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TA8493F Datasheet(PDF) 3 Page - Toshiba Semiconductor |
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TA8493F Datasheet(HTML) 3 Page - Toshiba Semiconductor |
3 / 25 page TA8493F/AF/BF 2002-01-31 3 PIN Assignment Terminal No. Terminal Symbol Function Remarks 1 Lb (G) b-phase upper side power transistor (base) output terminal Keep open. 2 La (G) a-phase upper side power transistor (base) output terminal Keep open. 3 La a-phase output terminal Connect to the coil. 4 VM2 Supply voltage terminal for motor drive Connect to VM1 externally. 5 SB RUN/STOP control terminal H: RUN, L: STOP 6 RF1 Output current detection terminal Sets limiter current value. Connect to RF2 externally and between this terminal and GND. 7 GND2 GND ¾ 8 CRF Output current filter terminal Connect a capacitor between this terminal and GND. 9 N.C. 10 FGO FG amplifier output terminal Outputs a signal whose frequency is determined by the CD rotation frequency. 11 BRK Brake mode select terminal Output mode when VC > Vref 12 Hb - b-phase negative hall signal input terminal Connect to hall element output terminal. 13 Hb + b-phase positive hall signal input terminal Connect to hall element output terminal. 14 Ha - a-phase negative hall signal input terminal Connect to hall element output terminal. 15 Ha + a-phase positive hall signal input terminal Connect to hall element output terminal. 16 Hc + c-phase positive hall signal input terminal Connect to hall element output terminal. 17 Hc - a-phase negative hall signal input terminal Connect to hall element output terminal. 18 HB Hall element bias terminal Open collector output. Connect to the negative side of hall element bias line. 19 Cd Forward/reverse changeover gain adjustment terminal Adjust a rotation direction changeover gain 20 VCC Supply voltage terminal for control circuits VCC (opr) = 4.5 to 5.5 V 21 VC Control amplifier input terminal Use the control signal as input. 22 Vref Control amplifier reference voltage input terminal Use the reference voltage for the control amplifier as input. 23 OSC Triangular wave oscillation terminal Connect a capacitor between this terminal and GND. 24 GND1 GND ¾ 25 RF2 Output current detection terminal Sets limiter current value. Connect to RF1 externally and between this terminal and GND. 26 MS Mode select terminal Determines output mode. 27 Lc (G) c-phase upper side power transistor (base) output terminal Keep open. 28 Lc c-phase output terminal Connect to the coil. 29 VM1 Supply voltage terminal for motor drive Connect to VM2 externally. 30 Lb b-phase output terminal Connect to the coil. |
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