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STK672-740A-E Fiches technique(PDF) 9 Page - Sanyo Semicon Device |
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STK672-740A-E Fiches technique(HTML) 9 Page - Sanyo Semicon Device |
9 / 19 page STK672-740A-E No. A1136-9/19 Usage Notes 1. STK672-740A-E input signal functions and timing [ENABLE, power on reset, and RESETB (Input signal timing when power is first applied)] The control IC of the driver is equipped with a power on reset function capable of initializing internal IC operations when power is supplied. A 4V typ setting is used for power on reset. Because the specification for the MOSFET gate voltage is 5V ±5%, conduction of current to output at the time of power on reset adds electromotive stress to the MOSFET due to lack of gate voltage. To prevent electromotive stress, be sure to set ENABLE=Low while VDD, which is outside the operating supply voltage, is less than 4.75V. ENABLE, φA to φBB Signals Input Timing [ENABLE (Forcible on/off control of the A, AB, B, and BB outputs, and hybrid IC internal operation)] ENABLE=1: Normal operation ENABLE=0: Outputs A, AB, B, and BB forced to the off state. If the φA to φBB signal used for motor rotation suddenly stops, the motor shaft may advance beyond the control position due to inertia. A SLOW DOWN setting where the φA to φBB cycle gradually decreases is required in order to stop at the control position. 4V typ 3.8V typ φA to φBB signal No time specification Control IC power (VDD) rising edge Control IC power on reset RESETB signal input ENABLE signal input No time specification No time specification |
Numéro de pièce similaire - STK672-740A-E |
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Description similaire - STK672-740A-E |
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