Datasheet FL7921R (ON Semiconductor) - 10

FL7921R TYPICAL PERFORMANCE CHARACTERISTICS
(These characteristic graphs are normalized at TA = 25C) 18.5 11 18 10.5 (V) (V) 17.5 −OFF M 10 −ON DDV −PW DDV 17 9.5 16.5 9 −40 −25 −10 5 20 35 50 65 80 95 110 125 −40 −25 −10 5 20 35 50 65 80 95 110 125 Temperature ( C) Temperature ( C)
Figure 4. Turn−On Threshold Voltage Figure 5. PWM−Off Threshold Voltage
15 28 13 27 26 11 (V) (V) 25 9 −OFF −OVP 24 DD DD V 7 V 23 5 22 3 21 −40 −25 −10 5 20 35 50 65 80 95 110 125 −40 −25 −10 5 20 35 50 65 80 95 110 125 Temperature ( C) Temperature ( C)
Figure 6. Turn−Off Threshold Voltage Figure 7. VDD Over−Voltage Protection Threshold
30 12 25 10 20 8 (mA) (mA) 15 6 −ST −OP I DD 10 I DD 4 5 2 0 0 −40 −25 −10 5 20 35 50 65 80 95 110 125 −40 −25 −10 5 20 35 50 65 80 95 110 125 Temperature ( C) Temperature ( C)
Figure 8. Startup Current Figure 9. Operating Current
2.7 17 2.65 16.5 2.6 16 (V) 2.55 (V) 15.5 Z V REF V 2.5 15 2.45 14.5 2.4 14 −40 −25 −10 5 20 35 50 65 80 95 110 125 −40 −25 −10 5 20 35 50 65 80 95 110 125 Temperature ( C) Temperature ( C)
Figure 10. PFC Output Feedback Reference Voltage Figure 11. PFC Gate Output Clamping Voltage www.onsemi.com 10