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APX9153A Datasheet(PDF) 6 Page - Anpec Electronics Coropration |
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APX9153A Datasheet(HTML) 6 Page - Anpec Electronics Coropration |
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6 / 12 page  Copy r ig ht © ANPEC Electronics Corp. Rev . A. 2 - Mar . , 2 0 1 7 w w w .anpec.com .t w 6 APX9 1 5 3 A Fu n ct ion D e scr ipt ion The APX9153A built in a Hall-effect sensor plane to sense the vertical magnetic flux density (B). There are two out- put drivers in APX9153A to drive single-phase DC brushless motor. When the N pole magnetic field close to the IC marking surface and the magnetic flux density higher than operate point (Bop), the OUT1 pin output will turn to HIGH and the OUT2 pin output will turn to LOW. When the N pole magnetic field far away the IC marking surface and S pole magnetic field close to the IC marking surface until the magnetic flux density higher than re- lease point (Brp), the OUT1 pin output will turn LOW and the OUT2 pin output will turn HIGH. Output Switch Principle S N Marking Surface Marking Surface Bop Brp B VOUT2 Bop B VOUT2 Brp B VOUT1 Bop B VOUT1 Brp Bhys Bhys Bop Bop Brp Brp S N The APX9153A provides the soft-start function to reduce vibration at power-on and lock-restart moments. The soft- start function has four stages 50% → 70% → 90% → 100%. At first the output duty is 50% after 64 FG H-L cycle times the output duty is change to next stage 70% until 192 FG H-L cycle times the soft-start function will end. If the voltage higher than 3.2V soft-start function is enable, else the soft-start function is disable. Lockup Protection and Automatic Restart The APX9153A detects the rotation of the motor by inter- nal hall sensor signal, and adjusts lock detection ON time (T ON) and lock detection OFF time (TOFF) by internal counter. Soft-Start Function OUT1 OUT2 FG VCC OUTPUTDuty50% OUTPUTDuty70% OUTPUTDuty90% OUTPUTFull Duty FGH-L64cycle times FGH-L64cycle times FGH-L64cycle times Soft-StartFunction Normal operation Bop Brp B=0 Lock OUT1 FG Release Reset T OFF T ON OUT2 B=0 Lock Detection T OFF |
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