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STK672-740B-E Datasheet(PDF) 6 Page - Sanyo Semicon Device |
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STK672-740B-E Datasheet(HTML) 6 Page - Sanyo Semicon Device |
6 / 23 page STK672-740B-E No. A1932-6/23 • Motor current peak value IOH setting IOH=(Vref÷4.9) ÷Rs The value of 4.9 in Equation above represents the Vref voltage as divided by a circuit inside the control IC. Vref=(R02 ÷ (R01+R02)) ×5V(or 3.3V) Rs is an internal current detection resistor value of the hybrid IC. Rs=0.089 Ω when using the STK672-740B-E Input Pin Functions Pin Name Pin No. Function Input Conditions When Operating φA 13 Pin 5, phase A output φAB 17 Pin 7, phase AB output φB 12 Pin 3, phase B output φBB 10 Pin 1, phase BB output Low active (with a function to prevent simultaneous ON of φA and φAB, or φB and φBB) RESETB 14 System reset A reset is applied by a low level ENABLE 15 A, AB, B, and, BB outputs cut off A, AB, B, and BB outputs are cut off by a low level Output Pin Functions Pin Name Pin No. Function Input Conditions When Operating FAULT1 16 Monitor pin when any of motor terminal open, overcurrent, or overheat is detected. Low level is output when detected. FAULT2 8 Monitor pin used when over-current detection or overheat detection function is activated. 3 levels output Note: See the timing chart for the concrete details on circuit operation. IOH 0 |
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