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NE556 数据表(PDF) 5 Page - STMicroelectronics |
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NE556 数据表(HTML) 5 Page - STMicroelectronics |
5 / 8 page NE556-SA556-SE556 5/8 Figure 7 : High Output Voltage Drop versus Output Figure 8 : Delay Time versus Supply Voltage Figure 9 : Propagation Delay versus Voltage Level of Trigger Value TYPICAL APPLICATION 50% DUTY CYCLE OSCILLATOR t1 = 0.693 RA.C PULSE WIDTH MODULATOR Output R C 1/2 NE556 SE556 6 4 5 7 3 2 1 14 A (8) (10) (9) (11) (12) VCC 51kW (13) 22kW Rs 0.01nF t2 = [(RARB)/(RA+RB)]CLn RB 2 RA – 2 RB RA – --------------------------- f = t1 t1 t2 + ----------------- RB < 1 2 --- RA ti t2 t1 Output R C 1/2 NE556 SE556 6 4 5 7 3 2 1 14 A (8) (10) (9) (11) (12) VCC (13) Trigger MODULATION INPUT |
类似零件编号 - NE556 |
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类似说明 - NE556 |
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