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APX9150 Datasheet(PDF) 9 Page - Anpec Electronics Coropration |
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APX9150 Datasheet(HTML) 9 Page - Anpec Electronics Coropration |
9 / 16 page Copy r ight © ANPEC Electronics Corp. Rev . A. 3 - Nov . , 2 0 1 7 APX9 1 5 0 w w w .anpec.com .t w 9 Quick Start and Standby Mode This IC would enter standby mode when the PWM input keeps low level for then 66.5m(typ.). In standby mode, it will shutdown amplifier and FG. In standby mode, the lock protection function doesn’t work, therefore, starting fan is unobstructed when releasing standby mode. 66.5ms (typ.) disable enable enable PWM Lock protect enable (internal) The APX9150 built in PWM soft-switch output control cir- cuit to improve the vibration and noise of fan motor operation. At start-up operation, If the voltage higher than 3.8V or at PWM mode, the APX9150 drive the output driver by 50% duty square wave to force the fan motor start to rotate. After several 50% duty square wave outputs, the internal PWM soft-switch control circuit will be enable to drive fan motor to improve vibration and noise. PWM Soft-Switch Function Bop Brp B=0 OUT2 OUT1 FG Start-up operation PWM Soft-Stwitch operation Fu n ct ion D e scr ip t ion ( Con t .) |
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