5.0 Input , CA A 20 A 0 I K 0 0 4.0 8.0 12 16 20 1.0 nF 10 nF 100 nF 1.0 mF 10 mF 100 mF t, TIME (ms) CL, LOAD CAPACITANCE Figure 14. Pulse ResponseFigure 15. Stability Boundary Conditions 150 150 I I K K 10 k V+ V+ C C L L Figure 16. Test Circuit For Curve AFigure 17. Test Circuit For Curves B, C, And Dof Stability Boundary Conditionsof Stability Boundary ConditionsTYPICAL APPLICATIONS V+ V V+ out Vout R1 R1 R2 R2 V + Ǔ out ǒ1 ) R1 V R2 ref V + Ǔ out ǒ1 ) R1 V R2 ref Figure 18. Shunt RegulatorFigure 19. High Current Shunt Regulatorwww.onsemi.comShare Feedback7 Your Opinion Matters