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SG6846ALSY Datasheet(PDF) 10 Page - Fairchild Semiconductor |
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SG6846ALSY Datasheet(HTML) 10 Page - Fairchild Semiconductor |
10 / 15 page © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com SG6846A • Rev. 1.1.4 10 Typical Performance Characteristics (Continued) 60 65 70 75 80 85 -40 -25 -10 5 20 35 50 65 80 95 110 125 Temperature (°C) 0 14 28 42 56 70 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 VFB (V) Figure 14. Normal PWM Frequency (fOSC) vs. Temperature Figure 15. PWM Frequency vs. FB Voltage 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 VIN ( V ) 0.50 0.58 0.66 0.74 0.82 0.90 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 VIN (V) Figure 16. Current-Limit Threshold vs. VIN Voltage Figure 17. 2/3 Current-Limit Threshold vs. VIN Voltage 68.5 69.0 69.5 70.0 70.5 71.0 -40 -25 -10 5 20 35 50 65 80 95 110 125 Temperature (℃) 0.4 0.6 0.8 1.0 1.2 1.4 -40 -25 -10 5 20 35 50 65 80 95 110 125 Temperature (℃) Figure 18. Output Current of RT Pin (IRT) vs. Temperature Figure 19. FB Output High Voltage (VRTTH) vs. Temperature |
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