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BD9853AFV Datasheet(PDF) 4 Page - Rohm |
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BD9853AFV Datasheet(HTML) 4 Page - Rohm |
4 / 17 page ![]() BD9853AFV Technical Note 4/16 www.rohm.com 2009.05 - Rev.A © 2009 ROHM Co., Ltd. All rights reserved. -180 -160 -140 -120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 180 0.01 0.1 1 10 100 1000 10000 100000 FREQUENCY[KHz] 0 10 20 30 40 50 60 70 80 90 100 1.31.41.51.61.71.8 1.92.02.12.22.32.42.52.6 FB VOLTAGE:VFB[V] 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 4 FB VOLTAGE[V] -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 FB VOLTAGE[V] 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 0.00.2 0.40.6 0.81.0 1.21.4 1.61.8 2.02.2 2.42.6 2.83.0 3.23.4 3.63.8 4.0 (OUTL-GND) VOLTAGE[V] VCC=4.5V VCC=12V,18V 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 0.00.2 0.40.60.81.0 1.21.41.6 1.82.02.2 2.42.62.8 3.0 3.23.43.6 3.8 4.0 (VCC-OUTH) VOLTAGE:[V] VCC=12V,18V VCC=4.5V 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 (REGB-OUTH) VOLTAGE[V] 4 VCC=4.5V VCC=12V,18V 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 (REGA-OUTL) VOLTAGE[V] VCC=12V,18V VCC=4.5V ● Characteristic Data OUTL OUTH Fig.3 FB SINK CURRENT Fig.5 OUTH SINK CURRENT Fig.7 OUTL SINK CURRENT Fig.1 FB VOLTAGE VS ON DUTY Fig.2 ERROR AMP OPEN LOOP Phase Gain Fig.4 FB SOURCE CURRENT Fig.6 OUTH SOURCE CURRENT Fig.8 OUTL SOURCE CURRENT |
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